Softwr

Developer Tools · head to head

GNAT Pro vs Windsurf

GNAT Pro logo

GNAT Pro

Developer Tools

Software development environments and toolchains for Ada, C/C++ and Rust

From
On request
Rated
-
Full reviewWebsite
Windsurf logo

Windsurf

Software Development

The agentic IDE

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Windsurf has a free tier, so it costs nothing to try first.
  • Each has a real cost: GNAT Pro no pricing published on website; requires contacting AdaCore directly for quotes; Windsurf recently rebranded to Devin Desktop, creating product identity confusion

Where they differ

Only the attributes on which GNAT Pro and Windsurf actually diverge.

Attributes where GNAT Pro and Windsurf differ
AttributeGNAT ProWindsurf
Starting priceOn requestFree
Pricing modelquoteUnknown
Free tierNoYes
PlatformsWebmacOS, Linux, Windows
CategoryDeveloper ToolsSoftware Development
FoundedUnknown2021

Identical on both: user rating (Not yet rated).

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 GNAT Pro

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.

GNAT Pro

  • Building certified avionics software meeting DO-178B/C standardsnot Windsurf
  • Developing automotive embedded systems with ISO-26262 compliancenot Windsurf
  • Integrating Ada, C/C++, and Rust components in single codebasenot Windsurf
  • Managing software supply chain vulnerabilities and SBOMsnot Windsurf
  • Supporting long-lived software systems spanning decadesnot Windsurf

Windsurf

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

Where each one falls short

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

GNAT Pro

  • No pricing published on website; requires contacting AdaCore directly for quotes
  • Vendor indicates per-user, per-year subscription model but does not disclose specific costs

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

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

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 GNAT Pro if

Nothing in the data separates GNAT Pro from Windsurf on the points above - pick on price and on how each one feels to use.

GNAT Pro 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 GNAT Pro or Windsurf better?
Neither clearly leads. GNAT Pro starts at On request and Windsurf at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Windsurf?
Windsurf has a free tier; the other does not. Paid plans start at On request for GNAT Pro and Free for Windsurf.
Does GNAT Pro or Windsurf run on more platforms?
GNAT Pro runs on Web. Windsurf runs on macOS, Linux, Windows.
Can I use Windsurf for free?
Yes. Windsurf has a free tier, so you can try it without paying. GNAT Pro starts at On request.
What is GNAT Pro best used for?
GNAT Pro is most often used for building certified avionics software meeting do-178b/c standards, developing automotive embedded systems with iso-26262 compliance, integrating ada, c/c++, and rust components in single codebase, managing software supply chain vulnerabilities and sboms. Of those, building certified avionics software meeting do-178b/c standards and developing automotive embedded systems with iso-26262 compliance are not what Windsurf is typically brought in for.
What can GNAT Pro do that Windsurf cannot?
Windsurf covers Cascade AI agent, Agentic programming, Context-aware assistance, Automated command execution.

Answered from the vendors’ own pages

GNAT Pro: How much does GNAT Pro cost?

GNAT Pro pricing is not published on the website. Customers must request a pricing quote by contacting AdaCore directly or speaking with a GNAT Pro expert.

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
GNAT Pro: What is GNAT Pro licensing model?

GNAT Pro is sold on a per-user, per-year basis with no license locks. Customers can request pricing for their specific needs.

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
Share

Related pages

More on GNAT Pro

More on Windsurf

Keep looking

Other head to heads