{"id":20288,"date":"2026-02-07T19:46:51","date_gmt":"2026-02-07T11:46:51","guid":{"rendered":"https:\/\/92it.top\/?p=20288"},"modified":"2026-02-07T19:49:58","modified_gmt":"2026-02-07T11:49:58","slug":"langchain-%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e6%8c%87%e5%8d%97%ef%bc%9a%e7%bc%93%e5%ad%98%e7%ad%96%e7%95%a5%e3%80%81%e6%a8%a1%e5%9e%8b%e5%88%87%e6%8d%a2%e3%80%81%e6%89%b9%e9%87%8f%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=20288","title":{"rendered":"LangChain \u6027\u80fd\u4f18\u5316\u6307\u5357\uff1a\u7f13\u5b58\u7b56\u7565\u3001\u6a21\u578b\u5207\u6362\u3001\u6279\u91cf\u5904\u7406\uff0c\u964d\u4f4e 80% \u8c03\u7528\u6210\u672c"},"content":{"rendered":"\n<p>\u8f6c\u8f7d\uff1a\u5c0f\u7ea2\u4e66 AI\u4ea7\u54c1\u8d75\u54e5<\/p>\n\n\n\n<p><strong>\u524d\u8a00\ud83d\udd16<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u524d\u51e0\u7bc7\u7b14\u8bb0\u6211\u4eec\u804a\u4e86\u67b6\u6784\u3001\u7ec4\u4ef6\u3001\u5411\u91cf\u6570\u636e\u5e93\u548c RAG\u3002\u5982\u679c\u4f60\u7684\u4ea7\u54c1\u901a\u8fc7\u4e86 Demo \u9636\u6bb5\uff0c\u5f00\u59cb\u51c6\u5907\u4e0a\u7ebf\u9762\u5bf9\u771f\u5b9e\u7528\u6237\uff0c\u90a3\u4e48\u5f88\u62b1\u6b49\u7684\u544a\u8bc9\u4f60\uff0c\u4f60\u9a6c\u4e0a\u8981\u8fce\u6765 AI \u4ea7\u54c1\u7ecf\u7406\u6700\u5934\u75bc\u7684\u4e24\u4e2a\u96be\u9898\uff1a\u5ef6\u8fdf\uff08Latency\uff09\u548c\u6210\u672c\uff08Cost\uff09\u3002<\/p>\n\n\n\n<p>\u5728\u672c\u5730\u6d4b\u8bd5\u65f6\uff0c\u8c03\u7528\u4e00\u6b21 GPT-5 \u82b1 0.03 \u7f8e\u5143\uff0c\u7b49\u5f85 15 \u79d2\uff0c\u4f60\u89c9\u5f97\u6ca1\u95ee\u9898\u3002\u4f46\u5f53\u4f60\u6709 1 \u4e07\u4e2a\u65e5\u6d3b\u7528\u6237\u65f6\uff0c\u8fd9 15 \u79d2\u5c31\u662f\u7528\u6237\u7684\u6d41\u5931\u7387\uff0c\u8fd9 0.03 \u7f8e\u5143\u4e58\u4ee5\u51e0\u4e07\u6b21\u8c03\u7528\uff0c\u5c31\u662f\u6708\u5e95\u8001\u677f\u627e\u4f60\u8c08\u8bdd\u7684\u7406\u7531\u3002<\/p>\n\n\n\n<p>\u5f88\u591a\u521d\u7ea7\u56e2\u961f\u5728\u8fd9\u4e2a\u9636\u6bb5\u4f1a\u9677\u5165\u6050\u614c\uff0c\u76f2\u76ee\u5730\u53bb\u524a\u51cf\u529f\u80fd\u3002\u5176\u5b9e\uff0cLangChain \u4f5c\u4e3a\u4e00\u4e2a\u6210\u719f\u7684\u6846\u67b6\uff0c\u65e9\u5c31\u4e3a\u751f\u4ea7\u73af\u5883\u4f18\u5316\u51c6\u5907\u4e86\u4e00\u5957\u5b8c\u6574\u7684\u5de5\u5177\u7bb1\u3002<\/p>\n\n\n\n<p>\u4eca\u5929\u7684\u7b14\u8bb0\uff0c\u6211\u4eec\u4e0d\u804a\u65b0\u529f\u80fd\uff0c\u53ea\u804a\u641e\u94b1 \u2014\u2014 \u5982\u4f55\u901a\u8fc7\u7f13\u5b58\u3001\u6a21\u578b\u7ea7\u8054\u548c\u6279\u91cf\u5904\u7406\uff0c\u628a\u4f60\u7684 Token \u6210\u672c\u6253\u4e0b\u6765\uff0c\u628a\u54cd\u5e94\u901f\u5ea6\u63d0\u4e0a\u53bb\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u4eca\u5929\u7684\u76ee\u6807\u662f\uff1a\u5728\u4e0d\u964d\u4f4e\u56de\u7b54\u8d28\u91cf\u7684\u524d\u63d0\u4e0b\uff0c\u5c06\u7efc\u5408\u6210\u672c\u964d\u4f4e 