{"id":121597,"date":"2025-12-15T14:28:38","date_gmt":"2025-12-15T07:28:38","guid":{"rendered":"https:\/\/tino.vn\/blog\/?p=121597"},"modified":"2025-12-15T14:30:38","modified_gmt":"2025-12-15T07:30:38","slug":"rag-la-gi","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/rag-la-gi\/","title":{"rendered":"RAG l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u c\u00e1ch \u1ee9ng d\u1ee5ng RAG trong n8n A-Z"},"content":{"rendered":"\n<p><strong>D\u00f9 doanh nghi\u1ec7p c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng<a href=\"https:\/\/tino.vn\/blog\/tri-tue-nhan-tao-ai-la-gi\/\" target=\"_blank\" data-type=\"post\" data-id=\"2034\" rel=\"noreferrer noopener\"> AI<\/a> v\u00e0o quy tr\u00ecnh v\u1eadn h\u00e0nh nh\u01b0ng v\u1eabn g\u1eb7p ph\u1ea3i m\u1ed9t th\u00e1ch th\u1ee9c, \u0111\u00f3 l\u00e0 thi\u1ebfu d\u1eef li\u1ec7u c\u1eadp nh\u1eadt theo th\u1eddi gian th\u1ef1c ho\u1eb7c thi\u1ebfu ki\u1ebfn th\u1ee9c chuy\u00ean s\u00e2u v\u1ec1 doanh nghi\u1ec7p. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 nan gi\u1ea3i n\u00e0y, k\u1ef9 thu\u1eadt RAG \u0111\u00e3 ra \u0111\u1eddi v\u00e0 tr\u1edf th\u00e0nh ch\u00eca kh\u00f3a v\u00e0ng gi\u00fap AI &#8216;th\u00f4ng minh&#8217; v\u00e0 ch\u00ednh x\u00e1c h\u01a1n. Tuy nhi\u00ean, vi\u1ec7c tri\u1ec3n khai RAG th\u01b0\u1eddng \u0111\u00f2i h\u1ecfi k\u1ef9 n\u0103ng l\u1eadp tr\u00ecnh ph\u1ee9c t\u1ea1p. \u0110\u00e2y c\u0169ng ch\u00ednh l\u00e0 l\u00fac <a href=\"https:\/\/tino.vn\/blog\/n8n-la-gi\/\" target=\"_blank\" data-type=\"post\" data-id=\"104774\" rel=\"noreferrer noopener\">n8n<\/a> ph\u00e1t huy s\u1ee9c m\u1ea1nh. V\u1eady RAG l\u00e0 g\u00ec? C\u00f9ng Tino t\u00ecm hi\u1ec3u c\u00e1ch \u1ee9ng d\u1ee5ng RAG trong n8n qua b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9!<\/strong><\/p>\n\n\n\n<h2 id=\"T\u1ed5ng_quan_v\u1ec1_RAG_\"><a id=\"post-121597-_l5kqz8gj95ve\"><\/a><strong>T\u1ed5ng quan v\u1ec1 RAG <\/strong><\/h2>\n\n\n\n<h3 id=\"RAG_l\u00e0_g\u00ec?\"><a id=\"post-121597-_nkq7ob651i7l\"><\/a><strong>RAG l\u00e0 g\u00ec?<\/strong><\/h3>\n\n\n\n<p>RAG (vi\u1ebft t\u1eaft c\u1ee7a <em>Retrieval-Augmented Generation<\/em>) l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt t\u1ed1i \u01b0u h\u00f3a trong l\u0129nh v\u1ef1c tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m n\u00e2ng cao \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 t\u00ednh tin c\u1eady c\u1ee7a c\u00e1c m\u00f4 h\u00ecnh ng\u00f4n ng\u1eef l\u1edbn (LLM). Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch cho ph\u00e9p m\u00f4 h\u00ecnh tham chi\u1ebfu \u0111\u1ebfn c\u00e1c ngu\u1ed3n d\u1eef li\u1ec7u b\u00ean ngo\u00e0i (nh\u01b0 t\u00e0i li\u1ec7u n\u1ed9i b\u1ed9, c\u01a1 s\u1edf d\u1eef li\u1ec7u vector ho\u1eb7c th\u00f4ng tin tr\u1ef1c tuy\u1ebfn) tr\u01b0\u1edbc khi t\u1ea1o ra ph\u1ea3n h\u1ed3i cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-1.png\" alt=\"RAG l\u00e0 g\u00ec?\" class=\"wp-image-121604\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-1.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-1-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>RAG l\u00e0 g\u00ec?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p>Thay v\u00ec ch\u1ec9 d\u1ef1a ho\u00e0n to\u00e0n v\u00e0o kho ki\u1ebfn th\u1ee9c t\u0129nh \u0111\u00e3 \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n t\u1eeb tr\u01b0\u1edbc \u2013 v\u1ed1n th\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n v\u1ec1 th\u1eddi gian c\u1eadp nh\u1eadt v\u00e0 thi\u1ebfu t\u00ednh chuy\u00ean s\u00e2u \u2013 quy tr\u00ecnh RAG s\u1ebd truy xu\u1ea5t c\u00e1c \u0111o\u1ea1n th\u00f4ng tin li\u00ean quan nh\u1ea5t v\u00e0 cung c\u1ea5p ch\u00fang l\u00e0m ng\u1eef c\u1ea3nh \u0111\u1ea7u v\u00e0o cho AI.<\/p>\n\n\n\n<p>Nh\u1edd c\u01a1 ch\u1ebf k\u1ebft h\u1ee3p ch\u1eb7t ch\u1ebd gi\u1eefa kh\u1ea3 n\u0103ng t\u00ecm ki\u1ebfm d\u1eef li\u1ec7u v\u00e0 n\u0103ng l\u1ef1c sinh v\u0103n b\u1ea3n t\u1ef1 nhi\u00ean, gi\u1ea3i ph\u00e1p n\u00e0y gi\u00fap kh\u1eafc ph\u1ee5c hi\u1ec7u qu\u1ea3 hi\u1ec7n t\u01b0\u1ee3ng &#8220;\u1ea3o gi\u00e1c&#8221; th\u00f4ng tin, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o c\u00e2u tr\u1ea3 l\u1eddi lu\u00f4n s\u00e1t v\u1edbi b\u1ed1i c\u1ea3nh th\u1ef1c t\u1ebf c\u1ee7a doanh nghi\u1ec7p m\u00e0 kh\u00f4ng c\u1ea7n t\u1ed1n k\u00e9m chi ph\u00ed \u0111\u1ec3 t\u00e1i hu\u1ea5n luy\u1ec7n m\u00f4 h\u00ecnh.<\/p>\n\n\n\n<h3 id=\"C\u01a1_ch\u1ebf_ho\u1ea1t_\u0111\u1ed9ng_c\u1ed1t_l\u00f5i_c\u1ee7a_RAG\"><a id=\"post-121597-_d42rqq6ztau\"><\/a><strong>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ed1t l\u00f5i c\u1ee7a RAG<\/strong><\/h3>\n\n\n\n<p>Quy tr\u00ecnh v\u1eadn h\u00e0nh c\u1ee7a k\u1ef9 thu\u1eadt RAG kh\u00f4ng qu\u00e1 ph\u1ee9c t\u1ea1p nh\u01b0ng l\u1ea1i mang \u0111\u1ebfn hi\u1ec7u qu\u1ea3 v\u01b0\u1ee3t tr\u1ed9i nh\u1edd s\u1ef1 ph\u1ed1i h\u1ee3p nh\u1ecbp nh\u00e0ng gi\u1eefa ba giai \u0111o\u1ea1n ch\u00ednh: <strong>Truy xu\u1ea5t (Retrieval)<\/strong>, <strong>T\u0103ng c\u01b0\u1eddng (Augmentation)<\/strong> v\u00e0 <strong>T\u1ea1o sinh (Generation)<\/strong>.<\/p>\n\n\n\n<p>\u0110\u1ea7u ti\u00ean, to\u00e0n b\u1ed9 d\u1eef li\u1ec7u ngu\u1ed3n (t\u00e0i li\u1ec7u, v\u0103n b\u1ea3n, th\u00f4ng tin s\u1ea3n ph\u1ea9m) s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh c\u00e1c vect\u01a1 s\u1ed1 h\u1ecdc (embeddings) v\u00e0 l\u01b0u tr\u1eef trong m\u1ed9t c\u01a1 s\u1edf d\u1eef li\u1ec7u vect\u01a1 chuy\u00ean d\u1ee5ng. Khi ng\u01b0\u1eddi d\u00f9ng g\u1eedi m\u1ed9t c\u00e2u h\u1ecfi ho\u1eb7c y\u00eau c\u1ea7u, h\u1ec7 th\u1ed1ng s\u1ebd th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed5i c\u00e2u l\u1ec7nh \u0111\u00f3 th\u00e0nh vect\u01a1 t\u01b0\u01a1ng \u1ee9ng v\u00e0 qu\u00e9t qua c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u1ec3 t\u00ecm ki\u1ebfm nh\u1eefng \u0111o\u1ea1n th\u00f4ng tin c\u00f3 n\u1ed9i dung ho\u1eb7c ng\u1eef ngh\u0129a t\u01b0\u01a1ng \u0111\u1ed3ng nh\u1ea5t.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-2.png\" alt=\"C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ed1t l\u00f5i c\u1ee7a RAG\" class=\"wp-image-121605\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-2.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-2-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ed1t l\u00f5i c\u1ee7a RAG<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p>Ti\u1ebfp theo, \u1edf giai \u0111o\u1ea1n t\u0103ng c\u01b0\u1eddng, c\u00e1c \u0111o\u1ea1n th\u00f4ng tin v\u1eeba t\u00ecm \u0111\u01b0\u1ee3c s\u1ebd \u0111\u01b0\u1ee3c gh\u00e9p n\u1ed1i v\u1edbi c\u00e2u h\u1ecfi g\u1ed1c c\u1ee7a ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t ng\u1eef c\u1ea3nh \u0111\u1ea7u v\u00e0o \u0111\u1ea7y \u0111\u1ee7 v\u00e0 chi ti\u1ebft.