The observability and evaluation platform for AI agents.
Category: Code & Development. Pricing: priced per the vendor's website. Last modified: 2026-09-11.
Braintrust is an integrated platform designed to monitor, evaluate, and optimize AI agents throughout the development lifecycle. It enables teams to inspect agent traces in real time, conduct experiments with versioned datasets, and leverage automated tools to improve model quality and performance before and after deployment.
Not editorially tested: One AI Guide has not published a complete hands-on test record for this tool.
Published by LUMIVEX for One AI Guide.
Editorial lead: Said El Moussaoui. Our methodology is published at /how-we-rate.
Official vendor website: see the vendor link below.
Braintrust is a code & development tool. The observability and evaluation platform for AI agents.
The One AI Guide catalog currently records Braintrust as priced per the vendor's website. This is a directory summary, not a current vendor quote; always check the vendor's site for the latest plans before signing up.
The catalog does not currently record Braintrust as Free or Freemium. That is not proof that no trial or limited offer exists; check the vendor's site for current options.
Common use cases include Debugging production agent failures and tool call errors., Creating regression test datasets from live production traces., Continuously monitoring LLM cost, latency, and accuracy metrics., and Optimizing prompts and model configurations through automated evaluation loops..
The One AI Guide catalog currently highlights these strengths: Real-time visibility into agent traces, tool calls, and performance metrics.; Comprehensive evaluation workflows allowing side-by-side model testing and automated scoring.; Platform-agnostic architecture that integrates with existing stacks without requiring framework rewrites..