LangChain 完成 3 亿美元 C 轮融资，估值 30 亿美元，同步推出新版 LangSmith 平台
LangChain 拿下 3 亿美元 C 轮，估值 30 亿美元，同时把 LangSmith 升级成框架无关的 agent 平台，从构建到治理全管。做 agent 开发的可以看看它跟 Langfuse 这些工具的差异，企业买家也该关注治理这块。
LangChain 宣布完成 3 亿美元 C 轮融资，估值达到 30 亿美元。公司称过去 3 年有数百万开发者使用 LangChain 框架构建 agent，这次融资将用于推进其核心产品布局。
融资同期，LangChain 发布了新版 LangSmith 平台。该平台定位为框架无关（framework-agnostic）的 agent 开发平台，覆盖 agent 开发的完整生命周期，核心能力包括构建（build）、运行（run）、改进（improve）和治理（govern）四类，且由 agent 驱动。这意味着开发者即使不使用 LangChain 自家框架，也可以把 LangSmith 用作 agent 的运行与治理层。
Harrison Chase 在公告中表示，agent 将改变经济结构，掌握自身智能能力的公司才能建立持久竞争优势。此前 LangChain 的收入主要来自开源框架之上的托管服务，此次把 LangSmith 升级为独立平台，是向企业级 agent 基础设施方向明确靠拢，与 Langfuse、Braintrust 等 agent 观测与评估工具的竞争将更加直接。
Over the past 3 years, millions of developers have used LangChain frameworks to build agents. Today, we're putting everything we've learned into one platform: the new LangSmith. Built for and powered by agents, supporting the entire agent development lifecycle, so you can build, run, improve, and govern every agent. Harrison Chase @hwchase17 Today we announced that LangChain raised $300M at a $3B valuation. We think agents will transform the economy, and the companies that own their intelligence will build lasting competitive advantages. That's why we're building LangSmith, the framework-agnostic platform to run, improve, and govern agents. Still so much left to build! More on what’s next: langchain.com/blog/series-c
This report is categorized under AITOP's "Products" desk, focusing on US frontier AI labs and Silicon Valley technology leaders. Within our cross-regional analytical framework, it directly maps to AI developer toolchains, coding agents, and engineering workflows. Key entities and technical topics under continuous tracking include LangChain, LangSmith, agents, funding.
Source attribution: curated from LangChain (@LangChainAI).
