We raised $125M at a $1.25B valuation to build the platform for agent engineering.

Langchain is a publication focusing on programming languages, language design, and compiler development. Readers can explore articles covering topics such as language features, syntax design, and compiler optimization techniques. Additionally, they can learn about programming language theory, language implementation challenges, and practical applications of language design principles.

LangChain

LangChain secured $125M in Series B funding at a $1.25B valuation to expand its platform for agent engineering. The company released major updates including LangChain and LangGraph 1.0, a new Insights Agent for behavior pattern analysis, and a no-code Agent Builder in private preview. LangSmith evolved into a comprehensive platform offering observability, evaluation, and deployment capabilities for building reliable AI agents. The frameworks now see 90M monthly downloads combined, with 35% of Fortune 500 companies using their services.

LangChain raises $125M to build the platform for agent engineering