Softwr

Software Development · head to head

Braintrust vs Windsurf

Braintrust logo

Braintrust

Software Development

The active observability platform for agents

From
Free
Rated
-
Full reviewWebsite
Windsurf logo

Windsurf

Software Development

The agentic IDE

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Braintrust enterprise plan pricing not published, requires custom quote; Windsurf recently rebranded to Devin Desktop, creating product identity confusion
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Braintrust and Windsurf actually diverge.

Attributes where Braintrust and Windsurf differ
AttributeBraintrustWindsurf
Pricing modelfreemiumUnknown
PlatformsWebmacOS, Linux, Windows
FoundedUnknown2021

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

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Braintrust

Nothing recorded that Windsurf does not also cover.

Only in Windsurf

  • Cascade AI agent
  • Agentic programming
  • Context-aware assistance
  • Automated command execution
  • Multi-file understanding
  • Intelligent code generation
  • Real-time debugging
  • Integrated terminal

What people use each for

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

Braintrust

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

Windsurf

  • Agentic developmentnot Braintrust
  • AI-assisted codingnot Braintrust
  • Complex project managementnot Braintrust
  • Automated coding tasksnot Braintrust
  • Learning new codebasesnot 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

Windsurf

  • Recently rebranded to Devin Desktop, creating product identity confusion
  • Cascade agent reached end-of-life on July 1, 2026, requiring migration to Devin Local
  • Free tier quota runs out quickly for active developers, within a couple days of coding
  • Pricing increased significantly in March 2026 overhaul, moving from credit-based to daily/weekly quotas
  • OpenAI acquisition raises concerns about long-term product direction diverging from Codeium's vision

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

Windsurf

Free
  • FreeFree
    • Light daily and weekly quotas
    • Unlimited tab autocomplete
    • Access to Cascade AI agent
  • Pro$20/month
    • Standard quotas
    • Windsurf proprietary SWE model
    • Cloud sessions for background work
  • Max$200/month
    • Heavy daily quotas
    • Long agent sessions
    • Frontier third-party models
  • Teams$40/month-per-user
    • All Pro features
    • Centralized billing
    • Usage analytics

Which should you pick?

Choose Braintrust if

  • You want to start without paying.
Braintrust review

Choose Windsurf if

  • You need cascade ai agent.
  • You want to start without paying.
  • You work on macOS, Linux, Windows.
  • You also want agentic programming.
Windsurf review

Questions people ask

Is Braintrust or Windsurf better?
Neither clearly leads. Braintrust starts at Free and Windsurf at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Braintrust or Windsurf?
Braintrust starts at Free and Windsurf at Free.
Does Braintrust or Windsurf run on more platforms?
Braintrust runs on Web. Windsurf runs on macOS, Linux, Windows.
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 Windsurf is typically brought in for.
What can Braintrust do that Windsurf cannot?
Windsurf covers Cascade AI agent, Agentic programming, Context-aware assistance, Automated command execution.

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
Windsurf: Does Windsurf support MCP (Model Context Protocol) integrations?

Yes. Windsurf supports MCP with integrations for 21 third-party tools for extending functionality and connecting to external systems.

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
Windsurf: What is Windsurf's current status as of 2026?

Windsurf rebranded to Devin Desktop in June 2026 and is backed by OpenAI after its 2025 acquisition. Cascade reached end-of-life on July 1, 2026, with Devin Local as the Rust-rewritten successor.

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
Share

Related pages

More on Braintrust

More on Windsurf

Keep looking

Other head to heads