AI Tool Comparison
Braintrust vs Supabase
A side-by-side breakdown to help you pick the right tool for your workflow.
Braintrust
Trace, score, and compare LLM outputs to catch quality regressions before they reach production. Closed an $80M Series B at ~$800M valuation in early 2026.
Supabase
Get a Postgres database, auth, storage, and edge functions in one backend, with an AI Assistant and MCP integrations, so small teams ship apps without managing infrastructure.
Bottom Line
Last reviewed: August 2026
Braintrust and Supabase both sit in Developer Tools, but they're built around different use cases within it. Supabase carries the higher rating (4.7 vs 4.6), but a gap that size rarely overrides a real workflow fit on its own.
Choose Braintrust if…
Best for teams shipping LLM applications who need systematic proof that a prompt or model change actually improved quality, and its edge is integrates evaluation directly into CI/CD so evals run automatically on every change, not as a manual afterthought. Best-in-class for rigorous LLM evaluation workflows, real overkill for a simple single-prompt application.
Choose Supabase if…
Best for developers who want a Postgres-backed backend, auth, and storage without building infrastructure from scratch, and its edge is built-in pgvector support means you don't need a separate vector database for AI features. The default open-source Firebase alternative for teams comfortable with a little Postgres knowledge.
| Attribute | Braintrust | Supabase |
|---|---|---|
| Category | Developer Tools | Developer Tools |
| Pricing | freemium | freemium |
| Pricing Detail | Free (1GB data) / $249/mo Pro / Enterprise custom | Free / $25/mo Pro / $599/mo Team |
| Rating |
Key Features
Braintrust
- Eval dataset management
- Custom scoring functions
- Experiment comparison
- CI/CD integration
- Prompt playground
- Production monitoring
Supabase
- Postgres database
- Built-in authentication
- File storage
- pgvector for semantic search
- Edge functions
- Real-time subscriptions
Pros
Braintrust
- •Best-in-class for systematic LLM evaluation workflows
- •Integrates into CI/CD so evals run on every change
- •Strong support for complex multi-step agent evaluation
Supabase
- •Generous free tier for prototyping and small apps
- •pgvector eliminates need for a separate vector DB
- •Open-source with strong community
Cons
Braintrust
- Overkill for simple single-prompt applications
- Takes time to set up meaningful eval datasets
Supabase
- Postgres expertise helpful for advanced use
- Free tier has project pause after inactivity