Catch AI issues before users notice.
Trace every agent, score live traffic, and get alerted when AI model performance drops.
Free to start · No credit card · 5-min setup
Works with your stack. 50+ integrations, including:
See traces in minutes
One decorator. Automatic tracing. Quality scores on live traffic.
See every trace in real time
Every LLM call, tool invocation, and retrieval step logs automatically. Filter by score, model, or latency and find issues in seconds.
Set thresholds and get alerted
Run LLM-as-judge scorers on live traffic and set alert thresholds. Get notified in Slack before quality issues reach your users.
Real results from real teams.
<24hrs
To deploy a new frontier model
<10 min
Eval turnaround
50% → 90%+
Accuracy improvement
45x
More feedback
Notion, Dropbox, Zapier, and Coursera use Braintrust to ship better AI.
AI monitoring that actually catches issues.
Real-time AI performance metrics
Quality scores, latency percentiles, token usage, and cost tracked per request. Spot regressions the moment they appear.
Monitor every agent step automatically
Every tool call, retrieval step, and LLM call in a multi-step agent is captured as a span. See the full decision path for any request and know exactly where it went wrong.
Production traces become eval datasets
Tag a failing trace and see it land in your dataset. The same data you monitor in production becomes the test suite you run in CI.
Customer spotlight
“There are some problems we wouldn't know were problems without Braintrust.”
Sarah Sachs, AI Lead at Notion
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