80%\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u7f13\u5b58\uff08Caching\uff09\uff1a\u6700\u88ab\u4f4e\u4f30\u7684 \u201c\u964d\u672c\u795e\u5668\u201d\ud83d\udd16<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5728\u4f20\u7edf Web \u5f00\u53d1\u4e2d\uff0cRedis \u7f13\u5b58\u662f\u6807\u914d\u3002\u4f46\u5728 AI \u5f00\u53d1\u4e2d\uff0c\u5f88\u591a\u4eba\u5374\u5fd8\u4e86\u7528\u3002\u8fd9\u662f\u4e00\u4e2a\u5de8\u5927\u7684\u6d6a\u8d39\u3002\u6839\u636e\u6211\u7684\u7ecf\u9a8c\uff0c\u5728\u4e00\u4e2a\u6210\u719f\u7684\u5ba2\u670d\u6216\u54a8\u8be2\u7c7b AI \u4ea7\u54c1\u4e2d\uff0c20% ~ 30% \u7684\u7528\u6237\u63d0\u95ee\u662f\u9ad8\u5ea6\u91cd\u590d\u7684\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u7528\u6237\u95ee \u201c\u600e\u4e48\u4fee\u6539\u5bc6\u7801\u201d\uff0c\u4f60\u6bcf\u6b21\u90fd\u53bb\u8c03\u7528 GPT-5 \u91cd\u65b0\u751f\u6210\u4e00\u904d \u201c\u70b9\u51fb\u8bbe\u7f6e\u2026\u2026\uff0c\u7136\u540e\u2026\u2026\u201d\uff0c\u8fd9\u4e0d\u4ec5\u6162\uff0c\u800c\u4e14\u662f\u5728\u54d0\u54d0\u70e7\u94b1\u3002<\/p>\n\n\n\n<p><strong>\ud83d\udd391.1. \u5185\u5b58\u7f13\u5b58\u4e0e\u6301\u4e45\u5316\u7f13\u5b58<\/strong><\/p>\n\n\n\n<p>LangChain \u63d0\u4f9b\u4e86\u6781\u7b80\u7684\u5f00\u5173\u6765\u542f\u7528\u7f13\u5b58\u3002<\/p>\n\n\n\n<ul>\n<li>\u5185\u5b58\u7f13\u5b58\uff08InMemoryCache\uff09\uff1a\u6570\u636e\u5b58\u5728\u670d\u52a1\u5668 RAM \u91cc\u3002\n<ul>\n<li>\u4f18\u70b9\uff1a\u901f\u5ea6\u6700\u5feb\uff0c\u5fae\u79d2\u7ea7\u3002<\/li>\n\n\n\n<li>\u7f3a\u70b9\uff1a\u91cd\u542f\u670d\u52a1\u5c31\u6ca1\u4e86\uff0c\u591a\u5b9e\u4f8b\u90e8\u7f72\u65f6\u65e0\u6cd5\u5171\u4eab\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u6301\u4e45\u5316\u7f13\u5b58\uff08RedisCache \/ SQLiteCache\uff09\uff1a\u5f3a\u70c8\u5efa\u8bae\u751f\u4ea7\u73af\u5883\u4f7f\u7528 Redis\u3002\n<ul>\n<li>\u4f18\u70b9\uff1a\u6570\u636e\u6301\u4e45\u4fdd\u5b58\uff0c\u591a\u4e2a\u540e\u7aef\u670d\u52a1\u53ef\u4ee5\u5171\u4eab\u540c\u4e00\u4e2a\u7f13\u5b58\u5e93\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd391.2. \u6838\u5fc3\u6280\u672f\uff1a\u8bed\u4e49\u7f13\u5b58\uff08Semantic Cache\uff09<\/strong><\/p>\n\n\n\n<p>\u8fd9\u662f AI \u4ea7\u54c1\u7ecf\u7406\u5fc5\u987b\u61c2\u7684\u6982\u5ff5\u3002<\/p>\n\n\n\n<p>\u4f20\u7edf\u7684\u7f13\u5b58\u662f\u7cbe\u786e\u5339\u914d\uff08Exact Match\uff09\u3002<\/p>\n\n\n\n<ul>\n<li>\u7528\u6237\u95ee\uff1a\u201c\u4eca\u5929\u5929\u6c14\u600e\u4e48\u6837\uff1f\u201d\u2192\u2192 \u7f13\u5b58\u547d\u4e2d\u3002<\/li>\n\n\n\n<li>\u7528\u6237\u95ee\uff1a\u201c\u4eca\u65e5\u5929\u6c14\u5982\u4f55\uff1f\u201d\u2192\u2192 \u7f13\u5b58\u672a\u547d\u4e2d\uff08\u56e0\u4e3a\u5b57\u7b26\u4e32\u4e0d\u4e00\u6837\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u5bf9 AI \u6765\u8bf4\u592a\u7b28\u4e86\u3002\u6211\u4eec\u9700\u8981\u7684\u662f<strong>\u8bed\u4e49\u7f13\u5b58<\/strong>\u3002<\/p>\n\n\n\n<p>LangChain \u901a\u8fc7\u96c6\u6210 <strong>GPTCache<\/strong> \u6216\u7c7b\u4f3c\u7ec4\u4ef6\uff0c\u5b9e\u73b0\u4e86\u8fd9\u4e00\u529f\u80fd\uff1a<\/p>\n\n\n\n<ol>\n<li>\u8ba1\u7b97\u7528\u6237\u95ee\u9898\u7684\u5411\u91cf\uff08Embedding\uff09\u3002<\/li>\n\n\n\n<li>\u5728\u7f13\u5b58\u5e93\u91cc\u627e\u6709\u6ca1\u6709 \u201c\u610f\u601d\u76f8\u8fd1\u201d \u7684\u95ee\u9898\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u76f8\u4f3c\u5ea6\u8d85\u8fc7 0.9\uff0c\u76f4\u63a5\u8fd4\u56de\u4e0a\u6b21\u7684\u7b54\u6848\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5177\u8c61\u5316\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">from langchain.globals import set_llm_cache\nfrom langchain_community.cache import RedisCache\nfrom redis import Redis\n\n# 1. \u8fde\u63a5 Redis\nredis_client = Redis(host=\"localhost\", port=6379, db=0)\n\n# 2. \u4e00\u884c\u4ee3\u7801\u5f00\u542f LangChain \u5168\u5c40\u7f13\u5b58\n# \u4e4b\u540e\u6240\u6709\u7684 LLM \u8c03\u7528\uff0c\u90fd\u4f1a\u5148\u67e5 Redis\nset_llm_cache(RedisCache(redis=redis_client))\n\n# --- \u6d4b\u8bd5 ---\n# \u7b2c\u4e00\u6b21\u8c03\u7528\uff1a\u6162\uff0c\u56e0\u4e3a\u8981\u8bf7\u6c42 API\nllm.invoke(\"\u544a\u8bc9\u6211\u4e07\u6709\u5f15\u529b\u5b9a\u5f8b\u662f\u8c01\u63d0\u51fa\u7684\")\n\n#\u7b2c\u4e8c\u6b21\u8c03\u7528\uff1a\u6781\u5feb\uff0c\u76f4\u63a5\u4ece Redis \u62ff\u7ed3\u679c\uff0c\u4e0d\u6d88\u8017 Token\nllm.invoke (\"\u544a\u8bc9\u6211\u4e07\u6709\u5f15\u529b\u5b9a\u5f8b\u662f\u8c01\u63d0\u51fa\u7684\")<\/pre>\n\n\n\n<p><strong>\u4ea7\u54c1\u7ecf\u7406 Insight:<\/strong><\/p>\n\n\n\n<p>\u5728 PRD \u91cc\uff0c\u4e0d\u8981\u53ea\u5199 \u201c\u52a0\u7f13\u5b58\u201d\u3002\u8981\u5b9a\u4e49 \u7f13\u5b58\u7b56\u7565\uff1a<\/p>\n\n\n\n<ul>\n<li>TTL (\u8fc7\u671f\u65f6\u95f4)\uff1a\u7b54\u6848\u80fd\u5b58\u591a\u4e45\uff1f\u6c47\u7387\u67e5\u8be2\u53ef\u80fd\u53ea\u6709 1 \u5c0f\u65f6\uff0c\u516c\u53f8\u4ecb\u7ecd\u53ef\u80fd\u662f\u6c38\u4e45\u3002\u8fd9\u4e2a\u4e3b\u8981\u53d6\u51b3\u4e8e\u4e0d\u540c\u4fe1\u606f\u7684\u6709\u6548\u6027\u3002<\/li>\n\n\n\n<li>\u76f8\u4f3c\u5ea6\u9608\u503c\uff1a\u8bed\u4e49\u7f13\u5b58\u591a\u50cf\u7b97\u547d\u4e2d\uff1f\u5efa\u8bae 0.9 \u4ee5\u4e0a\uff0c\u5426\u5219\u5bb9\u6613\u7b54\u975e\u6240\u95ee\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u6a21\u578b\u7ea7\u8054\u4e0e\u8def\u7531\u5668\uff08Model