Braintrust

Evals and prompt playground for serious teams.

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Proprietary freemium
LicenseProprietary
Starting priceFree tier
Model supportmulti
Languagespython, typescript
GitHub stars
Last activity
VerifiedThu Jun 25 2026 00:00:00 GMT+0000 (Coordinated Universal Time)
Verified byseed

An evaluation and prompt-management platform focused on rigorous, code-first evals and online scoring.

Strengths

  • Excellent eval and scoring UX
  • Strong for prompt-engineering-heavy teams

Tradeoffs

  • Proprietary platform
  • Self-host story limited