Braintrust

AI drifts and regresses silently. With patterns surfaced automatically, the best teams can evaluate against expectations and iterate continuously.

See what actually happened in production. Inspect every agent trace and tool call, search across millions of logs, and track latency, cost, and quality in real time.

Define what good looks like before you ship. Run experiments against real datasets, compare prompts and models side-by-side, and score outputs with LLMs, code, or humans.

Understand agent behavior and improve quality at scale. Apply intelligence to your traces, identify important behavior, verify the evidence, test an improvement, and measure the result in one system.