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GNAT Pro vs Humanloop

GNAT Pro logo

GNAT Pro

Developer Tools

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

From
On request
Rated
-
Full reviewWebsite
Humanloop logo

Humanloop

Software Development

The LLM evals platform for enterprises

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Humanloop 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; Humanloop no published pricing for standard plans; customers must contact sales for quotes

Where they differ

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

Attributes where GNAT Pro and Humanloop differ
AttributeGNAT ProHumanloop
Starting priceOn requestFree
Pricing modelquoteusage-based
Free tierNoYes
CategoryDeveloper ToolsSoftware Development

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

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 Humanloop
  • Developing automotive embedded systems with ISO-26262 compliancenot Humanloop
  • Integrating Ada, C/C++, and Rust components in single codebasenot Humanloop
  • Managing software supply chain vulnerabilities and SBOMsnot Humanloop
  • Supporting long-lived software systems spanning decadesnot Humanloop

Humanloop

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

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

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

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 GNAT Pro if

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

GNAT Pro review

Choose Humanloop if

  • You want to start without paying.
Humanloop review

Questions people ask

Is GNAT Pro or Humanloop better?
Neither clearly leads. GNAT Pro starts at On request and Humanloop at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Humanloop?
Humanloop has a free tier; the other does not. Paid plans start at On request for GNAT Pro and Free for Humanloop.
Does GNAT Pro or Humanloop run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Humanloop for free?
Yes. Humanloop 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 Humanloop is typically brought in for.

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
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
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
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
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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