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Fundraising

LangChain

LangChain Raises $125M Series B | LLM Application Framework

San Francisco, CAJanuary 7, 20261 min read
Total Raised
$125M
Latest Round
Series B
Employees
80+

LangChain Closes $125M Series B

LangChain, the popular open-source framework for building applications with large language models, has raised $125 million in Series B funding.

Key Highlights

  • Leading LLM application framework
  • Massive developer adoption
  • Enterprise platform expansion

Company Overview

LangChain provides the most widely used framework for building LLM-powered applications, offering tools for chaining prompts, connecting to data sources, and building complex AI agents.

Company Info

Headquarters
San Francisco, CA
Founded
2022
Team Size
80+
Last Round
$125M(Jan 2026)

Investors (2)

S
Sequoia CapitalLead
Lead Investor
Global venture capital firm
B
Benchmark
Investor
Early-stage venture capital

Topics

AI/ML(484)Series B(306)Developer Tools(292)LLMOpen Source

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