LangSmith pricing and free tier

LangSmith has a free tier (Developer: $0 for 1 seat, 5K traces/month) and paid plans from Plus $39 per seat per month (10K traces included). Read from its pricing page on 23 October 2026.

Company: LangChain. Categories: LLM observability and gateways. Website: https://www.langchain.com/langsmith. Pricing page: https://www.langchain.com/pricing.

Product	Pricing model	Free tier	Lowest paid price
LangSmith Extra traces 0.005 LangChain Standard Units each ($1 per unit). Startup credits up to $10,000.	per seat	Developer: $0 for 1 seat, 5K traces/month	Plus $39 per seat per month (10K traces included)

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LangSmith pricing and free tier

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