LangChain
Build apps on language models
About LangChain
LangChain is an AI developer platform. Open source libraries for agents, with tools to test and monitor them.
LangChain is best for developers building applications with language models. LangChain has a free plan, and paid plans add more. It works on the web.
Features
Framework
Connect models, data and tools.
LangGraph
Build agents with clear control.
LangSmith
Test and watch your AI apps.
Questions about LangChain
What is LangChain?
LangChain is an AI developer platform. Open source libraries for agents, with tools to test and monitor them.
Who is LangChain best for?
LangChain is best for developers building applications with language models.
What are the main features of LangChain?
Its main features include Framework, LangGraph and LangSmith.
Is LangChain free?
LangChain has a free plan, and paid plans add more. Check its website for current limits and prices.
What platforms does LangChain work on?
LangChain works on the web.
What are the best alternatives to LangChain?
Popular alternatives include Hugging Face and Replicate. Compare them on the features you need most.
How do I choose an AI developer platform?
Check which models it supports, how you pay for usage, and how easily it fits into the language and hosting you already use.
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