An AI never approves
Breakspec’s AI can suggest rules, but only a person can approve them, and only approved rules can stop a merge.
Compare · Checked 12 October 2026
Breakspec vs GitHub Copilot code review
Copilot code review is built into GitHub. It reviews pull requests, suggests fixes, and can pass them to Copilot’s coding agent. GitHub’s own docs say it “is not guaranteed to spot all problems”. Breakspec gives you something you can check for yourself: an example that fails.
What GitHub Copilot code review does
- Each review uses AI credits. GitHub estimates $0.05 to $1 per review on its lighter setting, and $0.25 to $5 on the default one.
- With an optional setting that’s still in preview, Copilot can approve a pull request, and that approval counts toward the approvals your repository requires.
- On private repositories it also uses GitHub Actions minutes.
How Breakspec is different
The same answer every time
Rechecking uses the same examples and no AI, so the same code always gets the same result.
Works outside GitHub
Breakspec runs from your terminal, before each commit, in any CI, and inside Claude Code, Cursor or Codex.
| GitHub Copilot code review | Breakspec | |
|---|---|---|
| How it finds bugs | An AI reads the change | Runs your code on hundreds of examples |
| What you get back | A comment about what might be wrong | An example that breaks your code, which you can run yourself |
| Who decides what “correct” means | The AI, guided by your instructions | You, by approving rules |
| Cost of checking every pull request | $0.05 to $5 per review, by GitHub’s estimate | No AI cost. Rechecking doesn’t use AI |
| Can it block a merge? | It can approve one, if you turn that on | Yes, when one of your approved rules breaks |
| After a fix | Reviews the new code again | Reruns the example that failed, and notices if the fix cheats |
What GitHub Copilot code review does better
- It’s already in GitHub, so there’s nothing to install.
- It reviews every file in a pull request, not just functions with rules.
Can I use both?
Yes. Let Copilot review the pull request, and let Breakspec check that the logic is right, with an example to show it.
Sources
Checked on 12 October 2026, from GitHub Copilot code review’s own docs and pricing pages. Prices and features change; if something here is out of date, tell us at sales@breakspec.com and we’ll fix it.
Other comparisons
Your agent’s own testsTests the agent wroteCodeRabbitAI code reviewGreptileAI code reviewCursor BugbotAI code reviewClaude Code ReviewAI code reviewCodex code reviewAI code reviewQodoAI code reviewKiroSpec-driven editorDiffblue CoverTest generationSonarQubeStatic analysisWriting property tests yourselfTesting libraries