Graphite Diamond vs Semgrep Assistant
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
Graphite Diamond ranks higher on Top 11 (#5 vs #11) for Engineering leads and platform teams adding an AI reviewer to their pull request workflow. Fewest comments, highest hit rate per comment.
At a glance
| Graphite Diamond | Semgrep Assistant | |
|---|---|---|
| Top 11 rank | #5 / CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026 | #11 / CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026 |
| Score (out of 9.4) | 8.4 | 7.4 |
| Best for | Stacked PR workflows | Rules first, AI only for triage |
| Pricing | $$ ($20 to $30 per developer/mo) | $ ($40 per contributor/mo, free under 10 contributors) |
| HQ | San Francisco, USA | San Francisco, USA |
| Founded | 2020 | 2017 |
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
Semgrep Assistant
Deterministic rules, AI used only to triage.
semgrep.dev/products/semgrep-code/See 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.