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Braintrust

The active observability platform for agents

As of 29 August 2026, Braintrust is free to use. Evaluation and observability platform for tracing, scoring, and improving AI agents in production. Softwr lists it under Software Development.

Overview

What Braintrust does

Evaluation and observability platform for tracing, scoring, and improving AI agents in production.

What people use it for

  • Monitoring production AI agents for quality
  • Detecting patterns in agent failures
  • Defining quality expectations before shipping agents
  • Tracking prompts and tool calls in production

The honest half

Where it falls short

Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Braintrust.

  • Enterprise plan pricing not published, requires custom quote
  • Pro plan includes 6-12 months free discount for startups only

Cross-shopped

What people choose instead of Braintrust

Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.

Pricing

What Braintrust costs

Taken from the vendor's own pricing page. Prices move, so check before you buy.

Starter

Free

  • $10 model credits monthly included
  • 1 GB processed data monthly
  • 10000 scores monthly
  • 14-day data retention
  • Unlimited users, projects, datasets, playgrounds, experiments

Pro

$249 /mo

  • $249 model credits monthly included
  • 5 GB processed data monthly
  • 50000 scores monthly
  • 30-day data retention
  • Extended storage: $0.50 per GB per month beyond included period
  • Custom charts, environments, priority support, RBAC

Enterprise

On request

  • Custom data retention and export capabilities
  • RBAC and premium support
  • On-premises or hosted solutions available
  • SAML SSO and BAA compliance agreements

Answered, with sources

Questions people ask

Each answer names the page it came from, so you can check it rather than take our word for it.

Does Braintrust have a free plan?

Braintrust Starter plan is free and includes $10 model credits monthly, 1 GB processed data, 10000 scores monthly, and 14-day data retention with unlimited users and projects. No credit card required.

Source
How much does the Braintrust Pro plan cost?

Braintrust Pro plan costs $249 per month and includes $249 model credits, 5 GB processed data, 50000 scores monthly, and 30-day data retention. Qualifying startups receive 6-12 months free.

Source
What are Braintrust's overage charges?

Braintrust charges overage rates after monthly allocations: model credits beyond monthly allotment are charged at token rates, data overage is $4 per GB on Starter or $3 per GB on Pro, scores overage is $2.50 per 1000 on Starter or $1.50 per 1000 on Pro. Extended data retention beyond the included period costs $0.50 per GB per month.

Source
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Softwr does not host reviews and shows no star rating for Braintrust, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.

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