What is LangSmith?
Developed by LangChain, this tool provides full visibility into the 'thought process' of your AI models, helping developers fix errors in complex chains.
Key facts
- Pricing
- Free / $39 mo
- Free plan
- Yes
- Category
- Coding
- Website
- https://smith.langchain.com/
- Listing updated
- Nov 11, 2026
LangSmith FAQ
What is LangSmith?
Developed by LangChain, this tool provides full visibility into the 'thought process' of your AI models, helping developers fix errors in complex chains.
Is LangSmith free?
Yes. LangSmith lists a free plan. Pricing: Free / $39 mo.
What are alternatives to LangSmith?
Coding alternatives to LangSmith include GitHub Copilot, Together AI, Baseten, Straion, Cursor and Pinecone.