LangChain raises $300 million Series C to expand its AI agent platform
CapitalG led the financing at a $3 billion valuation as LangChain expands tools for running, improving and governing AI agents.
LangChain announced a $300 million Series C at a $3 billion valuation on 13 November. Existing investor CapitalG led the round, joined by new investors GIC and DFJ Growth and returning backers IVP and Sapphire Ventures.
Salesforce Ventures, Insight Partners, QuantumLight and MongoDB Ventures also joined the financing. Sequoia Capital, Amplify Partners and Benchmark invested again.
The San Francisco company builds the open-source LangChain and LangGraph agent frameworks and sells LangSmith, a platform for deploying agents, inspecting their behaviour and evaluating their performance. The new funding will support its work on agent runtime, automated improvement and governance.
LangSmith lets companies choose models and infrastructure while controlling how agents use data and tools. The investment backs a broader set of services around production agents, including model access controls, monitoring and deployment.
Use of funds
Expand the LangSmith platform for running, improving and governing AI agents