<\/p>\n\n\n\n<p>Cu\u1ed1i c\u00f9ng, m\u00f4 h\u00ecnh ng\u00f4n ng\u1eef l\u1edbn (LLM) s\u1ebd ti\u1ebfp nh\u1eadn to\u00e0n b\u1ed9 kh\u1ed1i th\u00f4ng tin \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00e0m gi\u00e0u n\u00e0y. Thay v\u00ec ph\u1ea3i t\u1ef1 suy di\u1ec5n d\u1ef1a tr\u00ean d\u1eef li\u1ec7u hu\u1ea5n luy\u1ec7n c\u0169, AI s\u1ebd s\u1eed d\u1ee5ng ng\u1eef c\u1ea3nh \u0111\u01b0\u1ee3c cung c\u1ea5p \u0111\u1ec3 t\u1ed5ng h\u1ee3p v\u00e0 so\u1ea1n th\u1ea3o c\u00e2u tr\u1ea3 l\u1eddi ch\u00ednh x\u00e1c, s\u00e1t th\u1ef1c t\u1ebf v\u00e0 ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi nhu c\u1ea7u c\u1ee7a ng\u01b0\u1eddi h\u1ecfi.<\/p>\n\n\n\n<h3 id=\"T\u1ea1i_sao_RAG_l\u1ea1i_quan_tr\u1ecdng_\u0111\u1ed1i_v\u1edbi_doanh_nghi\u1ec7p_hi\u1ec7n_nay?\"><a id=\"post-121597-_8c85egame7im\"><\/a><strong>T\u1ea1i sao RAG l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi doanh nghi\u1ec7p hi\u1ec7n nay?<\/strong><\/h3>\n\n\n\n<p>Trong k\u1ef7 nguy\u00ean s\u1ed1, d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c xem l\u00e0 t\u00e0i s\u1ea3n qu\u00fd gi\u00e1 nh\u1ea5t c\u1ee7a m\u1ecdi t\u1ed5 ch\u1ee9c. Vi\u1ec7c \u1ee9ng d\u1ee5ng RAG \u0111ang tr\u1edf th\u00e0nh xu h\u01b0\u1edbng t\u1ea5t y\u1ebfu v\u00ec nh\u1eefng gi\u00e1 tr\u1ecb thi\u1ebft th\u1ef1c m\u00e0 gi\u1ea3i ph\u00e1p n\u00e0y mang l\u1ea1i cho doanh nghi\u1ec7p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0110\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c v\u00e0 c\u1eadp nh\u1eadt:<\/strong> C\u00e1c m\u00f4 h\u00ecnh AI truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi th\u1eddi \u0111i\u1ec3m k\u1ebft th\u00fac hu\u1ea5n luy\u1ec7n, d\u1eabn \u0111\u1ebfn vi\u1ec7c thi\u1ebfu h\u1ee5t th\u00f4ng tin m\u1edbi nh\u1ea5t. RAG cho ph\u00e9p h\u1ec7 th\u1ed1ng truy c\u1eadp v\u00e0o d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c ho\u1eb7c t\u00e0i li\u1ec7u n\u1ed9i b\u1ed9 v\u1eeba \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt, gi\u00fap lo\u1ea1i b\u1ecf t\u00ecnh tr\u1ea1ng cung c\u1ea5p th\u00f4ng tin l\u1ed7i th\u1eddi.<\/li>\n\n\n\n<li><strong>Kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng &#8220;\u1ea3o gi\u00e1c&#8221; c\u1ee7a AI:<\/strong> M\u1ed9t trong nh\u1eefng r\u1ee7i ro l\u1edbn nh\u1ea5t khi d\u00f9ng AI l\u00e0 vi\u1ec7c m\u00f4 h\u00ecnh t\u1ef1 b\u1ecba \u0111\u1eb7t th\u00f4ng tin khi kh\u00f4ng bi\u1ebft c\u00e2u tr\u1ea3 l\u1eddi. B\u1eb1ng c\u00e1ch bu\u1ed9c AI ph\u1ea3i d\u1ef1a tr\u00ean ngu\u1ed3n d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c cung c\u1ea5p \u0111\u1ec3 ph\u1ea3n h\u1ed3i, k\u1ef9 thu\u1eadt RAG gi\u00fap gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a r\u1ee7i ro sai l\u1ec7ch th\u00f4ng tin, t\u0103ng \u0111\u1ed9 tin c\u1eady cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u0103m s\u00f3c kh\u00e1ch h\u00e0ng hay t\u01b0 v\u1ea5n t\u1ef1 \u0111\u1ed9ng.<\/li>\n\n\n\n<li><strong>T\u1ed1i \u01b0u h\u00f3a chi ph\u00ed v\u00e0 ngu\u1ed3n l\u1ef1c:<\/strong> Vi\u1ec7c hu\u1ea5n luy\u1ec7n l\u1ea1i (Fine-tuning) m\u1ed9t m\u00f4 h\u00ecnh ng\u00f4n ng\u1eef l\u1edbn \u0111\u1ec3 h\u1ecdc th\u00eam ki\u1ebfn th\u1ee9c m\u1edbi th\u01b0\u1eddng t\u1ed1n k\u00e9m r\u1ea5t nhi\u1ec1u chi ph\u00ed t\u00ednh to\u00e1n v\u00e0 th\u1eddi gian. Ng\u01b0\u1ee3c l\u1ea1i, vi\u1ec7c c\u1eadp nh\u1eadt c\u01a1 s\u1edf d\u1eef li\u1ec7u cho h\u1ec7 th\u1ed1ng RAG di\u1ec5n ra nhanh ch\u00f3ng, \u0111\u01a1n gi\u1ea3n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n nhi\u1ec1u.<\/li>\n\n\n\n<li><strong>B\u1ea3o m\u1eadt d\u1eef li\u1ec7u n\u1ed9i b\u1ed9:<\/strong> Doanh nghi\u1ec7p c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng s\u1ee9c m\u1ea1nh ng\u00f4n ng\u1eef c\u1ee7a c\u00e1c m\u00f4 h\u00ecnh AI c\u00f4ng c\u1ed9ng \u0111\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u ri\u00eang t\u01b0 m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i lo l\u1eafng v\u1ec1 vi\u1ec7c d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m b\u1ecb r\u00f2 r\u1ec9 hay b\u1ecb s\u1eed d\u1ee5ng \u0111\u1ec3 hu\u1ea5n luy\u1ec7n ng\u01b0\u1ee3c l\u1ea1i cho m\u00f4 h\u00ecnh g\u1ed1c, do quy\u1ec1n ki\u1ec3m so\u00e1t d\u1eef li\u1ec7u truy xu\u1ea5t ho\u00e0n to\u00e0n n\u1eb1m trong tay doanh nghi\u1ec7p.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-3.png\" alt=\"T\u1ea1i sao RAG l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi doanh nghi\u1ec7p hi\u1ec7n nay?\" class=\"wp-image-121606\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-3.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-3-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>T\u1ea1i sao RAG l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi doanh nghi\u1ec7p hi\u1ec7n nay?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h2 id=\"Vai_tr\u00f2_c\u1ee7a_n8n_trong_vi\u1ec7c_tri\u1ec3n_khai_RAG\"><a id=\"post-121597-_v02mz83wryet\"><\/a>Vai tr\u00f2 c\u1ee7a n8n trong vi\u1ec7c tri\u1ec3n khai RAG<\/h2>\n\n\n\n<p>Trong h\u1ec7 sinh th\u00e1i c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a, n8n n\u1ed5i l\u00ean nh\u01b0 m\u1ed9t n\u1ec1n t\u1ea3ng \u01b0u vi\u1ec7t gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng c\u00e1c \u1ee9ng d\u1ee5ng AI ph\u1ee9c t\u1ea1p. \u0110\u1ed1i v\u1edbi vi\u1ec7c tri\u1ec3n khai k\u1ef9 thu\u1eadt RAG, n8n \u0111\u00f3ng vai tr\u00f2 l\u00e0 &#8220;trung t\u00e2m \u0111i\u1ec1u ph\u1ed1i&#8221;, k\u1ebft n\u1ed1i linh ho\u1ea1t gi\u1eefa c\u00e1c ngu\u1ed3n d\u1eef li\u1ec7u, c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u01b0u tr\u1eef v\u00e0 m\u00f4 h\u00ecnh ng\u00f4n ng\u1eef l\u1edbn.<\/p>\n\n\n\n<p>Thay v\u00ec ph\u1ea3i vi\u1ebft h\u00e0ng tr\u0103m d\u00f2ng m\u00e3 l\u1ec7nh b\u1eb1ng Python hay JavaScript \u0111\u1ec3 t\u00edch h\u1ee3p c\u00e1c th\u01b0 vi\u1ec7n nh\u01b0 LangChain, ng\u01b0\u1eddi d\u00f9ng n8n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n to\u00e0n b\u1ed9 quy tr\u00ecnh th\u00f4ng qua giao di\u1ec7n k\u00e9o th\u1ea3 tr\u1ef1c quan. N\u1ec1n t\u1ea3ng n\u00e0y cung c\u1ea5p s\u1eb5n c\u00e1c n\u00fat ch\u1ee9c n\u0103ng (nodes) chuy\u00ean d\u1ee5ng cho AI, cho ph\u00e9p thi\u1ebft l\u1eadp lu\u1ed3ng x\u1eed l\u00fd d\u1eef li\u1ec7u t\u1eeb kh\u00e2u thu th\u1eadp, m\u00e3 h\u00f3a (embedding) \u0111\u1ebfn kh\u00e2u truy xu\u1ea5t v\u00e0 t\u1ea1o c\u00e2u tr\u1ea3 l\u1eddi ch\u1ec9 trong th\u1eddi gian ng\u1eafn.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-4.png\" alt=\"Vai tr\u00f2 c\u1ee7a n8n trong vi\u1ec7c tri\u1ec3n khai RAG\" class=\"wp-image-121607\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-4.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-4-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Vai tr\u00f2 c\u1ee7a n8n trong vi\u1ec7c tri\u1ec3n khai RAG<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p>Ngo\u00e0i ra, n8n mang l\u1ea1i s\u1ef1 linh ho\u1ea1t t\u1ed1i \u0111a cho h\u1ec7 th\u1ed1ng. Ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng thay \u0111\u1ed5i nh\u00e0 cung c\u1ea5p m\u00f4 h\u00ecnh AI (v\u00ed d\u1ee5: chuy\u1ec3n t\u1eeb OpenAI sang Anthropic ho\u1eb7c c\u00e1c m\u00f4 h\u00ecnh Local LLM) m\u00e0 kh\u00f4ng l\u00e0m gi\u00e1n \u0111o\u1ea1n quy tr\u00ecnh v\u1eadn h\u00e0nh. Kh\u1ea3 n\u0103ng t\u00f9y bi\u1ebfn cao gi\u00fap doanh nghi\u1ec7p ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd lu\u1ed3ng d\u1eef li\u1ec7u, \u0111\u1ea3m b\u1ea3o t\u00ednh b\u1ea3o m\u1eadt v\u00e0 t\u1ed1i \u01b0u h\u00f3a chi ph\u00ed v\u1eadn h\u00e0nh cho t\u1eebng t\u00e1c v\u1ee5 c\u1ee5 th\u1ec3.<\/p>\n\n\n\n<h2 id=\"C\u00e1c_th\u00e0nh_ph\u1ea7n_c\u1ea7n_thi\u1ebft_\u0111\u1ec3_x\u00e2y_d\u1ef1ng_RAG_trong_n8n\"><a id=\"post-121597-_bkl025sz14jy\"><\/a>C\u00e1c th\u00e0nh ph\u1ea7n c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e2y d\u1ef1ng RAG trong n8n<\/h2>\n\n\n\n<p>\u0110\u1ec3 thi\u1ebft l\u1eadp m\u1ed9t quy tr\u00ecnh RAG ho\u00e0n ch\u1ec9nh v\u00e0 hi\u1ec7u qu\u1ea3 tr\u00ean n8n, ng\u01b0\u1eddi d\u00f9ng c\u1ea7n chu\u1ea9n b\u1ecb v\u00e0 c\u1ea5u h\u00ecnh 4 th\u00e0nh ph\u1ea7n k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i sau \u0111\u00e2y:<\/p>\n\n\n\n<h3 id=\"M\u00f4_h\u00ecnh_ng\u00f4n_ng\u1eef_l\u1edbn_(Chat_Model)\"><a id=\"post-121597-_j4h7cxyy2sma\"><\/a><strong>M\u00f4 h\u00ecnh ng\u00f4n ng\u1eef l\u1edbn (Chat Model)<\/strong><\/h3>\n\n\n\n<p>\u0110\u00e2y l\u00e0 b\u1ed9 n\u00e3o c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng, ch\u1ecbu tr\u00e1ch nhi\u1ec7m ti\u1ebfp nh\u1eadn th\u00f4ng tin v\u00e0 sinh ra c\u00e2u tr\u1ea3 l\u1eddi t\u1ef1 nhi\u00ean. Trong n8n, th\u00e0nh ph\u1ea7n n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i th\u00f4ng qua c\u00e1c node nh\u01b0 <em><a href=\"https:\/\/tino.vn\/blog\/model-cua-openai\/\" target=\"_blank\" data-type=\"post\" data-id=\"120487\" rel=\"noreferrer noopener\">OpenAI Chat Model<\/a><\/em>, <em><a href=\"https:\/\/tino.vn\/blog\/model-cua-gemini\/\" target=\"_blank\" data-type=\"post\" data-id=\"120523\" rel=\"noreferrer noopener\">Gemini Chat Model<\/a><\/em>, <em><a href=\"https:\/\/tino.vn\/blog\/model-cua-claude\/\" target=\"_blank\" data-type=\"post\" data-id=\"120596\" rel=\"noreferrer noopener\">Anthropic Chat Model (Claude)<\/a><\/em> ho\u1eb7c <em>Ollama Chat Model<\/em> (d\u00e0nh cho c\u00e1c m\u00f4 h\u00ecnh ch\u1ea1y c\u1ee5c b\u1ed9). Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u00f4 h\u00ecnh n\u00e0o s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 th\u00f4ng minh, t\u1ed1c \u0111\u1ed9 ph\u1ea3n h\u1ed3i v\u00e0 ng\u00e2n s\u00e1ch c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n\n\n\n<h3 id=\"C\u01a1_s\u1edf_d\u1eef_li\u1ec7u_Vector\"><a id=\"post-121597-_9prn7ije8pf\"><\/a><strong>C\u01a1 s\u1edf d\u1eef li\u1ec7u Vector<\/strong><\/h3>\n\n\n\n<p>Th\u00e0nh ph\u1ea7n n\u00e0y \u0111\u00f3ng vai tr\u00f2 l\u00e0 kho l\u01b0u tr\u1eef ki\u1ebfn th\u1ee9c d\u00e0i h\u1ea1n cho AI. D\u1eef li\u1ec7u v\u0103n b\u1ea3n sau khi \u0111\u01b0\u1ee3c x\u1eed l\u00fd s\u1ebd \u0111\u01b0\u1ee3c l\u01b0u t\u1ea1i \u0111\u00e2y d\u01b0\u1edbi d\u1ea1ng c\u00e1c d\u00e3y s\u1ed1 (vect\u01a1). n8n h\u1ed7 tr\u1ee3 t\u00edch h\u1ee3p v\u1edbi nhi\u1ec1u nh\u00e0 cung c\u1ea5p Vector Store ph\u1ed5 bi\u1ebfn nh\u01b0 <em>Pinecone<\/em>, <em>Qdrant<\/em>, <em>Supabase<\/em> ho\u1eb7c <em>Weaviate<\/em>. Vector Store \u0111\u1ea3m nhi\u1ec7m ch\u1ee9c n\u0103ng t\u00ecm ki\u1ebfm v\u00e0 truy xu\u1ea5t nhanh ch\u00f3ng c\u00e1c \u0111o\u1ea1n th\u00f4ng tin c\u00f3 \u00fd ngh\u0129a t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi c\u00e2u h\u1ecfi c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-5.png\" alt=\"C\u00e1c th\u00e0nh ph\u1ea7n c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e2y d\u1ef1ng RAG trong n8n\" class=\"wp-image-121608\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-5.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-5-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>C\u00e1c th\u00e0nh ph\u1ea7n c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e2y d\u1ef1ng RAG trong n8n<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"M\u00f4_h\u00ecnh_Embeddings\"><a id=\"post-121597-_9q5e9udpeez0\"><\/a><strong>M\u00f4 h\u00ecnh Embeddings<\/strong><\/h3>\n\n\n\n<p>\u0110\u1ec3 m\u00e1y t\u00ednh c\u00f3 th\u1ec3 hi\u1ec3u v\u00e0 so s\u00e1nh \u0111\u01b0\u1ee3c s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng gi\u1eefa c\u00e1c v\u0103n b\u1ea3n, d\u1eef li\u1ec7u c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh d\u1ea1ng s\u1ed1 h\u1ecdc. M\u00f4 h\u00ecnh Embeddings th\u1ef1c hi\u1ec7n nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i v\u0103n b\u1ea3n \u0111\u1ea7u v\u00e0o (c\u00e2u h\u1ecfi v\u00e0 t\u00e0i li\u1ec7u) th\u00e0nh c\u00e1c vect\u01a1. Trong n8n, ng\u01b0\u1eddi d\u00f9ng c\u1ea7n k\u1ebft n\u1ed1i th\u00e0nh ph\u1ea7n n\u00e0y (th\u01b0\u1eddng d\u00f9ng chung nh\u00e0 cung c\u1ea5p v\u1edbi Chat Model nh\u01b0 OpenAI Embeddings) v\u00e0o c\u1ea3 hai quy tr\u00ecnh: n\u1ea1p d\u1eef li\u1ec7u v\u00e0o kho v\u00e0 truy v\u1ea5n d\u1eef li\u1ec7u ra.<\/p>\n\n\n\n<h3 id=\"C\u00f4ng_c\u1ee5_t\u1ea3i_v\u00e0_x\u1eed_l\u00fd_d\u1eef_li\u1ec7u_\"><a id=\"post-121597-_726myiaozxv\"><\/a><strong>C\u00f4ng c\u1ee5 t\u1ea3i v\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u <\/strong><\/h3>\n\n\n\n<p>Tr\u01b0\u1edbc khi \u0111\u01b0a v\u00e0o l\u01b0u tr\u1eef, d\u1eef li\u1ec7u th\u00f4 c\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd s\u01a1 b\u1ed9.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Document Loader:<\/strong> C\u00e1c node n\u00e0y gi\u00fap n8n \u0111\u1ecdc \u0111\u01b0\u1ee3c n\u1ed9i dung t\u1eeb nhi\u1ec1u \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nhau nh\u01b0 t\u1ec7p PDF, Google Docs, <a href=\"https:\/\/www.notion.com\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.notion.com\/\" rel=\"noreferrer noopener nofollow\">Notion<\/a> ho\u1eb7c n\u1ed9i dung trang web.<\/li>\n\n\n\n<li><strong>Text Splitter:<\/strong> V\u00ec c\u00e1c m\u00f4 h\u00ecnh AI c\u00f3 gi\u1edbi h\u1ea1n v\u1ec1 \u0111\u1ed9 d\u00e0i \u0111\u1ea7u v\u00e0o, c\u00f4ng c\u1ee5 chia nh\u1ecf v\u0103n b\u1ea3n (Text Splitter) s\u1ebd c\u1eaft t\u00e0i li\u1ec7u l\u1edbn th\u00e0nh c\u00e1c \u0111o\u1ea1n nh\u1ecf (chunks) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o vi\u1ec7c t\u00ecm ki\u1ebfm di\u1ec5n ra ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"So_s\u00e1nh_RAG_v\u00e0_MCP\"><a id=\"post-121597-_qzyc0182qen\"><\/a><strong>So s\u00e1nh RAG v\u00e0 MCP<\/strong><\/h3>\n\n\n\n<p>Trong khi RAG t\u1eadp trung v\u00e0o vi\u1ec7c <strong>&#8220;\u0111\u1ecdc v\u00e0 tr\u1ea3 l\u1eddi&#8221;<\/strong> d\u1ef1a tr\u00ean d\u1eef li\u1ec7u, MCP t\u1eadp trung v\u00e0o vi\u1ec7c chu\u1ea9n h\u00f3a c\u00e1ch AI <strong>&#8220;k\u1ebft n\u1ed1i v\u00e0 h\u00e0nh \u0111\u1ed9ng&#8221;<\/strong> v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i.