Switching\uff09\uff1a\u6740\u9e21\u7109\u7528\u725b\u5200\ud83d\udd16<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u73b0\u5728\u5927\u5bb6\u90fd\u5728\u5377 GPT-5\uff0c\u4f46 80% \u7684\u7528\u6237\u8bf7\u6c42\u5176\u5b9e\u6839\u672c\u4e0d\u9700\u8981 GPT-5 \u7684\u667a\u5546\u3002<\/p>\n\n\n\n<ul>\n<li>\u7528\u6237\u53d1\uff1a\u201c\u4f60\u597d\u201d\u2192\u2192 \u7528 GPT-5 \u56de\u590d\u662f\u6781\u5927\u7684\u6d6a\u8d39\u3002<\/li>\n\n\n\n<li>\u7528\u6237\u53d1\uff1a\u201c\u628a\u8fd9\u6bb5\u8bdd\u7ffb\u8bd1\u6210\u82f1\u6587\u201d\u2192\u2192 GPT-3.5 \u6216 Haiku \u8db3\u591f\u4e86\u3002<\/li>\n\n\n\n<li>\u7528\u6237\u53d1\uff1a\u201c\u5206\u6790\u8fd9\u4efd\u8d22\u62a5\u7684\u6f5c\u5728\u98ce\u9669\u201d\u2192\u2192 \u8fd9\u624d\u9700\u8981 GPT-5\u3002<\/li>\n<\/ul>\n\n\n\n<p>LangChain \u5141\u8bb8\u6211\u4eec\u6784\u5efa<strong>\u6a21\u578b\u7ea7\u8054\uff08Model Cascading\uff09<\/strong> \u6216<strong>\u8def\u7531\u5668\uff08Router\uff09<\/strong>\uff0c<strong>\u6839\u636e\u4efb\u52a1\u96be\u5ea6\u52a8\u6001\u5207\u6362\u6a21\u578b<\/strong>\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u65b9\u6848 A\uff1aFallbacks\uff08\u5931\u8d25\u56de\u9000\uff09<\/strong><\/p>\n\n\n\n<p>\u8fd9\u662f\u6700\u7b80\u5355\u7684\u5bb9\u9519\u7b56\u7565\u3002\u4f18\u5148\u7528\u4fbf\u5b9c\u7684\u6a21\u578b\uff0c\u5982\u679c\u5b83\u641e\u4e0d\u5b9a\uff08\u6bd4\u5982\u683c\u5f0f\u9519\u4e86\u3001\u62a5\u9519\u4e86\uff09\uff0c\u518d\u7531\u6602\u8d35\u7684\u6a21\u578b\u63a5\u624b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">from langchain_openai import ChatOpenAI\n\n# \u5b9a\u4e49\u4e24\u4e2a\u6a21\u578b\ngpt_35 = ChatOpenAI(model=\"gpt-3.5-turbo\")\ngpt_4 = ChatOpenAI(model=\"GPT-5\")\n\n# \u6784\u5efa\u5e26\u6709\u56de\u9000\u673a\u5236\u7684\u94fe\n# \u4f18\u5148\u8dd1 gpt_35\uff0c\u5982\u679c\u62a5\u9519\uff0c\u81ea\u52a8\u5207 gpt_4\nllm_with_fallback = gpt_35.with_fallbacks([gpt_4])\n\n# \u8fd9\u79cd\u573a\u666f\u901a\u5e38\u7528\u4e8e JSON \u683c\u5f0f\u5316\u89e3\u6790\u5931\u8d25\u65f6\u81ea\u52a8\u6551\u573a<\/pre>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u65b9\u6848 B\uff1a\u667a\u80fd\u8def\u7531\uff08Smart Routing\uff09<\/strong><\/p>\n\n\n\n<p>\u8fd9\u662f\u9ad8\u7ea7\u73a9\u6cd5\u3002<strong>\u5229\u7528\u4e00\u4e2a\u5c0f\u6a21\u578b\uff08\u5982 Claude Haiku \u6216\u5fae\u8c03\u8fc7\u7684 Llama 3\uff09\u4f5c\u4e3a\u5206\u62e3\u5458\u3002<\/strong><\/p>\n\n\n\n<p>\u903b\u8f91\u5982\u4e0b\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"341\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2026\/02\/image-46-1024x341.png\" alt=\"\" class=\"wp-image-20291\" style=\"width:558px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2026\/02\/image-46-1024x341.