| Website | braintrust.dev |
| Category | AI / Evaluation |
| License | MIT (open source core) |
| Pricing | Free tier, Pro from $250/mo |
Overview
Braintrust is an evaluation platform for AI products. Logging, scoring, experiments, and datasets. Measure and improve AI quality systematically.
Pros
- MIT-licensed core SDK
- Comprehensive evaluation framework
- Experiment tracking
- Dataset management
- Scoring functions
- Production logging
Cons
- Pro pricing is high
- Learning curve for evaluation design
- Cloud-centric
- Limited self-hosting
- Documentation could be better
Verdict
Braintrust makes AI evaluation systematic. Instead of manually checking LLM outputs, Braintrust lets you define scoring functions, run experiments across datasets, and track quality over time. The experiment framework is particularly strong: change a prompt, run it against your test set, and see exactly how quality changed. For AI teams that need to ship reliable products, Braintrust provides the evaluation infrastructure.
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