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AI Landscape / LLMOps, Evaluation & Observability

LangChain

Open-source frameworks and tools for building and monitoring AI agents.

langchain.com ↗LLMOps, Evaluation & ObservabilityAI Agents & Workflow Automation
LangChain homepage
Homepage of langchain.com, captured Oct 18

Company profile

LangChain provides businesses with an open agent engineering platform and tools to build and monitor applications powered by large language models. LangChain websitetechcrunch.com

Its tools include the LangChain framework for integrating language models into applications and LangSmith for debugging AI agents. WikipediaDeveloper Tech News

Founded
Not publicly reported
Founders
Harrison ChaseWikidata
Headquarters
Not publicly reported
Chief executive
Harrison ChaseAs of Oct 17, 2026 · BigGo Finance
Employees
Not publicly reported
Ownership
Not publicly reported
Total funding
Not publicly reported
Latest funding round
Series A, $25 million, led by SequoiaAs of 2023 · techcrunch.com
Valuation
Not publicly reported
Revenue
Not publicly reported

Drawn from Wikidata, Wikipedia, the company's own site and news and web sources; each figure links to its source. Researched Oct 19, 2026.

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