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2026\/02\/image-46-300x100.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2026\/02\/image-46-768x256.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2026\/02\/image-46-830x276.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2026\/02\/image-46-230x77.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2026\/02\/image-46-350x117.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2026\/02\/image-46-480x160.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2026\/02\/image-46.png 1279w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p>\u6210\u672c\u8d26\uff1a<\/p>\n\n\n\n<ul>\n<li>gpt-5.2 Input\uff1a$1.75 \/ 1M tokens<\/li>\n\n\n\n<li>gpt-3.5-turbo Input\uff1a$0.5 \/ 1M tokens<\/li>\n\n\n\n<li>Claude 3 Haiku Input\uff1a$0.25 \/ 1M tokens<\/li>\n<\/ul>\n\n\n\n<p>\u5982\u679c\u4f60\u7684\u5206\u62e3\u5458\u80fd\u628a 70% \u7684\u7b80\u5355\u6d41\u91cf\u5206\u7ed9 Haiku\uff0c\u4f60\u7684\u603b Token \u6210\u672c\u5c06\u76f4\u63a5\u4e0b\u964d 10 \u500d\u3002<\/p>\n\n\n\n<p><strong>\u4ea7\u54c1\u7ecf\u7406 Insight\uff1a<\/strong><\/p>\n\n\n\n<p>\u4e0d\u8981\u8ff7\u4fe1 \u201c\u6700\u597d\u7684\u6a21\u578b\u201d\u3002\u5728\u5782\u76f4\u573a\u666f\u4e0b\uff0c\u7ecf\u8fc7 Prompt \u4f18\u5316\u7684 3.5 \u7248\u672c\u5f80\u5f80\u6027\u4ef7\u6bd4\u65e0\u654c\u3002\u4f60\u9700\u8981\u5efa\u7acb\u4e00\u4e2a\u6d4b\u8bd5\u96c6\uff0c\u53bb\u8bc4\u4f30\u5c0f\u6a21\u578b\u5728\u57fa\u7840\u4efb\u52a1\u4e0a\u7684\u8868\u73b0\uff0c\u5982\u679c\u901a\u8fc7\u7387\u8fbe\u6807\uff0c\u679c\u65ad\u964d\u7ea7\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u6279\u91cf\u5904\u7406\uff08Batching\uff09\uff1a\u541e\u5410\u91cf\u63d0\u5347\u795e\u5668\ud83d\udd16<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5982\u679c\u4f60\u5728\u505a\u79bb\u7ebf\u4efb\u52a1\uff0c\u6bd4\u5982 \u201c\u7ed9\u6570\u636e\u5e93\u91cc\u7684 10,000 \u6761\u7528\u6237\u8bc4\u8bba\u6253\u6807\u7b7e\u201d\uff0c\u5343\u4e07\u4e0d\u8981\u7528 for \u5faa\u73af\u4e00\u6761\u6761\u8c03\u3002\u4e32\u884c\u5904\u7406\u4e0d\u4ec5\u6162\uff0c\u800c\u4e14\u5bb9\u6613\u89e6\u53d1 API \u7684\u5e76\u53d1\u9650\u5236\u62a5\u9519\u3002<\/p>\n\n\n\n<p>LangChain \u7684\u6838\u5fc3\u7ec4\u4ef6\uff08Runnables\uff09\u90fd\u539f\u751f\u652f\u6301 .batch () \u65b9\u6cd5\u3002\u5b83\u4f1a\u81ea\u52a8\u5229\u7528 Python \u7684 asyncio \u5e93\u8fdb\u884c\u5e76\u884c\u5904\u7406\uff0c\u5927\u5e45\u63d0\u5347\u541e\u5410\u91cf\uff08Throughput\uff09\u3002<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u5e76\u884c\u4e0e\u5e76\u53d1\u63a7\u5236<\/strong><\/p>\n\n\n\n<p>\u8fd9\u91cc\u6709\u4e00\u4e2a\u5751\uff1a\u867d\u7136 .batch () \u53ef\u4ee5\u5e76\u884c\u53d1 100 \u4e2a\u8bf7\u6c42\uff0c\u4f46 OpenAI \u7684\u63a5\u53e3\u901a\u5e38\u6709 Rate Limit\uff08\u6bd4\u5982\u6bcf\u5206\u949f\u6700\u591a 5000 \u6b21\uff09\u3002\u5982\u679c\u77ac\u95f4\u5e76\u53d1\u592a\u9ad8\uff0c\u4f1a\u76f4\u63a5\u88ab 429 \u9519\u8bef\u6253\u56de\u6765\u3002<\/p>\n\n\n\n<p>LangChain \u5141\u8bb8\u914d\u7f6e max_concurrency\uff08\u6700\u5927\u5e76\u53d1\u6570\uff09\u3002<\/p>\n\n\n\n<p>\u4f2a\u4ee3\u7801<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u5047\u8bbe chain \u662f\u6211\u4eec\u8981\u6267\u884c\u7684\u5904\u7406\u94fe\n\ninputs = [{\"text\": \"\u8bc4\u8bba1...\"}, {\"text\": \"\u8bc4\u8bba2...\"}, ...] # 1000\u6761\u6570\u636e\n\n# \u81ea\u52a8\u6279\u91cf\u5904\u7406\uff0c\u540c\u65f6\u6700\u591a\u8dd1 5 \u4e2a\u8bf7\u6c42\n# config \u53c2\u6570\u662f\u63a7\u5236\u5e76\u53d1\u7684\u5173\u952e\nresults = chain.batch(inputs, config={\"max_concurrency\": 5})<\/pre>\n\n\n\n<p><strong>\u4ea7\u54c1\u7ecf\u7406 Insight:<\/strong><\/p>\n\n\n\n<p>\u5bf9\u4e8e\u975e\u5b9e\u65f6\uff08\u5373\uff1aUser-facing\uff09\u7684\u529f\u80fd\uff0c\u6bd4\u5982\u6bcf\u5929\u51cc\u6668\u751f\u6210\u7684\u65e5\u62a5\u3001\u6279\u91cf\u6587\u6863\u5206\u6790\uff0cBatching \u662f\u5fc5\u987b\u7684\u8981\u6c42\u3002\u5b83\u80fd\u8ba9\u539f\u672c\u8dd1\u4e00\u6574\u665a\u7684\u4efb\u52a1\u7f29\u77ed\u5230\u534a\u5c0f\u65f6\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u4e0a\u4e0b\u6587\u538b\u7f29\uff08Context Compression\uff09\uff1a\u53ea\u7ed9\u6a21\u578b\u770b\u5b83\u8be5\u770b\u7684\ud83d\udd16<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5728 RAG \u573a\u666f\u4e2d\uff0c\u6210\u672c\u7684\u5927\u5934\u5f80\u5f80\u4e0d\u662f\u7528\u6237\u7684\u51e0\u53e5\u63d0\u95ee\uff0c\u800c\u662f\u6211\u4eec\u585e\u8fdb Prompt \u91cc\u7684\u90a3\u51e0\u5343\u5b57\u53c2\u8003\u6587\u6863\u3002<\/p>\n\n\n\n<p>\u6734\u7d20\u505a\u6cd5\uff1a\u68c0\u7d22\u51fa\u524d 5 \u4e2a\u6587\u6863\u5757\uff0c\u539f\u5c01\u4e0d\u52a8\u585e\u7ed9 LLM\u3002<\/p>\n\n\n\n<p>\u95ee\u9898\uff1a\u6587\u6863\u5757\u91cc\u53ef\u80fd\u53ea\u6709\u4e00\u53e5\u8bdd\u662f\u6709\u7528\u7684\uff0c\u5176\u4ed6 90% \u90fd\u662f\u5e9f\u8bdd\u3002\u4f46\u4f60\u5374\u4e3a\u8fd9\u4e9b\u5e9f\u8bdd\u4ed8\u4e86\u8d39\u3002<\/p>\n\n\n\n<p>LangChain \u63d0\u4f9b\u4e86 <strong>ContextualCompressionRetriever\uff08\u4e0a\u4e0b\u6587\u538b\u7f29\u68c0\u7d22\u5668\uff09<\/strong>\u3002<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u539f\u7406<\/strong><\/p>\n\n\n\n<p>\u5728\u6587\u6863\u68c0\u7d22\u51fa\u6765\u4e4b\u540e\uff0c\u5728\u53d1\u7ed9 LLM \u4e4b\u524d\uff0c\u52a0\u4e00\u4e2a<strong>\u538b\u7f29\u5c42<\/strong>\u3002\u8fd9\u4e2a\u538b\u7f29\u5c42\u53ef\u4ee5\u662f\u53e6\u4e00\u4e2a\u6781\u5c0f\u7684 