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LangChain announces $300 million Series C at a $3 billion valuation

LangChain announced $300 million in new Series C funding led by CapitalG and reported a $3 billion valuation. These are financing and valuation figures, not revenue or proof its agent platform succeeds for every customer. The company says funds will advance LangSmith.

LangChain

Series C financing

Funding & Deals

Published (date only)

Updated

1 source

Primary source · LangChain · November 13, 2026

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