<\/p>\n\n\n\n<p><span style=\"text-decoration: underline;\">B\u1ea3ng so s\u00e1nh nhanh RAG vs MCP:<\/span><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Ti\u00eau ch\u00ed<\/strong><\/td><td><strong>RAG (Retrieval-Augmented Generation)<\/strong><\/td><td><strong>MCP (Model Context Protocol)<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>M\u1ee5c ti\u00eau ch\u00ednh<\/strong><\/td><td>Truy xu\u1ea5t th\u00f4ng tin \u0111\u1ec3 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi ch\u00ednh x\u00e1c h\u01a1n.<\/td><td>Chu\u1ea9n h\u00f3a k\u1ebft n\u1ed1i \u0111\u1ec3 AI th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng ho\u1eb7c d\u00f9ng c\u00f4ng c\u1ee5.<\/td><\/tr><tr><td><strong>Lo\u1ea1i d\u1eef li\u1ec7u<\/strong><\/td><td>D\u1eef li\u1ec7u phi c\u1ea5u tr\u00fac (PDF, Docx, Text) ho\u1eb7c b\u00e1n c\u1ea5u tr\u00fac.<\/td><td>D\u1eef li\u1ec7u c\u1ea5u tr\u00fac, API, Database, v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 h\u1ec7 th\u1ed1ng.<\/td><\/tr><tr><td><strong>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng<\/strong><\/td><td>T\u00ecm ki\u1ebfm \u0111o\u1ea1n v\u0103n b\u1ea3n t\u01b0\u01a1ng \u0111\u1ed3ng -&gt; G\u1eedi k\u00e8m ng\u1eef c\u1ea3nh cho AI -&gt; AI sinh c\u00e2u tr\u1ea3 l\u1eddi.<\/td><td>Thi\u1ebft l\u1eadp giao th\u1ee9c chu\u1ea9n (Client-Host-Server) \u0111\u1ec3 AI g\u1ecdi h\u00e0m (Function Calling) ho\u1eb7c thao t\u00e1c tr\u00ean \u1ee9ng d\u1ee5ng kh\u00e1c.<\/td><\/tr><tr><td><strong>T\u00ednh ch\u1ea5t<\/strong><\/td><td>Th\u1ee5 \u0111\u1ed9ng (Ch\u1ec9 \u0111\u1ecdc v\u00e0 t\u1ed5ng h\u1ee3p th\u00f4ng tin).<\/td><td>Ch\u1ee7 \u0111\u1ed9ng (C\u00f3 th\u1ec3 ghi, s\u1eeda, x\u00f3a ho\u1eb7c k\u00edch ho\u1ea1t quy tr\u00ecnh).<\/td><\/tr><tr><td><strong>V\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh<\/strong><\/td><td>Chatbot h\u1ecfi \u0111\u00e1p v\u1ec1 quy \u0111\u1ecbnh nh\u00e2n s\u1ef1 n\u1ed9i b\u1ed9.<\/td><td>Tr\u1ee3 l\u00fd AI t\u1ef1 \u0111\u1ed9ng ki\u1ec3m tra l\u1ecbch, \u0111\u1eb7t ph\u00f2ng h\u1ecdp v\u00e0 g\u1eedi email x\u00e1c nh\u1eadn.<\/td><\/tr><tr><td><strong>H\u00ecnh t\u01b0\u1ee3ng<\/strong><\/td><td>Nh\u01b0 m\u1ed9t <strong>Th\u1ee7 th\u01b0<\/strong>: Tra c\u1ee9u s\u00e1ch \u0111\u1ec3 t\u00ecm th\u00f4ng tin b\u1ea1n c\u1ea7n.<\/td><td>Nh\u01b0 c\u1ed5ng <strong>USB-C<\/strong>: M\u1ed9t chu\u1ea9n k\u1ebft n\u1ed1i duy nh\u1ea5t cho m\u1ecdi thi\u1ebft b\u1ecb ngo\u1ea1i vi (chu\u1ed9t, ph\u00edm, \u1ed5 c\u1ee9ng).<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 id=\"M\u1ed1i_quan_h\u1ec7_t\u01b0\u01a1ng_h\u1ed7\"><a id=\"post-121597-_lbyq0fn59aeq\"><\/a>M\u1ed1i quan h\u1ec7 t\u01b0\u01a1ng h\u1ed7<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<p>Hai c\u00f4ng ngh\u1ec7 n\u00e0y kh\u00f4ng lo\u1ea1i tr\u1eeb nhau m\u00e0 th\u01b0\u1eddng k\u1ebft h\u1ee3p \u0111\u1ec3 t\u1ea1o ra c\u00e1c &#8220;AI Agent&#8221; m\u1ea1nh m\u1ebd:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>RAG gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 &#8220;Bi\u1ebft&#8221;:<\/strong> Cung c\u1ea5p ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng ch\u00ednh x\u00e1c.<\/li>\n\n\n\n<li><strong>MCP gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 &#8220;L\u00e0m&#8221;:<\/strong> Cung c\u1ea5p kh\u1ea3 n\u0103ng thao t\u00e1c.<\/li>\n<\/ul>\n\n\n\n<p><strong>V\u00ed d\u1ee5:<\/strong> M\u1ed9t h\u1ec7 th\u1ed1ng ch\u0103m s\u00f3c kh\u00e1ch h\u00e0ng c\u00f3 th\u1ec3 d\u00f9ng <strong>RAG<\/strong> \u0111\u1ec3 tra c\u1ee9u ch\u00ednh s\u00e1ch b\u1ea3o h\u00e0nh (t\u00ecm th\u00f4ng tin), sau \u0111\u00f3 d\u00f9ng <strong>MCP<\/strong> \u0111\u1ec3 truy c\u1eadp h\u1ec7 th\u1ed1ng CRM v\u00e0 t\u1ea1o phi\u1ebfu b\u1ea3o h\u00e0nh cho kh\u00e1ch (th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng).<\/p>\n\n\n\n<h4 id=\"Khi_n\u00e0o_n\u00ean_d\u00f9ng_c\u00f4ng_ngh\u1ec7_n\u00e0o?\"><a id=\"post-121597-_d7minyfra1vn\"><\/a>Khi n\u00e0o n\u00ean d\u00f9ng c\u00f4ng ngh\u1ec7 n\u00e0o?<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ch\u1ecdn RAG khi:<\/strong> Nhu c\u1ea7u ch\u00ednh l\u00e0 tra c\u1ee9u, t\u00f3m t\u1eaft t\u00e0i li\u1ec7u, gi\u1ea3i \u0111\u00e1p th\u1eafc m\u1eafc d\u1ef1a tr\u00ean kho tri th\u1ee9c t\u0129nh.<\/li>\n\n\n\n<li><strong>Ch\u1ecdn MCP khi:<\/strong> C\u1ea7n t\u00edch h\u1ee3p AI v\u1edbi nhi\u1ec1u h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m kh\u00e1c nhau \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a quy tr\u00ecnh ho\u1eb7c khi c\u1ea7n chu\u1ea9n h\u00f3a c\u00e1ch c\u00e1c AI Agent giao ti\u1ebfp v\u1edbi nhau.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Xem th\u00eam: <a href=\"https:\/\/tino.vn\/blog\/mcp-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">MCP l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t &amp; s\u1eed d\u1ee5ng MCP trong n8n chi ti\u1ebft<\/a><\/p>\n<\/blockquote>\n\n\n\n<h2 id=\"H\u01b0\u1edbng_d\u1eabn_c\u00e1ch_t\u1ea1o_RAG_tr\u00ean_n8n_(s\u1eed_d\u1ee5ng_m\u1eabu_c\u00f3_s\u1eb5n_\u0111\u01a1n_gi\u1ea3n)\"><a id=\"post-121597-_1dyxnk3ii7id\"><\/a>H\u01b0\u1edbng d\u1eabn c\u00e1ch t\u1ea1o RAG tr\u00ean n8n (s\u1eed d\u1ee5ng m\u1eabu c\u00f3 s\u1eb5n \u0111\u01a1n gi\u1ea3n)<\/h2>\n\n\n\n<h3 id=\"Kh\u1edfi_t\u1ea1o_t\u1eeb_m\u1eabu_&#8220;RAG_starter_template&#8221;\"><a id=\"post-121597-_n0ofsjmqfw95\"><\/a><strong>Kh\u1edfi t\u1ea1o t\u1eeb m\u1eabu &#8220;RAG starter template&#8221;<\/strong><\/h3>\n\n\n\n<p><strong>B\u01b0\u1edbc 1: <\/strong>T\u1ea1i giao di\u1ec7n t\u1ea1o workflow m\u1edbi, h\u00e3y t\u00ecm ki\u1ebfm t\u1eeb kh\u00f3a &#8220;<strong>RAG<\/strong>&#8221; trong thanh c\u00f4ng c\u1ee5 b\u00ean ph\u1ea3i.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"1265\" height=\"834\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-1.png\" alt=\"Kh\u1edfi t\u1ea1o t\u1eeb m\u1eabu &quot;RAG starter template&quot;\" class=\"wp-image-121598\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-1.png 1265w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-1-300x198.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-1-1024x675.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-1-768x506.png 768w\" sizes=\"(max-width: 1265px) 100vw, 1265px\" \/><figcaption class=\"wp-element-caption\"><strong>Kh\u1edfi t\u1ea1o t\u1eeb m\u1eabu &#8220;RAG starter template&#8221;<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 2: <\/strong>Ch\u1ecdn <strong>&#8220;RAG starter template&#8221;<\/strong>. B\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n sang m\u1ed9t tab m\u1edbi v\u1edbi workflow \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp s\u1eb5n c\u00e1c node c\u1ea7n thi\u1ebft, gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian thi\u1ebft l\u1eadp th\u1ee7 c\u00f4ng.