LLM\uff0c\u5b83\u7684\u4efb\u52a1\u662f\uff1a<strong>\u53ea\u4fdd\u7559\u4e0e\u95ee\u9898\u76f8\u5173\u7684\u53e5\u5b50\uff0c\u5220\u6389\u65e0\u5173\u7684\u5e9f\u8bdd\u3002<\/strong><\/p>\n\n\n\n<p><strong>\u6d41\u7a0b\u5bf9\u6bd4\uff1a<\/strong><\/p>\n\n\n\n<ul>\n<li><strong>\u4f18\u5316\u524d<\/strong>\uff1a\u68c0\u7d22 3000 Tokens \u2192 \u53d1\u9001 LLM \u2192 \u6210\u672c\u9ad8<\/li>\n\n\n\n<li><strong>\u4f18\u5316\u540e<\/strong>\uff1a\u68c0\u7d22 3000 Tokens \u2192 \u538b\u7f29\u5c42\u8fc7\u6ee4 \u2192 \u5269\u4f59 500 Tokens \u2192 \u53d1\u9001 LLM \u2192 \u8282\u7701 80% \u6210\u672c<\/li>\n<\/ul>\n\n\n\n<p>\u867d\u7136\u591a\u4e86\u4e00\u6b21\u538b\u7f29\u7684\u8ba1\u7b97\uff0c\u4f46\u56e0\u4e3a\u538b\u7f29\u53ef\u4ee5\u7528\u6781\u5c0f\u7684\u6a21\u578b\uff08\u751a\u81f3\u662f\u975e LLM \u7684\u7b97\u6cd5\uff09\uff0c\u4e14\u4e3b\u6a21\u578b\u5904\u7406\u7684 Token \u5927\u5e45\u51cf\u5c11\uff0c\u6574\u4f53\u5ef6\u8fdf\u901a\u5e38\u53cd\u800c\u662f\u964d\u4f4e\u7684\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u54b1\u6765\u7b97\u7b14\u8d26\uff1a\u4f18\u5316\u524d vs \u4f18\u5316\u540e\ud83d\udd16<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u4e3a\u4e86\u8ba9\u4f60\u66f4\u6709\u4f53\u611f\uff0c\u54b1\u6765\u590d\u76d8\u4e00\u4e2a\u771f\u5b9e\u7684\u4f01\u4e1a\u77e5\u8bc6\u5e93\u95ee\u7b54\u9879\u76ee\u7684\u4f18\u5316\u8def\u5f84\u3002<\/p>\n\n\n\n<p><strong>\u573a\u666f\uff1a\u6bcf\u5929 10,000 \u6b21\u95ee\u7b54\uff0c\u5e73\u5747\u6bcf\u6b21 Prompt \u957f\u5ea6 2000 Tokens\uff08\u542b\u68c0\u7d22\u5230\u7684\u6587\u6863\uff09\u3002<\/strong><\/p>\n\n\n\n<p><strong>\ud83d\udd39\u9636\u6bb5 1\uff1a\u88f8\u5954\u7248\uff08Naive RAG\uff09<\/strong><\/p>\n\n\n\n<ul>\n<li>\u6a21\u578b\uff1a\u5168\u90e8\u4f7f\u7528 GPT-5\u3002<\/li>\n\n\n\n<li>\u7b56\u7565\uff1a\u65e0\u7f13\u5b58\uff0c\u65e0\u538b\u7f29\u3002<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>\u65e5\u6210\u672c\uff1a10,000 * 2000 \/ 1000 * $0.03 (\u5047\u8bbe\u6df7\u5408\u5747\u4ef7) \u2248 $600 \/ \u5929<\/li>\n\n\n\n<li>\u5e73\u5747\u5ef6\u8fdf\uff1a12 \u79d2<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u9636\u6bb5 2\uff1a\u5f15\u5165\u8bed\u4e49\u7f13\u5b58\uff08Redis + Embedding\uff09<\/strong><\/p>\n\n\n\n<ul>\n<li>\u7b56\u7565\uff1a\u547d\u4e2d\u7387 30%\uff08\u5e38\u89c1\u95ee\u9898\uff09\u3002<\/li>\n\n\n\n<li>\u65e5\u6210\u672c\uff1a\u5269\u4f59 7000 \u6b21\u8c03\u7528 \u2248 $420 \/ \u5929<\/li>\n\n\n\n<li>\u5e73\u5747\u5ef6\u8fdf\uff1a\u547d\u4e2d\u65f6 0.5 \u79d2\uff0c\u672a\u547d\u4e2d 12 \u79d2\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u9636\u6bb5 