Side-by-Side Comparison
kani vs codex
Compare open source repositories side by side. Stars, forks, code health, licensing, and community growth.
Recorded Stars Comparison
● model-checking/kani (3.5K)
● openai/codex (127.4K)
☆ 3.5Kkani stars
☆ 127.4Kcodex stars
+123.9KDifference
codexStar Leader (36.4x)
⚖️ Comparison Verdict
Star Popularity
codex Leads
+123.9K stars (36.4x ratio)
Forks & Derivatives
codex Leads
19.9K total community forks
Recent Maintenance
codex
Pushed 18h ago
Licensing
Apache-2.0
Both share open license
Side-by-Side Facts
| Metric | model-checking/kani ↗ | openai/codex ↗ |
|---|---|---|
| Description | A model checker for Rust programs. | Lightweight coding agent that runs in your terminal |
| GitHub Stars | ☆ 3,502 | ☆ 127,427 |
| Forks | 182 | 19,919 |
| Open Issues | 470 | 19,855 |
| Main Language | Rust | Rust |
| License | Apache-2.0 | Apache-2.0 |
| Last Push | Sep 30, 2026 | Oct 1, 2026 |
| GitHub Source | Open Source ↗ | Open Source ↗ |
⭐ Embed Verified Badges in README
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kani Badge
[](https://githubrepo.cloud/repo/model-checking/kani?utm_source=readme_badge)
codex Badge
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