Versalist vs Braintrust
Test an agent change before it ships. Start with domain challenges in Versalist, or build evaluations from your data in Braintrust.
Two starting points
Versalist
Start with challenges
Explore ready-made challenges for agent tasks, or create challenges from your own workflows. Review the evidence before you release a change.
Braintrust
Start with your data
Build evaluations from datasets and production traces. Braintrust also provides tools to monitor agents after deployment.
Side by side
Both products help teams evaluate changes. Their starting points and production focus differ.
| Area | Versalist | Braintrust |
|---|---|---|
| Domain challenges | Explore a library of ready-made challenges, including domain-specific tasks. | The dataset documentation describes ways to create datasets rather than a ready-made domain challenge library. |
| Test cases | Start with challenges from the library or create challenges for your own workflows. | Create datasets from your data, including uploads and production traces. Loop can also generate datasets from criteria. |
| Compare a change | Compare eligible completed runs on the same cases and rubric, and review per-case results. | Compare experiments against a baseline and inspect improvements and regressions by test case. |
| Release review | A review owner can record Ship, Hold, or Needs work with the comparison. | Experiment comparisons give an overall grade. A GitHub Action can post results to a pull request, and quality gates can block changes. |
| Production monitoring | Versalist focuses on evaluating changes before deployment. | Trace calls, identify patterns, and score live traffic. |
Choose the starting point that fits
Consider Braintrust if
- You want to trace and score an agent in production.
- You want to build evaluations from existing logs and production data.
Consider Versalist if
- You want to explore challenges before you have production logs.
- You want ready-made challenges alongside cases for your own domain.
Use both
The products can work together. Evaluate a change with Versalist before release, then use Braintrust to monitor the agent in production.
Review your next agent change
See how challenges and comparison evidence can support a release decision for your workflow.
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