GitHub Copilot Code Review vs Graphite Diamond
Side-by-side from the Top 11 ranking of CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026. Last verified July 24, 2026.
The short answer
GitHub Copilot Code Review ranks higher on Top 11 (#2 vs #5) for Engineering leads and platform teams adding an AI reviewer to their pull request workflow. Already bundled with Copilot seats you likely pay for.
At a glance
| GitHub Copilot Code Review | Graphite Diamond | |
|---|---|---|
| Top 11 rank | #2 / CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026 | #5 / CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026 |
| Score (out of 9.4) | 9 | 8.4 |
| Best for | Zero new vendors for GitHub shops | Stacked PR workflows |
| Pricing | $ ($19 to $39 per user/mo) | $$ ($20 to $30 per developer/mo) |
| HQ | San Francisco, USA | San Francisco, USA |
| Founded | 2008 | 2020 |
GitHub Copilot Code Review
Already bundled with Copilot seats you likely pay for.
github.com/features/copilotSee full entry in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026
Graphite Diamond
Fewest comments, highest hit rate per comment.
graphite.dev/diamondSee full entry in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.