LangChain, the company that makes tools for building and managing AI agents, has raised $300 million at a $3 billion valuation to expand its platform as businesses look for ways to use agents in their operations.
The Series C was announced November 13. Existing investor CapitalG led the round. GIC and DFJ Growth also joined, along with returning investors IVP and Sapphire Ventures.
LangChain said the round brings its total funding to $460 million. LangSmith, LangChain’s paid platform, helps organizations run, monitor, test and set rules for AI agents. LangChain’s developer tools are designed to work with different models.
LangChain says more than 7,000 organizations use LangSmith, including Harvey, Rippling, NVIDIA, Toyota and Salesforce. LangChain also cites examples of customers using the tools in their operations. It says Clay monitors hundreds of millions of agent runs each month.
Workday says it cut the time to deploy a new agent from five months to less than a day. The company plans to use the funding to further develop its agent engineering platform. LangChain describes the platform as a way for businesses to control their models, data and agent operations.
The investment reflects growing interest in the systems businesses need to manage AI agents beyond initial experiments. However, the customer and performance figures came from the company itself.