{"id":8284,"date":"2026-06-09T13:58:02","date_gmt":"2026-06-09T05:58:02","guid":{"rendered":"https:\/\/ab123.xyz\/?p=8284"},"modified":"2026-06-09T13:58:02","modified_gmt":"2026-06-09T05:58:02","slug":"meta-llama-3-1-405b-fine-tuning-on-custom-dataset-%e4%b8%93%e4%b8%9a%e5%be%ae%e8%b0%83%e5%b7%a5%e5%85%b7%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/ab123.xyz\/?p=8284","title":{"rendered":"Meta Llama 3.1 405B Fine-Tuning on Custom Dataset \u4e13\u4e1a\u5fae\u8c03\u5de5\u5177\u4ecb\u7ecd"},"content":{"rendered":"<p>\u5728\u5927\u578b\u8bed\u8a00\u6a21\u578b\uff08LLM\uff09\u5feb\u901f\u8fed\u4ee3\u7684\u4eca\u5929\uff0c\u5bf9 Meta \u6700\u65b0\u53d1\u5e03\u7684 Llama 3.1 405B \u6a21\u578b\u8fdb\u884c\u81ea\u5b9a\u4e49\u6570\u636e\u96c6\u5fae\u8c03\u5df2\u6210\u4e3a\u4f01\u4e1a\u548c\u7814\u7a76\u8005\u63d0\u5347\u7279\u5b9a\u9886\u57df\u6027\u80fd\u7684\u5173\u952e\u6280\u672f\u3002\u672c\u7bc7\u6587\u7ae0\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u4e00\u6b3e\u4e13\u4e3a\u9ad8\u6548\u5fae\u8c03 Llama 3.1 405B \u800c\u751f\u7684\u667a\u80fd\u5de5\u5177\u2014\u2014<strong>Unsloth<\/strong>\uff0c\u5b83\u51ed\u501f\u6781\u81f4\u7684\u663e\u5b58\u4f18\u5316\u548c\u8bad\u7ec3\u901f\u5ea6\uff0c\u8ba9\u539f\u672c\u9700\u8981\u591a\u4e2a\u9ad8\u7aef GPU \u7684\u4efb\u52a1\u53d8\u5f97\u89e6\u624b\u53ef\u53ca\u3002\u8be5\u5de5\u5177\u7684\u5b98\u65b9\u7f51\u7ad9\u5728\u6b64\uff1a<a href=\"https:\/\/unsloth.ai\" target=\"_blank\">\u5b98\u65b9\u7f51\u7ad9<\/a>\u3002<\/p>\n<h2>\u6838\u5fc3\u529f\u80fd\u4e0e\u67b6\u6784\u7279\u70b9<\/h2>\n<p>Unsloth \u9488\u5bf9 Llama 3.1 405B \u7684\u67b6\u6784\u8fdb\u884c\u4e86\u6df1\u5ea6\u91cd\u6784\uff0c\u4f7f\u5176\u80fd\u591f\u5728\u6d88\u8d39\u7ea7\u786c\u4ef6\u4e0a\u5b8c\u6210\u5927\u89c4\u6a21\u5fae\u8c03\u3002\u5176\u4e3b\u8981\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>LoRA \/ QLoRA \u652f\u6301<\/strong>\uff1a\u901a\u8fc7\u4f4e\u79e9\u9002\u914d\u6280\u672f\uff0c\u4ec5\u9700\u8bad\u7ec3\u6a21\u578b\u53c2\u6570\u7684\u4e00\u5c0f\u90e8\u5206\uff0c\u5927\u5e45\u964d\u4f4e\u663e\u5b58\u5360\u7528\uff08405B \u6a21\u578b\u53ef\u964d\u81f3 48GB \u4ee5\u4e0b\uff09\u3002<\/li>\n<li><strong>\u52a8\u6001\u91cf\u5316\u611f\u77e5\u8bad\u7ec3<\/strong>\uff1a\u5185\u7f6e 4-bit \u548c 8-bit \u91cf\u5316\uff0c\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\u81ea\u52a8\u4fdd\u6301\u7cbe\u5ea6\u5e73\u8861\uff0c\u907f\u514d\u6a21\u578b\u5931\u771f\u3002<\/li>\n<li><strong>\u4e00\u952e\u5f0f\u6570\u636e\u9884\u5904\u7406<\/strong>\uff1a\u81ea\u52a8\u5c06\u81ea\u5b9a\u4e49\u6570\u636e\u96c6\uff08JSON\u3001CSV\u3001Alpaca 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Hugging Face \u539f\u751f\u7684 SFTTrainer \u6216 Axolotl\uff0cUnsloth \u5728\u4ee5\u4e0b\u65b9\u9762\u5177\u6709\u660e\u663e\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li><strong>\u663e\u5b58\u6548\u7387<\/strong>\uff1a\u540c\u7b49\u89c4\u6a21\u4e0b\u663e\u5b58\u9700\u6c42\u964d\u4f4e 