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BraintrustPromptLayer
Freemium

Self-serve sign-up with paid plans listed on the pricing page.

 Freemium

Free plan available with paid tiers for teams.

Web Web
  • Real-time tracing of prompts, responses and tool calls
  • Evals scored by LLMs, code or humans
  • Visual prompt editing without code redeploys
  • Evaluations with datasets, graders and human review
  • Hosted service that requires an account
  • Aimed at teams building LLM products, not individual users
  • Hosted service; prompts and logs live on its servers
  • Requires an account
Hosted service Web application, Hosted service
Closed source Closed source
License not stated License not stated
Account needed Account needed
Needs internet Needs internet

Checked October 1, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.