Braintrust
Stores production agent traces in its own datastore, turns the patterns it finds there into evaluation datasets, and scores every release against them.
Find alternatives to Braintrust
Three plans: Starter at $0 a month (a recurring monthly allowance of $10 in model credits, 1 GB of processed data, 10,000 scores and 14-day retention, with unlimited users, projects, datasets, playgrounds and experiments), Pro at $249 a month ($100 in model credits, 5 GB, 50,000 scores, 30-day retention, custom charts, environments, RBAC and priority support), and Enterprise at custom pricing with on-premises or hosted deployment. Both self-serve plans meter beyond their allowance -- +$4 per GB on Starter, +$3 per GB on Pro. Qualifying startups are offered 6-12 months of Pro free.
What it does
- Evaluation and observability
How it compares
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Galileo
Between Galileo and Braintrust, each vendor takes a fundamentally different approach to evals, agent monitoring, and runtime protection
Official documentation · 19 Sep 2026 -
LangSmith
Compare LangSmith and Braintrust to see how a complete agent engineering platform differs from an evaluation-focused tool.
Official documentation · 19 Sep 2026
Sources
- Pricing
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Plan names, the $0 and $249 rates, every allowance and both overage rates quoted from the pricing page, read 2026-09-18.
- Description
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Company disclosure · 18 Sep 2026
Own homepage: "Ship quality agents at scale -- Discover patterns in production, turn them into evals, and improve quality with every release." Its named surfaces are Observe, Evaluate, Discover, the Loop agent, pattern automations and Brainstore, a datastore the page describes as built for agent traces. They are features inside the three plans rather than separately priced line items, so they are one record.
- Sold within
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Bought on its own, by plan; no parent offering is involved.
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