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"1812\" height=\"839\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-2.png\" alt=\"Kh\u1edfi t\u1ea1o t\u1eeb m\u1eabu &quot;RAG starter template&quot;\" class=\"wp-image-121599\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-2.png 1812w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-2-300x139.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-2-1024x474.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-2-768x356.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-2-1536x711.png 1536w\" sizes=\"(max-width: 1812px) 100vw, 1812px\" \/><figcaption class=\"wp-element-caption\"><strong>Kh\u1edfi t\u1ea1o t\u1eeb m\u1eabu &#8220;RAG starter template&#8221;<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<h3 id=\"Gi\u1ea3i_th\u00edch_chi_ti\u1ebft_c\u1ea5u_tr\u00fac_Workflow\"><a id=\"post-121597-_a59rc0u8wbkc\"><\/a><strong>Gi\u1ea3i th\u00edch chi ti\u1ebft c\u1ea5u tr\u00fac Workflow<\/strong><\/h3>\n\n\n\n<h4 id=\"Lu\u1ed3ng_n\u1ea1p_d\u1eef_li\u1ec7u_(Load_Data_Flow)\"><a id=\"post-121597-_korheaxgjan\"><\/a>Lu\u1ed3ng n\u1ea1p d\u1eef li\u1ec7u (Load Data Flow)<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<p>Lu\u1ed3ng n\u00e0y th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng ti\u1ebfp nh\u1eadn t\u1ec7p tin t\u1eeb ng\u01b0\u1eddi d\u00f9ng v\u00e0 l\u01b0u tr\u1eef v\u00e0o b\u1ed9 nh\u1edb ng\u1eafn h\u1ea1n (In-Memory) \u0111\u1ec3 ph\u1ee5c v\u1ee5 cho phi\u00ean l\u00e0m vi\u1ec7c hi\u1ec7n t\u1ea1i.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"1200\" height=\"668\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-3.png\" alt=\"Lu\u1ed3ng n\u1ea1p d\u1eef li\u1ec7u (Load Data Flow)\" class=\"wp-image-121600\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-3.png 1200w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-3-300x167.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-3-1024x570.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-3-768x428.png 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><figcaption class=\"wp-element-caption\"><strong>Lu\u1ed3ng n\u1ea1p d\u1eef li\u1ec7u (Load Data Flow)<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Node n8n Form Trigger:<\/span><\/strong><\/p>\n\n\n\n<p>\u0110\u00e2y l\u00e0 c\u1ed5ng ti\u1ebfp nh\u1eadn d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o. Ng\u01b0\u1eddi d\u00f9ng s\u1ebd t\u1ea3i t\u1ec7p tin (PDF, Docx, Text) l\u00ean th\u00f4ng qua m\u1ed9t giao di\u1ec7n bi\u1ec3u m\u1eabu web (Form). T\u1ec7p tin nh\u1ecb ph\u00e2n sau \u0111\u00f3 \u0111\u01b0\u1ee3c chuy\u1ec3n tr\u1ef1c ti\u1ebfp \u0111\u1ebfn node x\u1eed l\u00fd ti\u1ebfp theo.<\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Node Simple Vector Store:<\/span><\/strong><\/p>\n\n\n\n<p>\u0110\u00e2y l\u00e0 node quan tr\u1ecdng nh\u1ea5t trong lu\u1ed3ng n\u1ea1p d\u1eef li\u1ec7u.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ch\u1ee9c n\u0103ng:<\/strong> \u0110\u00f3ng vai tr\u00f2 l\u00e0 m\u1ed9t c\u01a1 s\u1edf d\u1eef li\u1ec7u Vector \u0111\u01a1n gi\u1ea3n (th\u01b0\u1eddng l\u00e0 In-Memory Vector Store trong c\u00e1c b\u1ea3n demo) \u0111\u1ec3 l\u01b0u tr\u1eef ki\u1ebfn th\u1ee9c.<\/li>\n\n\n\n<li><strong>C\u01a1 ch\u1ebf x\u1eed l\u00fd:<\/strong> Thay v\u00ec x\u1eed l\u00fd tu\u1ea7n t\u1ef1 qua nhi\u1ec1u b\u01b0\u1edbc, node n\u00e0y s\u1eed d\u1ee5ng m\u1ed9t module document g\u1eafn k\u00e8m l\u00e0 <strong>Default Data Loader<\/strong>.\n<ul class=\"wp-block-list\">\n<li><strong>Default Data Loader:<\/strong> Th\u00e0nh ph\u1ea7n n\u00e0y \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u00e0o c\u1ed5ng \u0111\u1ea7u v\u00e0o <em>Document<\/em> c\u1ee7a node Simple Vector Store. Nhi\u1ec7m v\u1ee5 ch\u00ednh l\u00e0 nh\u1eadn t\u1ec7p tin t\u1eeb Trigger, t\u1ef1 \u0111\u1ed9ng \u0111\u1ecdc v\u00e0 tr\u00edch xu\u1ea5t n\u1ed9i dung v\u0103n b\u1ea3n, sau \u0111\u00f3 &#8220;m\u1edbm&#8221; d\u1eef li\u1ec7u s\u1ea1ch n\u00e0y v\u00e0o ngay b\u00ean trong Simple Vector Store \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c l\u01b0u tr\u1eef.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 id=\"Lu\u1ed3ng_truy_xu\u1ea5t_v\u00e0_h\u1ed9i_tho\u1ea1i_(Retriever_Flow)\"><a id=\"post-121597-_5wb66nxi3ged\"><\/a>Lu\u1ed3ng truy xu\u1ea5t v\u00e0 h\u1ed9i tho\u1ea1i (Retriever Flow)<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<p>Lu\u1ed3ng n\u00e0y \u0111\u1ea3m nhi\u1ec7m vi\u1ec7c t\u01b0\u01a1ng t\u00e1c v\u1edbi ng\u01b0\u1eddi d\u00f9ng v\u00e0 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi d\u1ef1a tr\u00ean d\u1eef li\u1ec7u v\u1eeba n\u1ea1p.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"1180\" height=\"664\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-4.png\" alt=\"Lu\u1ed3ng truy xu\u1ea5t v\u00e0 h\u1ed9i tho\u1ea1i (Retriever Flow)\" class=\"wp-image-121601\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-4.png 1180w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-4-300x169.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-4-1024x576.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-4-768x432.png 768w\" sizes=\"(max-width: 1180px) 100vw, 1180px\" \/><figcaption class=\"wp-element-caption\"><strong>Lu\u1ed3ng truy xu\u1ea5t v\u00e0 h\u1ed9i tho\u1ea1i (Retriever Flow)<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Node &#8220;When chat message received&#8221; (Chat Trigger):<\/span><\/strong><\/p>\n\n\n\n<p>Kh\u1edfi \u0111\u1ed9ng quy tr\u00ecnh khi c\u00f3 tin nh\u1eafn m\u1edbi t\u1eeb giao di\u1ec7n chat (c\u00f3 th\u1ec3 thay th\u1ebf t\u00f9y v\u00e0o tr\u01b0\u1eddng h\u1edbp s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf).<\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Node &#8220;AI Agent&#8221;:<\/span><\/strong><\/p>\n\n\n\n<p>Trung t\u00e2m \u0111i\u1ec1u khi\u1ec3n c\u1ee7a Chatbot. Node n\u00e0y bao g\u1ed3m <strong>OpenAI Chat Model<\/strong> v\u00e0 <strong>Simple Vector Store<\/strong> tool.<\/p>\n\n\n\n<p>Khi AI Agent c\u1ea7n th\u00f4ng tin, tool n\u00e0y s\u1ebd t\u00ecm ki\u1ebfm c\u00e1c \u0111o\u1ea1n v\u0103n b\u1ea3n t\u01b0\u01a1ng \u0111\u1ed3ng trong b\u1ed9 nh\u1edb v\u00e0 tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 cho AI x\u1eed l\u00fd.<\/p>\n\n\n\n<h4 id=\"Th\u00e0nh_ph\u1ea7n_c\u1ed1t_l\u00f5i_d\u00f9ng_chung:_Embeddings_OpenAI\"><a id=\"post-121597-_lwf0xxyrw7cv\"><\/a>Th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i d\u00f9ng chung: Embeddings OpenAI<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<p>\u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt b\u1eaft bu\u1ed9c \u0111\u1ec3 hai lu\u1ed3ng c\u00f3 th\u1ec3 &#8220;hi\u1ec3u&#8221; nhau.