介绍 LangChain 生态项目布局，包括 LangServe、LCEL、LangSmith 等组件，从原型开发到生产部署的全流程解决方案。
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文配视频：LangServe 发布！LangChain 宇宙初现？随着 LangServe 发布，LangChain 团队目前的生态项目布局逐步清晰起来了，所以给社区画了一张图（原推），同时配了一个讲解视频。>💡Your Idea >✨+ LCEL = Prototype>🚀+ LangServe = Production-ready API>🌐+ Hosting Provider = Live deployment>🔍+ LangSmith = Live monitoring
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