LangChain Raises $300M Series C at $3B Valuation

LangChain reportedly announced a $300M Series C led by CapitalG at a $3B valuation, about 2.4x its reported October 2025 Series B valuation; total funding is reported at $460M. Its shift from open-source tooling toward LangSmith’s enterprise agent runtime, improvement, and governance layers complements its model- and cloud-neutral positioning. Claims of 7,000 customers and customer outcomes remain company-reported and independently unverified.