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>V\u1ecb tr\u00ed v\u00e0 k\u1ebft n\u1ed1i:<\/strong> Node <strong>Embeddings OpenAI<\/strong> n\u1eb1m \u1edf ph\u00eda d\u01b0\u1edbi v\u00e0 k\u1ebft n\u1ed1i v\u00e0o c\u1ed5ng <em>Embeddings<\/em> c\u1ee7a c\u1ea3 node <strong>Simple Vector Store<\/strong> b\u00ean <strong>Load Data Flow<\/strong> v\u00e0 <strong>Retriever Flow<\/strong>.<\/li>\n\n\n\n<li><strong>Vai tr\u00f2:<\/strong> Vi\u1ec7c s\u1eed d\u1ee5ng chung m\u1ed9t node \u0111\u1ea3m b\u1ea3o r\u1eb1ng thu\u1eadt to\u00e1n m\u00e3 h\u00f3a d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o v\u00e0 thu\u1eadt to\u00e1n m\u00e3 h\u00f3a c\u00e2u h\u1ecfi truy v\u1ea5n l\u00e0 ho\u00e0n to\u00e0n gi\u1ed1ng nhau. N\u1ebfu s\u1eed d\u1ee5ng hai node Embeddings kh\u00e1c nhau, h\u1ec7 th\u1ed1ng s\u1ebd kh\u00f4ng th\u1ec3 t\u00ecm th\u1ea5y d\u1eef li\u1ec7u ch\u00ednh x\u00e1c do s\u1ef1 sai l\u1ec7ch v\u1ec1 kh\u00f4ng gian s\u1ed1 h\u1ecdc vector.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"1183\" height=\"672\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-5.png\" alt=\"Th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i d\u00f9ng chung: Embeddings OpenAI\" class=\"wp-image-121602\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-5.png 1183w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-5-300x170.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-5-1024x582.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/word-image-121597-5-768x436.png 768w\" sizes=\"(max-width: 1183px) 100vw, 1183px\" \/><figcaption class=\"wp-element-caption\"><strong>Th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i d\u00f9ng chung: Embeddings OpenAI<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<h2 id=\"M\u1ed9t_s\u1ed1_l\u01b0u_\u00fd_\u0111\u1ec3_t\u1ed1i_\u01b0u_h\u00f3a_hi\u1ec7u_su\u1ea5t_RAG_tr\u00ean_n8n\"><a id=\"post-121597-_2sbriujl3md8\"><\/a>M\u1ed9t s\u1ed1 l\u01b0u \u00fd \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t RAG tr\u00ean n8n<\/h2>\n\n\n\n<p>Vi\u1ec7c k\u1ebft n\u1ed1i c\u00e1c node th\u00e0nh c\u00f4ng ch\u1ec9 l\u00e0 b\u01b0\u1edbc kh\u1edfi \u0111\u1ea7u. \u0110\u1ec3 h\u1ec7 th\u1ed1ng RAG ho\u1ea1t \u0111\u1ed9ng th\u00f4ng minh, ph\u1ea3n h\u1ed3i nhanh v\u00e0 ch\u00ednh x\u00e1c, ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb c\u1ea7n ch\u00fa tr\u1ecdng \u0111\u1ebfn c\u00e1c y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt sau \u0111\u00e2y:<\/p>\n\n\n\n<h3 id=\"Chi\u1ebfn_l\u01b0\u1ee3c_ph\u00e2n_\u0111o\u1ea1n_v\u0103n_b\u1ea3n_(Chunking_Strategy)\"><strong>Chi\u1ebfn l\u01b0\u1ee3c ph\u00e2n \u0111o\u1ea1n v\u0103n b\u1ea3n (Chunking Strategy)<\/strong><\/h3>\n\n\n\n<p>K\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c \u0111o\u1ea1n v\u0103n b\u1ea3n (Chunk size) \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng c\u00e2u tr\u1ea3 l\u1eddi.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>K\u00edch th\u01b0\u1edbc qu\u00e1 nh\u1ecf:<\/strong> AI c\u00f3 th\u1ec3 m\u1ea5t ng\u1eef c\u1ea3nh c\u1ea7n thi\u1ebft \u0111\u1ec3 hi\u1ec3u tr\u1ecdn v\u1eb9n \u00fd ngh\u0129a.<\/li>\n\n\n\n<li><strong>K\u00edch th\u01b0\u1edbc qu\u00e1 l\u1edbn:<\/strong> D\u1eef li\u1ec7u t\u00ecm \u0111\u01b0\u1ee3c s\u1ebd ch\u1ee9a nhi\u1ec1u th\u00f4ng tin nhi\u1ec5u kh\u00f4ng li\u00ean quan, l\u00e0m gi\u1ea3m \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e2u tr\u1ea3 l\u1eddi.<\/li>\n\n\n\n<li><strong>Gi\u1ea3i ph\u00e1p:<\/strong> Trong n8n, h\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi <em>Chunk Size<\/em> kho\u1ea3ng 500-1000 token v\u00e0 quan tr\u1ecdng l\u00e0 thi\u1ebft l\u1eadp <em>Chunk Overlap<\/em> (\u0111\u1ed9 ch\u1ed3ng l\u1eb7p) kho\u1ea3ng 10-20%. S\u1ef1 ch\u1ed3ng l\u1eb7p gi\u00fap gi\u1eef m\u1ea1ch li\u00ean k\u1ebft gi\u1eefa c\u00e1c \u0111o\u1ea1n c\u1eaft, \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 th\u00f4ng tin quan tr\u1ecdng n\u00e0o b\u1ecb \u0111\u1ee9t g\u00e3y gi\u1eefa ch\u1eebng.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"Ch\u1ea5t_l\u01b0\u1ee3ng_d\u1eef_li\u1ec7u_\u0111\u1ea7u_v\u00e0o\"><strong>Ch\u1ea5t l\u01b0\u1ee3ng d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o<\/strong><\/h3>\n\n\n\n<p>H\u1ec7 th\u1ed1ng RAG ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean t\u1eafc &#8220;R\u00e1c v\u00e0o, r\u00e1c ra&#8221; (Garbage In, Garbage Out). Tr\u01b0\u1edbc khi n\u1ea1p t\u00e0i li\u1ec7u v\u00e0o node <em>Simple Vector Store<\/em>, h\u00e3y \u0111\u1ea3m b\u1ea3o lo\u1ea1i b\u1ecf c\u00e1c th\u00e0nh ph\u1ea7n kh\u00f4ng c\u1ea7n thi\u1ebft nh\u01b0 ti\u00eau \u0111\u1ec1 trang, s\u1ed1 trang, header\/footer l\u1eb7p l\u1ea1i ho\u1eb7c c\u00e1c k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t g\u00e2y nhi\u1ec5u. D\u1eef li\u1ec7u c\u00e0ng s\u1ea1ch, kh\u1ea3 n\u0103ng t\u00ecm ki\u1ebfm c\u1ee7a Vector Store c\u00e0ng ch\u00ednh x\u00e1c.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-6.png\" alt=\"M\u1ed9t s\u1ed1 l\u01b0u \u00fd \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t RAG tr\u00ean n8n\" class=\"wp-image-121609\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-6.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-6-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>M\u1ed9t s\u1ed1 l\u01b0u \u00fd \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t RAG tr\u00ean n8n<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"T\u1ed1i_\u01b0u_h\u00f3a_c\u00e2u_l\u1ec7nh_h\u1ec7_th\u1ed1ng\"><strong>T\u1ed1i \u01b0u h\u00f3a c\u00e2u l\u1ec7nh h\u1ec7 th\u1ed1ng<\/strong><\/h3>\n\n\n\n<p>Trong node <em>AI Agent<\/em>, ph\u1ea7n &#8220;System Message&#8221; \u0111\u00f3ng vai tr\u00f2 \u0111\u1ecbnh h\u01b0\u1edbng h\u00e0nh vi cho Chatbot. H\u00e3y thi\u1ebft l\u1eadp m\u1ed9t ch\u1ec9 th\u1ecb r\u00f5 r\u00e0ng v\u00e0 nghi\u00eam ng\u1eb7t.<\/p>\n\n\n\n<p><strong>V\u00ed d\u1ee5:<\/strong> <em>&#8220;B\u1ea1n l\u00e0 tr\u1ee3 l\u00fd AI h\u1eefu \u00edch. Ch\u1ec9 \u0111\u01b0\u1ee3c tr\u1ea3 l\u1eddi d\u1ef1a tr\u00ean th\u00f4ng tin ng\u1eef c\u1ea3nh \u0111\u01b0\u1ee3c cung c\u1ea5p. N\u1ebfu kh\u00f4ng t\u00ecm th\u1ea5y th\u00f4ng tin trong t\u00e0i li\u1ec7u, h\u00e3y tr\u1ea3 l\u1eddi r\u1eb1ng t\u00f4i kh\u00f4ng bi\u1ebft, tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ef1 b\u1ecba ra th\u00f4ng tin.&#8221;<\/em> Ch\u1ec9 th\u1ecb n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng \u1ea3o gi\u00e1c (hallucination) th\u01b0\u1eddng g\u1eb7p \u1edf c\u00e1c m\u00f4 h\u00ecnh ng\u00f4n ng\u1eef l\u1edbn.