Capabilities and tasks
Framework for language-model apps, retrieval and agents
Publisher source ↗LangChain
Framework for language-model apps, retrieval and agents
AI agentsCompany overview
Framework for language-model apps, retrieval and agents
- Company
- LangChainOfficial source ↗
- Founders
- Harrison Chase (co-founder)Official source ↗
- Founded
- 2023Official source ↗
- Listed?
- Not confirmed listed
- Legal entity
- LangChain Inc.Official source ↗
LocationUnited States · San FranciscoPublisher source ↗FundingAnnounced US$125M funding at a US$1.25B valuation on 20 Oct 2025 (that round)Publisher source ↗ScaleOfficial figures: used by 35% of Fortune 500; 1B+ open-source downloads; LangSmith ingests 1B+ events dailyPublisher source ↗Project originLangChain open-source project began in late 2022; company founded in 2023Publisher source ↗www.langchain.com ↗
Free use
Free on your own device; hardware required
Publisher source ↗Official pricing
Local software free; cloud billed separately
Publisher source ↗Models and capabilities
Models connected through LangChain
Publisher source ↗Countries, regions and access
Self-hosted / local software; cloud and model rules separate
Publisher source ↗Commercial rights
The publisher software license has conditions. Model and cloud-service rights are separate.
Publisher source ↗Payment methods
- No software payment for the self-hosted/open-source editionPublisher source ↗
- Cloud hosting, compute and model API costs are billed separatelyPublisher source ↗
Developer API pricing and web plans
Self-hosted core has no vendor fee per request; GPU, hosting and connected model APIs cost separately.
Web or product subscription (not an API-call fee)
Local software free; cloud billed separately
Publisher source ↗