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Braintrust vs Humanloop

Braintrust logo

Braintrust

Software Development

The active observability platform for agents

From
Free
Rated
-
Full reviewWebsite
Humanloop logo

Humanloop

Software Development

The LLM evals platform for enterprises

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Braintrust enterprise plan pricing not published, requires custom quote; Humanloop no published pricing for standard plans; customers must contact sales for quotes
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Braintrust and Humanloop actually diverge.

Attributes where Braintrust and Humanloop differ
AttributeBraintrustHumanloop
Pricing modelfreemiumusage-based

Identical on both: starting price (Free), free tier (Yes), platforms (Web), user rating (Not yet rated), category (Software Development).

What people use each for

The jobs each tool is most often brought in to do.

Braintrust

  • Monitoring production AI agents for qualitynot Humanloop
  • Detecting patterns in agent failuresnot Humanloop
  • Defining quality expectations before shipping agentsnot Humanloop
  • Tracking prompts and tool calls in productionnot Humanloop

Humanloop

  • LLM prompt management and evaluationnot Braintrust
  • AI workflow automation and testingnot Braintrust
  • Model monitoring and logging at scalenot Braintrust

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Braintrust

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

Humanloop

  • No published pricing for standard plans; customers must contact sales for quotes
  • Billing based on logs created per API call, making costs unpredictable without usage estimates
  • Separate charges apply from AI providers (OpenAI, Anthropic, etc.) using customer's own API keys, adding external costs

Pricing, plan by plan

Braintrust

Free
  • StarterFree
    • $10 model credits monthly included
    • 1 GB processed data monthly
    • 10000 scores monthly
  • Pro$249/month
    • $249 model credits monthly included
    • 5 GB processed data monthly
    • 50000 scores monthly
  • Enterprise$null/month
    • Custom data retention and export capabilities
    • RBAC and premium support
    • On-premises or hosted solutions available

Humanloop

Free
  • Free TrialFree
    • 2 members
    • 50 evaluation runs
    • 10,000 logs per month
  • Startup Program$null/contact-sales
    • Tailored pricing for early-stage, VC-backed startups
  • Enterprise$null/contact-sales
    • Custom pricing
    • SSO + SAML authentication
    • Role-based access controls

Which should you pick?

Choose Braintrust if

  • You want to start without paying.
Braintrust review

Choose Humanloop if

  • You want to start without paying.
Humanloop review

Questions people ask

Is Braintrust or Humanloop better?
Neither clearly leads. Braintrust starts at Free and Humanloop at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Braintrust or Humanloop?
Braintrust starts at Free and Humanloop at Free.
Does Braintrust or Humanloop run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Braintrust for free?
Both have a free tier, so you can try either at no cost before committing.
What is Braintrust best used for?
Braintrust is most often used 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. Of those, monitoring production ai agents for quality and detecting patterns in agent failures are not what Humanloop is typically brought in for.

Answered from the vendors’ own pages

Braintrust: 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
Humanloop: How much does Humanloop cost?

Humanloop offers a free trial with 2 members and 10,000 logs per month. Startup program and Enterprise plans require contacting sales for custom pricing based on usage needs.

Source
Braintrust: 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
Humanloop: What are the limits on Humanloop's free trial plan?

Free trial includes 2 members, 50 evaluation runs, and 10,000 logs per month with access to all features at limited volume.

Source
Braintrust: 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
Humanloop: How is Humanloop usage billed?

Humanloop bills based on logs created per API call to prompts, tools, evaluators, or flows. Separate charges apply from external AI providers like OpenAI and Anthropic using the customer's own API keys.

Source
Humanloop: Does Humanloop offer discounts for nonprofits or academics?

Academic and nonprofit pricing is available upon request, requiring contact with sales for customized rates.

Source
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