<\/p>\n\n\n\n<h3 id=\"L\u1ef1a_ch\u1ecdn_m\u00f4_h\u00ecnh_Embeddings_ph\u00f9_h\u1ee3p\"><strong>L\u1ef1a ch\u1ecdn m\u00f4 h\u00ecnh Embeddings ph\u00f9 h\u1ee3p<\/strong><\/h3>\n\n\n\n<p>D\u00f9 <em>OpenAI Embeddings<\/em> l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn, nh\u01b0ng \u0111\u1ed1i v\u1edbi c\u00e1c t\u00e0i li\u1ec7u ti\u1ebfng Vi\u1ec7t chuy\u00ean ng\u00e0nh, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 c\u00e2n nh\u1eafc c\u00e1c m\u00f4 h\u00ecnh kh\u00e1c h\u1ed7 tr\u1ee3 \u0111a ng\u00f4n ng\u1eef t\u1ed1t h\u01a1n. Tuy nhi\u00ean, c\u1ea7n l\u01b0u \u00fd nguy\u00ean t\u1eafc b\u1ea5t di b\u1ea5t d\u1ecbch: M\u00f4 h\u00ecnh d\u00f9ng \u0111\u1ec3 m\u00e3 h\u00f3a khi n\u1ea1p d\u1eef li\u1ec7u v\u00e0 m\u00f4 h\u00ecnh d\u00f9ng \u0111\u1ec3 truy v\u1ea5n ph\u1ea3i l\u00e0 m\u1ed9t.<\/p>\n\n\n\n<h2 id=\"\u1ee8ng_d\u1ee5ng_th\u1ef1c_t\u1ebf_c\u1ee7a_RAG_v\u1edbi_n8n\"><a id=\"post-121597-_ghj5wrfyhco1\"><\/a>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a RAG v\u1edbi n8n<\/h2>\n\n\n\n<p>Kh\u1ea3 n\u0103ng t\u00f9y bi\u1ebfn linh ho\u1ea1t c\u1ee7a n8n cho ph\u00e9p tri\u1ec3n khai k\u1ef9 thu\u1eadt RAG v\u00e0o nhi\u1ec1u quy tr\u00ecnh nghi\u1ec7p v\u1ee5 kh\u00e1c nhau trong doanh nghi\u1ec7p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tr\u1ee3 l\u00fd \u1ea3o h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng:<\/strong> T\u1ef1 \u0111\u1ed9ng tr\u1ea3 l\u1eddi c\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p d\u1ef1a tr\u00ean kho t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng, ch\u00ednh s\u00e1ch b\u1ea3o h\u00e0nh ho\u1eb7c catalog s\u1ea3n ph\u1ea9m. H\u1ec7 th\u1ed1ng n\u00e0y gi\u00fap gi\u1ea3m t\u1ea3i cho \u0111\u1ed9i ng\u0169 nh\u00e2n s\u1ef1 v\u00e0 ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c 24\/7.<\/li>\n\n\n\n<li><strong>H\u1ec7 th\u1ed1ng tra c\u1ee9u quy tr\u00ecnh n\u1ed9i b\u1ed9:<\/strong> Nh\u00e2n vi\u00ean m\u1edbi th\u01b0\u1eddng m\u1ea5t nhi\u1ec1u th\u1eddi gian \u0111\u1ec3 t\u00ecm hi\u1ec3u quy \u0111\u1ecbnh c\u00f4ng ty. M\u1ed9t Chatbot RAG t\u00edch h\u1ee3p tr\u00ean Slack ho\u1eb7c Microsoft Teams (qua n8n) c\u00f3 th\u1ec3 gi\u00fap nh\u00e2n vi\u00ean tra c\u1ee9u nhanh th\u00f4ng tin v\u1ec1 quy tr\u00ecnh xin ngh\u1ec9 ph\u00e9p, ph\u00fac l\u1ee3i, hay quy \u0111\u1ecbnh b\u1ea3o m\u1eadt ch\u1ec9 trong v\u00e0i gi\u00e2y.<\/li>\n\n\n\n<li><strong>Ph\u00e2n t\u00edch h\u1ee3p \u0111\u1ed3ng v\u00e0 v\u0103n b\u1ea3n ph\u00e1p l\u00fd:<\/strong> N\u1ea1p c\u00e1c t\u1ec7p PDF h\u1ee3p \u0111\u1ed3ng d\u00e0i h\u00e0ng tr\u0103m trang v\u00e0o h\u1ec7 th\u1ed1ng. Sau \u0111\u00f3, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111\u1eb7t c\u00e1c c\u00e2u h\u1ecfi c\u1ee5 th\u1ec3 nh\u01b0 <em>&#8220;\u0110i\u1ec1u kho\u1ea3n ph\u1ea1t ch\u1eadm thanh to\u00e1n l\u00e0 bao nhi\u00eau?&#8221;<\/em> ho\u1eb7c <em>&#8220;Th\u1eddi h\u1ea1n hi\u1ec7u l\u1ef1c c\u1ee7a h\u1ee3p \u0111\u1ed3ng l\u00e0 khi n\u00e0o?&#8221;<\/em> \u0111\u1ec3 AI tr\u00edch xu\u1ea5t th\u00f4ng tin ch\u00ednh x\u00e1c.<\/li>\n\n\n\n<li><strong>T\u00f3m t\u1eaft v\u00e0 khai th\u00e1c tin t\u1ee9c th\u1ecb tr\u01b0\u1eddng:<\/strong> K\u1ebft h\u1ee3p node <em>HTTP Request<\/em> \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng c\u00e0o n\u1ed9i dung t\u1eeb c\u00e1c trang b\u00e1o \u0111i\u1ec7n t\u1eed, n\u1ea1p v\u00e0o Vector Store v\u00e0 y\u00eau c\u1ea7u AI t\u1ed5ng h\u1ee3p c\u00e1c xu h\u01b0\u1edbng m\u1edbi nh\u1ea5t h\u00e0ng ng\u00e0y g\u1eedi v\u1ec1 email.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-7.png\" alt=\"\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a RAG v\u1edbi n8n\" class=\"wp-image-121610\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-7.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2025\/12\/rag-la-gi-7-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a RAG v\u1edbi n8n<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"K\u1ebft_lu\u1eadn\"><a id=\"post-121597-_8occmrbswk1g\"><\/a><strong>K\u1ebft lu\u1eadn<\/strong><\/h3>\n\n\n\n<p>S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa RAG v\u00e0 n8n \u0111\u00e3 m\u1edf ra m\u1ed9t k\u1ef7 nguy\u00ean m\u1edbi cho vi\u1ec7c t\u1ef1 \u0111\u1ed9ng h\u00f3a quy tr\u00ecnh x\u1eed l\u00fd th\u00f4ng tin. Kh\u00f4ng c\u00f2n b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi nh\u1eefng r\u00e0o c\u1ea3n k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p, gi\u1edd \u0111\u00e2y b\u1ea5t k\u1ef3 doanh nghi\u1ec7p n\u00e0o c\u0169ng c\u00f3 th\u1ec3 t\u1ef1 x\u00e2y d\u1ef1ng cho m\u00ecnh m\u1ed9t tr\u1ee3 l\u00fd AI th\u00f4ng minh, am hi\u1ec3u d\u1eef li\u1ec7u n\u1ed9i b\u1ed9 v\u00e0 ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng m\u1ec7t m\u1ecfi. Gi\u1ea3i ph\u00e1p n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian tra c\u1ee9u m\u00e0 c\u00f2n n\u00e2ng cao \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 ch\u00ednh x\u00e1c trong vi\u1ec7c ra quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n<h2 id=\"Nh\u1eefng_c\u00e2u_h\u1ecfi_th\u01b0\u1eddng_g\u1eb7p\">Nh\u1eefng c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"T\u00f4i_c\u00f3_c\u1ea7n_bi\u1ebft_l\u1eadp_tr\u00ecnh_\u0111\u1ec3_x\u00e2y_d\u1ef1ng_RAG_tr\u00ean_n8n_kh\u00f4ng?\">T\u00f4i c\u00f3 c\u1ea7n bi\u1ebft l\u1eadp tr\u00ecnh \u0111\u1ec3 x\u00e2y d\u1ef1ng RAG tr\u00ean n8n kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>Kh\u00f4ng nh\u1ea5t thi\u1ebft. n8n cung c\u1ea5p giao di\u1ec7n k\u00e9o th\u1ea3 tr\u1ef1c quan v\u00e0 c\u00e1c m\u1eabu (Template) c\u00f3 s\u1eb5n. Tuy nhi\u00ean, vi\u1ec7c hi\u1ec3u c\u01a1 b\u1ea3n v\u1ec1 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u JSON s\u1ebd gi\u00fap qu\u00e1 tr\u00ecnh t\u00f9y ch\u1ec9nh thu\u1eadn l\u1ee3i h\u01a1n.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"Chi_ph\u00ed_\u0111\u1ec3_v\u1eadn_h\u00e0nh_h\u1ec7_th\u1ed1ng_RAG_n\u00e0y_l\u00e0_bao_nhi\u00eau?\">Chi ph\u00ed \u0111\u1ec3 v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng RAG n\u00e0y l\u00e0 bao nhi\u00eau?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>Chi ph\u00ed ch\u1ee7 y\u1ebfu \u0111\u1ebfn t\u1eeb vi\u1ec7c s\u1eed d\u1ee5ng API c\u1ee7a OpenAI (ho\u1eb7c nh\u00e0 cung c\u1ea5p AI kh\u00e1c) v\u00e0 chi ph\u00ed l\u01b0u tr\u1eef Vector Database. B\u1ea3n th\u00e2n n8n c\u00f3 phi\u00ean b\u1ea3n Self-hosted mi\u1ec5n ph\u00ed n\u1ebfu ng\u01b0\u1eddi d\u00f9ng t\u1ef1 c\u00e0i \u0111\u1eb7t tr\u00ean m\u00e1y ch\u1ee7 c\u00e1 nh\u00e2n.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"D\u1eef_li\u1ec7u_c\u1ee7a_t\u00f4i_c\u00f3_\u0111\u01b0\u1ee3c_b\u1ea3o_m\u1eadt_kh\u00f4ng?\">D\u1eef li\u1ec7u c\u1ee7a t\u00f4i c\u00f3 \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>Khi s\u1eed d\u1ee5ng n8n b\u1ea3n Self-hosted, d\u1eef li\u1ec7u ho\u00e0n to\u00e0n n\u1eb1m trong quy\u1ec1n ki\u1ec3m so\u00e1t c\u1ee7a doanh nghi\u1ec7p. Tuy nhi\u00ean, khi g\u1eedi d\u1eef li\u1ec7u \u0111\u1ebfn OpenAI \u0111\u1ec3 x\u1eed l\u00fd, th\u00f4ng tin s\u1ebd tu\u00e2n theo ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt c\u1ee7a OpenAI (th\u01b0\u1eddng l\u00e0 kh\u00f4ng d\u00f9ng d\u1eef li\u1ec7u API \u0111\u1ec3 hu\u1ea5n luy\u1ec7n model, nh\u01b0ng c\u1ea7n ki\u1ec3m tra k\u1ef9 ch\u00ednh s\u00e1ch hi\u1ec7n h\u00e0nh).