Evaluate, monitor, and improve AI in one platform
Manage prompts, run evals, monitor production quality, and gate releases.
Free to start · No credit card · 5-min setup

Trusted by AI teams at
The full AI development loop in one platform
Instrument once. Iterate fast. Deploy with confidence. See your first traces in minutes.
from braintrust import traced
@traced
async def my_agent(query):
prompt = braintrust.invoke(
"support-prompt",
input={"query": query},
)
return await llm(prompt)Eval(
"Customer support",
data=golden_dataset,
task=my_agent,
scores=[
Factuality,
Coherence,
],
)- name: LLM eval gate
uses: braintrustdata/eval-action@v1
with:
api_key: ${{ secrets.BRAINTRUST_API_KEY }}
fail_on_regression: trueWhat changes when Braintrust is part of the workflow
10x
Faster issue resolution
<10 min
Eval turnaround
25%
Accuracy improvement
45x
More feedback
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Works how your team works
Engineers instrument in code and run evals in CI. Others can iterate on prompts in the UI. Everyone sees the same experiments, the same scores, and the same production data.
For engineers
from braintrust import traced
import braintrust
@traced
async def my_agent(query):
# Pull versioned prompt from UI
prompt = braintrust.invoke(
"support-prompt",
input={"query": query},
)
return await llm(prompt)Instrument once with one decorator. Pull versioned prompts from the UI at runtime. No redeploy needed when wording needs to be tweaked.
For PMs & domain experts

Compare any two experiments side by side. See exactly what improved, what regressed, and what it costs before anything touches production.
Built for LLMops from the start
Prompt management and versioning
Every prompt change creates a new version. Deploy to production from the UI without a code deploy. Roll back instantly if quality drops. No more prompt strings buried in git.
Experiment tracking across models and providers
Compare different models in one experiment. Track every run with full reproducibility with prompt version, model, dataset, and scores all recorded automatically.
One platform for tracing, evals, and CI/CD gates
Tracing, evals, prompt management, datasets, CI/CD gates, and production monitoring all connected in one workflow. No integrations to maintain and no data syncing between tools.
What our customers say
“Braintrust helps us ship AI agents customers actually trust.”
Mohsen Sardari, VP Engineering at Bill

Stop shipping on vibes
Set up your first eval in minutes
Free to start · No credit card required
Get started free