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Software Development · head to head

DeepSource vs GNAT Pro

DeepSource logo

DeepSource

Software Development

Automated code review and AI-powered code fixes for engineering teams.

From
Free
Rated
-
Full reviewWebsite
GNAT Pro logo

GNAT Pro

Developer Tools

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

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only DeepSource has a free tier, so it costs nothing to try first.
  • Each has a real cost: DeepSource open Source plan caps at 1,000 reviewed pull requests and 1,000 formatting runs per month.; GNAT Pro no pricing published on website; requires contacting AdaCore directly for quotes

Where they differ

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

Attributes where DeepSource and GNAT Pro differ
AttributeDeepSourceGNAT Pro
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo
Platformsweb, apiWeb
CategorySoftware DevelopmentDeveloper Tools

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 DeepSource

  • Automated pull request review
  • AI-powered autofix
  • Automated code formatting
  • Monorepo support
  • API and webhooks
  • Bring-your-own-key AI

Only in GNAT Pro

Nothing recorded that DeepSource does not also cover.

What people use each for

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

DeepSource

  • Automating pull request code review for engineering teamsnot GNAT Pro
  • Auto-fixing detected code issues with AInot GNAT Pro
  • Enforcing code formatting standards automaticallynot GNAT Pro
  • Scanning large monorepos for quality issuesnot GNAT Pro
  • Running self-hosted AI review in regulated environmentsnot GNAT Pro

GNAT Pro

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

Where each one falls short

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

DeepSource

  • Open Source plan caps at 1,000 reviewed pull requests and 1,000 formatting runs per month.
  • AI Review beyond the included credit is billed per 10K lines of code, which can add unpredictable cost.
  • Self-hosted deployment and BYOK AI are Enterprise-only features.
  • Enterprise pricing is not published and requires contacting sales.

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

Pricing, plan by plan

DeepSource

Free
  • Open SourceFree
    • Free for public repositories
    • 1,000 pull requests reviewed/month
    • 1,000 automated formatting runs/month
  • Team$24/month
    • Unlimited repositories and pull request reviews
    • $100 annual AI Review credit per user
    • Monorepo support
  • Enterprise$undefined/month
    • Self-hosted deployment
    • Bring-your-own-key AI Review
    • SSO

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Which should you pick?

Choose DeepSource if

  • You need automated pull request review.
  • You want to start without paying.
  • You work on web, api.
  • You also want ai-powered autofix.
DeepSource review

Choose GNAT Pro if

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

GNAT Pro review

Questions people ask

Is DeepSource or GNAT Pro better?
Neither clearly leads. DeepSource starts at Free and GNAT Pro at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, DeepSource or GNAT Pro?
DeepSource has a free tier; the other does not. Paid plans start at Free for DeepSource and On request for GNAT Pro.
Does DeepSource or GNAT Pro run on more platforms?
DeepSource runs on web, api. GNAT Pro runs on Web.
Can I use DeepSource for free?
Yes. DeepSource has a free tier, so you can try it without paying. GNAT Pro starts at On request.
What is DeepSource best used for?
DeepSource is most often used for automating pull request code review for engineering teams, auto-fixing detected code issues with ai, enforcing code formatting standards automatically, scanning large monorepos for quality issues. Of those, automating pull request code review for engineering teams and auto-fixing detected code issues with ai are not what GNAT Pro is typically brought in for.
What can DeepSource do that GNAT Pro cannot?
DeepSource covers Automated pull request review, AI-powered autofix, Automated code formatting, Monorepo support.

Answered from the vendors’ own pages

DeepSource: What does DeepSource cost?

The Open Source plan is free for public repos; Team is $24 per user/month billed yearly with a $100 annual AI Review credit; Enterprise is custom-priced with self-hosted options.

Source
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
DeepSource: Is there a free plan, and what are its limits?

Yes, the free Open Source plan covers public repositories with 1,000 pull requests reviewed per month and 1,000 automated formatting runs per month.

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
DeepSource: How is AI Review usage metered?

Team plans include a $100 annual AI Review credit per user, with additional usage billed at Standard ($8/10K LOC) or Advanced ($15/10K LOC) tiers.

Source
DeepSource: Can I change or cancel my plan?

Yes, subscriptions can be downgraded or canceled at any time.

Source
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