Run evals on every LLM change. Catch regressions before users do.
Know if your LLM actually improved before you ship. Stop guessing, start measuring.
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Built around your eval workflow
Run evals from code, the command line, or the UI. Iterate in the playground without touching code.
Run evaluations with Eval(), CLI, or UI
Define your task and dataset in code, run from the terminal, or build evals entirely in the UI. Results land in Braintrust automatically.
Use playgrounds for rapid iteration
Edit the prompt, switch the model, and re-run your dataset in seconds. No code needed. Deploy the winning prompt to production.
Works with
Sign up free and we'll give you instructions to get set up with your stack in minutes.
From teams using Braintrust
<24hrs
To deploy a new frontier model
<10 min
Eval turnaround
50% → 90%+
Accuracy improvement
45x
More feedback
Notion, Dropbox, Zapier, and Coursera use Braintrust to ship better AI.
Built for evals
20+ scorers, ready to use
Factuality, moderation, retrieval quality, and more via autoevals. Write your own in any language. No infrastructure to build.
Evals before you ship. Scoring after.
Run experiments before a release. Score live traffic after. Both live in the same project.
Enterprise-grade, not an add-on
SOC 2 Type II, HIPAA, GDPR. SSO, RBAC, audit logs, and hybrid deployment for regulated teams.
Customer spotlight
“Braintrust is the core of our evaluation framework process.”
Sarav Bhatia, Sr. Dir. of Engineering at Navan
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