<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"T\u1ea1i_sao_Chatbot_tr\u1ea3_l\u1eddi_sai_ho\u1eb7c_kh\u00f4ng_t\u00ecm_th\u1ea5y_th\u00f4ng_tin?\">T\u1ea1i sao Chatbot tr\u1ea3 l\u1eddi sai ho\u1eb7c kh\u00f4ng t\u00ecm th\u1ea5y th\u00f4ng tin?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>Nguy\u00ean nh\u00e2n th\u01b0\u1eddng do <em>Chunk Size<\/em> ch\u01b0a h\u1ee3p l\u00fd ho\u1eb7c d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o qu\u00e1 nhi\u1ec5u. H\u00e3y th\u1eed \u0111i\u1ec1u ch\u1ec9nh l\u1ea1i c\u00e1ch chia nh\u1ecf v\u0103n b\u1ea3n ho\u1eb7c ki\u1ec3m tra l\u1ea1i n\u1ed9i dung file ngu\u1ed3n.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"T\u00f4i_c\u00f3_th\u1ec3_s\u1eed_d\u1ee5ng_c\u00e1c_m\u00f4_h\u00ecnh_AI_mi\u1ec5n_ph\u00ed_(Local_LLM)_kh\u00f4ng?\">T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c m\u00f4 h\u00ecnh AI mi\u1ec5n ph\u00ed (Local LLM) kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>C\u00f3. n8n h\u1ed7 tr\u1ee3 t\u00edch h\u1ee3p v\u1edbi Ollama. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 ch\u1ea1y c\u00e1c m\u00f4 h\u00ecnh nh\u01b0 Llama 3 ho\u1eb7c Mistral ngay tr\u00ean m\u00e1y ch\u1ee7 c\u1ee7a m\u00ecnh \u0111\u1ec3 ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"H\u1ec7_th\u1ed1ng_c\u00f3_h\u1ed7_tr\u1ee3_ti\u1ebfng_Vi\u1ec7t_t\u1ed1t_kh\u00f4ng?\">H\u1ec7 th\u1ed1ng c\u00f3 h\u1ed7 tr\u1ee3 ti\u1ebfng Vi\u1ec7t t\u1ed1t kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>C\u00f3, nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng ph\u1ee5 thu\u1ed9c l\u1edbn v\u00e0o m\u00f4 h\u00ecnh Embeddings v\u00e0 Chat Model. C\u00e1c model hi\u1ec7n \u0111\u1ea1i nh\u01b0 GPT-4o x\u1eed l\u00fd ti\u1ebfng Vi\u1ec7t r\u1ea5t m\u01b0\u1ee3t m\u00e0.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"T\u00f4i c\u00f3 c\u1ea7n bi\u1ebft l\u1eadp tr\u00ecnh \u0111\u1ec3 x\u00e2y d\u1ef1ng RAG tr\u00ean n8n kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Kh\u00f4ng nh\u1ea5t thi\u1ebft. n8n cung c\u1ea5p giao di\u1ec7n k\u00e9o th\u1ea3 tr\u1ef1c quan v\u00e0 c\u00e1c m\u1eabu (Template) c\u00f3 s\u1eb5n. Tuy nhi\u00ean, vi\u1ec7c hi\u1ec3u c\u01a1 b\u1ea3n v\u1ec1 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u JSON s\u1ebd gi\u00fap qu\u00e1 tr\u00ecnh t\u00f9y ch\u1ec9nh thu\u1eadn l\u1ee3i h\u01a1n.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Chi ph\u00ed \u0111\u1ec3 v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng RAG n\u00e0y l\u00e0 bao nhi\u00eau?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Chi ph\u00ed ch\u1ee7 y\u1ebfu \u0111\u1ebfn t\u1eeb vi\u1ec7c s\u1eed d\u1ee5ng API c\u1ee7a OpenAI (ho\u1eb7c nh\u00e0 cung c\u1ea5p AI kh\u00e1c) v\u00e0 chi ph\u00ed l\u01b0u tr\u1eef Vector Database. B\u1ea3n th\u00e2n n8n c\u00f3 phi\u00ean b\u1ea3n Self-hosted mi\u1ec5n ph\u00ed n\u1ebfu ng\u01b0\u1eddi d\u00f9ng t\u1ef1 c\u00e0i \u0111\u1eb7t tr\u00ean m\u00e1y ch\u1ee7 c\u00e1 nh\u00e2n.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"D\u1eef li\u1ec7u c\u1ee7a t\u00f4i c\u00f3 \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Khi s\u1eed d\u1ee5ng n8n b\u1ea3n Self-hosted, d\u1eef li\u1ec7u ho\u00e0n to\u00e0n n\u1eb1m trong quy\u1ec1n ki\u1ec3m so\u00e1t c\u1ee7a doanh nghi\u1ec7p. Tuy nhi\u00ean, khi g\u1eedi d\u1eef li\u1ec7u \u0111\u1ebfn OpenAI \u0111\u1ec3 x\u1eed l\u00fd, th\u00f4ng tin s\u1ebd tu\u00e2n theo ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt c\u1ee7a OpenAI (th\u01b0\u1eddng l\u00e0 kh\u00f4ng d\u00f9ng d\u1eef li\u1ec7u API \u0111\u1ec3 hu\u1ea5n luy\u1ec7n model, nh\u01b0ng c\u1ea7n ki\u1ec3m tra k\u1ef9 ch\u00ednh s\u00e1ch hi\u1ec7n h\u00e0nh).<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"T\u1ea1i sao Chatbot tr\u1ea3 l\u1eddi sai ho\u1eb7c kh\u00f4ng t\u00ecm th\u1ea5y th\u00f4ng tin?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Nguy\u00ean nh\u00e2n th\u01b0\u1eddng do <em>Chunk Size<\/em> ch\u01b0a h\u1ee3p l\u00fd ho\u1eb7c d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o qu\u00e1 nhi\u1ec5u. H\u00e3y th\u1eed \u0111i\u1ec1u ch\u1ec9nh l\u1ea1i c\u00e1ch chia nh\u1ecf v\u0103n b\u1ea3n ho\u1eb7c ki\u1ec3m tra l\u1ea1i n\u1ed9i dung file ngu\u1ed3n.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c m\u00f4 h\u00ecnh AI mi\u1ec5n ph\u00ed (Local LLM) kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>C\u00f3. n8n h\u1ed7 tr\u1ee3 t\u00edch h\u1ee3p v\u1edbi Ollama. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 ch\u1ea1y c\u00e1c m\u00f4 h\u00ecnh nh\u01b0 Llama 3 ho\u1eb7c Mistral ngay tr\u00ean m\u00e1y ch\u1ee7 c\u1ee7a m\u00ecnh \u0111\u1ec3 ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"H\u1ec7 th\u1ed1ng c\u00f3 h\u1ed7 tr\u1ee3 ti\u1ebfng Vi\u1ec7t t\u1ed1t kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>C\u00f3, nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng ph\u1ee5 thu\u1ed9c l\u1edbn v\u00e0o m\u00f4 h\u00ecnh Embeddings v\u00e0 Chat Model. C\u00e1c model hi\u1ec7n \u0111\u1ea1i nh\u01b0 GPT-4o x\u1eed l\u00fd ti\u1ebfng Vi\u1ec7t r\u1ea5t m\u01b0\u1ee3t m\u00e0.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>D\u00f9 doanh nghi\u1ec7p c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng AI v\u00e0o quy tr\u00ecnh v\u1eadn h\u00e0nh nh\u01b0ng v\u1eabn g\u1eb7p ph\u1ea3i m\u1ed9t th\u00e1ch th\u1ee9c, \u0111\u00f3 l\u00e0 thi\u1ebfu d\u1eef li\u1ec7u c\u1eadp nh\u1eadt theo th\u1eddi gian th\u1ef1c ho\u1eb7c thi\u1ebfu ki\u1ebfn th\u1ee9c chuy\u00ean s\u00e2u v\u1ec1 doanh nghi\u1ec7p. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 nan gi\u1ea3i n\u00e0y, k\u1ef9 thu\u1eadt RAG \u0111\u00e3 ra \u0111\u1eddi v\u00e0 [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":121611,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7397],"tags":[7483],"class_list":["post-121597","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-n8n","tag-rag"],"_links":{"self":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/121597","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/comments?post=121597"}],"version-history":[{"count":4,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/121597\/revisions"}],"predecessor-version":[{"id":121614,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/121597\/revisions\/121614"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media\/121611"}],"wp:attachment":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media?parent=121597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/categories?post=121597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/tags?post=121597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}