Braintrust alternative

The Braintrust alternative that ships the fix

Braintrust scores your evals and watches production. If you adopted it to make your agents stop failing, the real alternative isn't another scorer — it's the loop that diagnoses the failure, ships a tested fix, and verifies it on real traffic. Here's how Converra differs.

At a glance

Dimension
Braintrust
Converra
Primary job
Evaluate & observe
Diagnose, fix & verify
What you get
Eval scores, logs, datasets
Simulation-tested fixes + a production verdict
Who writes the tests
You author datasets and scorers
Personas + golden scenarios derived from your traffic
After a failure is found
You investigate and fix
Converra generates and head-to-head tests the fix
Deployment
Not included
Governed rollout + automatic rollback
Did the fix actually work?
Re-run evals manually
Verified on real traffic — verified, not fixed, or confounded
Engineering time
Ongoing — eval maintenance is your team's job
Near-zero — the loop runs without engineering cycles

They live on different shelves

  • →Braintrust is measurement: eval datasets, custom scorers, and logs. It tells you a test set passed or a metric moved.
  • →Converra is improvement: it diagnoses the failure, generates a fix, simulation-tests it head-to-head, proposes a governed deployment, and verifies the result on production traffic.
  • →The honest read: if scoring isn't turning into fewer failures, you don't need a different eval tool — you need the loop that closes after the score.

Frequently asked questions

Is Converra a drop-in replacement for Braintrust?

Not exactly — and that is the point. Braintrust is an evaluation and observability platform: it helps you score test sets and watch production. Converra is the autonomous improvement loop: it diagnoses the failure, generates a fix, simulation-tests it head-to-head, deploys it under guardrails, and verifies the result on real traffic. If you adopted Braintrust to stop your agents from failing, the alternative that does that end-to-end is Converra.

Why look for a Braintrust alternative?

Teams usually start shopping for a Braintrust alternative when scoring isn't translating into fewer production failures. Evals tell you a test set passed; they don't tell you why a real conversation failed, generate the fix, or prove the fix worked after you shipped. Converra exists to close exactly that gap.

Can I use Braintrust and Converra together?

Yes. Keep Braintrust for eval discipline and CI scoring if it fits your workflow; add Converra to turn the failures you surface into shipped, simulation-tested, production-verified fixes. They sit on different shelves — measurement vs. improvement — so they compose cleanly.

How does Converra test a fix before it ships?

Converra builds synthetic personas and golden scenarios from your real production patterns, then runs each candidate fix head-to-head against the current baseline on the same scenarios. A variant only wins if its head-to-head lift is strictly positive and it breaks no golden scenario — so you don't trade one cohort's success for another's regression.

What proof is there that this works?

On Salespeak's production orchestrator agent, Converra eliminated 100% of hallucinated pricing/VAT/infrastructure claims and cut routing failures 74% — verified on real production traffic, with zero engineering hours spent generating and testing the fixes.

Related comparisons: vs Braintrust · LangSmith vs Braintrust · Braintrust vs Galileo · all comparisons

Score it — or just fix it

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