Braintrust
End-to-end evaluation platform combining evals, logging, prompt management, and an AI proxy — used by enterprises like Notion and Stripe.
Pricing
Free tier
Hybrid
Adoption
→StableLicense
Open Source
Data freshness
—Overview
What is Braintrust?
Enterprise AI evaluation, logging, and prompt management platform
Key differentiator
“End-to-end evaluation platform combining evals, logging, prompt management, and an AI proxy — used by enterprises like Notion and Stripe.”
Capability profile
Strength Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
Catalog data
Catalog data
Catalog data
↓ Weaknesses
Catalog data
Catalog data
Fit analysis
Who is it for?
✓ Best for
Evaluating LLM outputs systematically
Recommended use case
Prompt versioning and A/B testing
Recommended use case
Logging and tracing AI application behavior
Recommended use case
✕ Not a fit for
Non-LLM ML model evaluation
Not recommended
Simple one-off testing
Not recommended
Cost structure
Pricing
Free Tier
Available
Free tier with usage limits
Starts at
Free (OSS) / Team plans available
Model
Hybrid
Enterprise
Available
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Next step
Get Started with Braintrust
Step-by-step setup guide with code examples and common gotchas.