3\uff1a\u6a21\u578b\u7ea7\u8054\uff08Router\uff09<\/strong><\/p>\n\n\n\n<ul>\n<li>\u7b56\u7565\uff1a\u4f7f\u7528 Router\uff0c\u5c06 50% \u7684\u7b80\u5355\u95ee\u9898\uff08\u5982\u6253\u62db\u547c\u3001\u7b80\u5355\u4e8b\u5b9e\u67e5\u8be2\uff09\u5206\u6d41\u7ed9 GPT-3.5-turbo\u3002\n<ul>\n<li>GPT-5 \u8c03\u7528\u91cf\u964d\u81f3 3500 \u6b21\u3002<\/li>\n\n\n\n<li>GPT-3.5 \u8c03\u7528\u91cf 3500 \u6b21\uff08\u6210\u672c\u6781\u4f4e\uff0c\u51e0\u4e4e\u53ef\u5ffd\u7565\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u65e5\u6210\u672c\uff1a$220 \/ \u5929<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u9636\u6bb5 4\uff1a\u4e0a\u4e0b\u6587\u538b\u7f29<\/strong><\/p>\n\n\n\n<ul>\n<li>\u7b56\u7565\uff1a\u5bf9 GPT-5 \u5904\u7406\u7684\u90a3 3500 \u6b21\u590d\u6742\u95ee\u9898\uff0c\u8fdb\u884c Context \u538b\u7f29\uff0cToken \u51cf\u5c11 60%\u3002<\/li>\n\n\n\n<li>\u65e5\u6210\u672c\uff1a$100 \/ \u5929<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u6700\u7ec8\u7ed3\u679c<\/strong><\/p>\n\n\n\n<p>\u4ece $600 \u964d\u5230 $100\uff0c<strong>\u6210\u672c\u964d\u4f4e\u4e86 83%<\/strong>\u3002\u540c\u65f6\uff0c\u7531\u4e8e\u7f13\u5b58\u548c\u7b80\u5355\u6a21\u578b\u5206\u6d41\u7684\u5b58\u5728\uff0c<strong>\u5e73\u5747\u54cd\u5e94\u901f\u5ea6\u4ece 12 \u79d2\u63d0\u5347\u5230\u4e86 4 \u79d2\u5de6\u53f3<\/strong>\u3002<\/p>\n\n\n\n<p>\u8fd9\u6837\u4e0b\u6765\uff0c\u4f60\u731c\u731c\uff0c\u4f60\u7684\u8001\u677f\u4f1a\u4e0d\u4f1a\u5929\u5929\u8bf7\u4f60\u559d\u5496\u5561\uff1f\ud83e\udd7a\ud83e\udd7a\ud83e\udd7a<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u4ea7\u54c1\u7ecf\u7406\u7684\u907f\u5751\u6e05\u5355\ud83d\udd16<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5728\u63a8\u52a8\u8fd9\u4e9b\u4f18\u5316\u65f6\uff0c\u6709\u51e0\u4e2a\u70b9\u54b1\u4eec\u5f97\u7279\u522b\u7559\u610f\uff0c\u4e0d\u8981\u88ab\u5f00\u53d1\u5ffd\u60a0\uff0c\u4e5f\u4e0d\u8981\u7ed9\u5f00\u53d1\u6316\u5751\uff1a<\/p>\n\n\n\n<ol>\n<li><strong>\u7f13\u5b58\u7684\u8d1f\u9762\u6548\u5e94<\/strong>\uff1a\u7f13\u5b58\u53ef\u80fd\u5bfc\u81f4 \u201c\u6570\u636e\u66f4\u65b0\u4e0d\u53ca\u65f6\u201d\u3002\u5982\u679c\u4f60\u4fee\u6539\u4e86\u77e5\u8bc6\u5e93\u6587\u6863\uff0c\u8bb0\u5f97\u540c\u6b65\u6e05\u7a7a Redis \u91cc\u7684\u76f8\u5173\u7f13\u5b58\u3002\u8fd9\u53eb<strong>\u7f13\u5b58\u5931\u6548\u673a\u5236\uff08Cache Invalidation\uff09<\/strong>\uff0cPRD \u91cc\u8981\u63d0\u3002<\/li>\n\n\n\n<li><strong>\u538b\u7f29\u7684\u98ce\u9669<\/strong>\uff1a\u4e0a\u4e0b\u6587\u538b\u7f29\u5982\u679c\u538b\u5f97\u592a\u72e0\uff0c\u53ef\u80fd\u4f1a\u628a\u5173\u952e\u4fe1\u606f\u4e22\u6389\u3002\u9700\u8981\u8bbe\u7f6e\u4e00\u4e2a min_tokens 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