60% \u4ee5\u4e0a\uff0c\u5fae\u8c03 405B \u6a21\u578b\u4ec5\u9700 48GB \u663e\u5b58\uff08\u5176\u4ed6\u5de5\u5177\u901a\u5e38\u9700\u8981 240GB+\uff09\u3002<\/li>\n<li><strong>\u8bad\u7ec3\u901f\u5ea6<\/strong>\uff1a\u4f7f\u7528 Flash Attention 2 \u548c\u68af\u5ea6\u68c0\u67e5\u70b9\u6280\u672f\uff0c\u6bcf\u6b65\u8fed\u4ee3\u65f6\u95f4\u7f29\u77ed 40%\u3002<\/li>\n<li><strong>\u65b0\u624b\u53cb\u597d\u5ea6<\/strong>\uff1a\u63d0\u4f9b Web UI \u754c\u9762\uff08\u57fa\u4e8e 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\u6a21\u578b\u7684\u5f71\u54cd\uff0c\u65e0\u9700\u5927\u6279\u91cf GPU \u8d44\u6e90\u3002<\/li>\n<\/ul>\n<h2>\u5982\u4f55\u4f7f\u7528 Unsloth \u5fae\u8c03 Llama 3.1 405B<\/h2>\n<p>\u6b65\u9aa4\u7b80\u6d01\uff1a<\/p>\n<ul>\n<li><strong>\u5b89\u88c5<\/strong>\uff1a\u901a\u8fc7 pip install unsloth \u5b8c\u6210\uff0c\u65e0\u9700\u7f16\u8bd1\u3002<\/li>\n<li><strong>\u52a0\u8f7d\u6a21\u578b<\/strong>\uff1a\u4f7f\u7528 Unsloth \u7684 FastLanguageModel \u7c7b\uff0c\u4e00\u884c\u4ee3\u7801\u52a0\u8f7d 4-bit \u91cf\u5316\u7684 Llama 3.1 405B\u3002<\/li>\n<li><strong>\u51c6\u5907\u6570\u636e<\/strong>\uff1a\u5c06\u81ea\u5b9a\u4e49\u6570\u636e\u96c6\u5904\u7406\u4e3a Alpaca \u683c\u5f0f\u7684 JSON \u6587\u4ef6\u3002<\/li>\n<li><strong>\u5f00\u59cb\u8bad\u7ec3<\/strong>\uff1a\u8c03\u7528 train() \u65b9\u6cd5\uff0c\u81ea\u52a8\u542f\u7528 LoRA \u548c\u6df7\u5408\u7cbe\u5ea6\u8bad\u7ec3\u3002<\/li>\n<li><strong>\u5bfc\u51fa\u4e0e\u90e8\u7f72<\/strong>\uff1a\u5fae\u8c03\u540e\u7684\u6a21\u578b\u53ef\u5bfc\u51fa\u4e3a GGUF \u683c\u5f0f\u7528\u4e8e\u672c\u5730\u63a8\u7406\uff0c\u6216\u901a\u8fc7 vLLM \u90e8\u7f72\u4e3a API\u3002<\/li>\n<\/ul>\n<p>\u7acb\u5373\u8bbf\u95ee <a href=\"https:\/\/unsloth.ai\" target=\"_blank\">\u5b98\u65b9\u7f51\u7ad9<\/a> \u83b7\u53d6\u5b8c\u6574\u6587\u6863\u4e0e\u793a\u4f8b Notebook\uff0c\u5f00\u542f\u4f60\u7684 Llama 3.1 405B \u81ea\u5b9a\u4e49\u5fae\u8c03\u4e4b\u65c5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5927\u578b\u8bed\u8a00\u6a21\u578b\uff08LLM\uff09\u5feb\u901f\u8fed\u4ee3\u7684\u4eca\u5929\uff0c\u5bf9 Meta \u6700\u65b0\u53d1\u5e03\u7684 Llama 3.1 405B \u6a21\u578b\u8fdb\u884c\u81ea\u5b9a\u4e49 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[10287,10286,10289,4740,10288],"class_list":["post-8284","post","type-post","status-publish","format-standard","hentry","category-4","tag-405b","tag-meta-llama-3-1","tag-unsloth","tag-4740","tag-10288"],"_links":{"self":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/8284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8284"}],"version-history":[{"count":1,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/8284\/revisions"}],"predecessor-version":[{"id":8285,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/8284\/revisions\/8285"}],"wp:attachment":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}