Choose Braintrust if you need
- Integration with OpenAI, Anthropic or LangChain. We haven't found them on LangSmith's website.
- SOC 2, GDPR or HIPAA. We haven't found them on LangSmith's website.
At a glance
- Both have a free plan.
- Braintrust's lowest paid plan is Pro at $249 per month, as of November 14, 2026.
- LangSmith's lowest paid plan is Plus at $39 per seat per month, then pay as you go, as of November 14, 2026.
- Both work with OpenTelemetry.
- Both list SSO.
- Only Braintrust lists SOC 2, GDPR and HIPAA.
- Both can be self-hosted.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose LangSmith if you need
- Integration with OpenAI SDK, Anthropic SDK or Vercel AI SDK. We haven't found them on Braintrust's website.
Braintrust
Nobody has reviewed Braintrust yet. Its rating shows once it has 3 reviews.
Review Braintrust
LangSmith
Nobody has reviewed LangSmith yet. Its rating shows once it has 3 reviews.
Review LangSmithThe facts
- What it does
- BraintrustThe AI observability platform for tracing production, running evals, and catching regressions.
- LangSmithComplete AI agent and LLM observability platform with tracing and real-time monitoring.
- Free plan
- BraintrustYes
- LangSmithYes
- Pricing
- BraintrustNot confirmed
- LangSmithNot confirmed
- Paid plans from
What they share
From the platforms and integrations each website lists.
Integrations
Both
- OpenTelemetry
Only Braintrust
- OpenAI
- Anthropic
- LangChain
- Claude Code
- Cursor
Only LangSmith
- OpenAI SDK
- Anthropic SDK
- Vercel AI SDK
- LlamaIndex
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Braintrust and LangSmith yet.
Used either of them?
Your review makes this comparison better for the next person. Review Braintrust or review LangSmith.