AI code review agents
Agents that read your pull requests, comment on bugs and risky changes, and in some cases fix what they flag.
By weekly package downloads, the leaders are OpenAI Codex (25.6M), Claude Code (14.8M), Augment Code (35.6K). By VS Code extension installs, the leaders are GitHub Copilot (78.6M), Claude Code (27.1M), OpenAI Codex (15.2M). By GitHub stars, the leaders are Claude Code (150K), OpenAI Codex (128K), Cursor (33.3K). The fastest grower over the last 30 days is OpenAI Codex, with downloads up 21%. As of Oct 6, 2026.
| # | Agent | Category | Pulse | Downloads 7d | 7d | 30d | VS Code installs | Stars | Latest release | Price | Last 90 days |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
OpenAI CodexOpenAI |
Terminal | 82 | 25.6M | up 5.7% | up 21.2% | 15.2M | 128K+153/day | 0.160.1yesterday | Free + $8/mo | |
| 3 |
Claude CodeAnthropic |
Terminal | 80 | 14.8M | up 11.6% | down 36.4% | 27.1M | 150K+161/day | 2.1.290yesterday | $20/mo | |
| 8 |
CursorAnysphere (owned by SpaceX) |
IDEs | 71 | — | — | — | — | 33.3K+3/day | — | Free + $20/mo | |
| 9 |
GitHub CopilotGitHub (Microsoft) |
IDEs | 70 | — | — | — | 78.6M | — | — | Free + $10/mo | |
| 31 |
DevinCognition |
Cloud | 53 | — | — | — | — | — | — | $20/mo | |
| 98 |
Augment CodeAugment Code |
IDEs | 31 | 35.6K | down 2.6% | down 12.6% | 780K | 285 | 1.2.0-prerele…yesterday | $20/mo | |
| No agents match that filter. | |||||||||||
Ranks are overall positions by Pulse Score. Click a column to sort by what matters to you. Methodology.
What AI review is good for
Review agents catch a useful share of bugs, missing edge cases and inconsistencies before a human looks, and they never get tired of large diffs. They are weaker at judging whether a change is the right design. Most teams use them as a first pass that a person then reviews, not as a replacement for approval.
What each agent does for this task
Only agents whose own documentation describes this use are listed. Checked Oct 6, 2026.
| Agent | What it does | Source |
|---|---|---|
| GitHub Copilot | Copilot code review comments on pull requests and can be set to review automatically | docs |
| Claude Code | Code Review and GitHub Actions run Claude on pull requests | docs |
| OpenAI Codex | Reviews GitHub pull requests when enabled or mentioned | docs |
| Cursor | Bugbot reviews pull requests for bugs and leaves comments | docs |
| Devin | Devin Review analyses pull requests and can fix the bugs it flags | docs |
| Augment Code | Augment Code Review posts review comments on pull requests | docs |
Setting one up
- Start on one repository and tune what it comments on, or it will be noisy.
- Decide who can trigger fixes. Some agents can push commits to the branch; keep that behind an explicit request.
- Compare on your own PRs. Run two agents on the same pull requests for a week and count useful comments.
More options by job: the best AI agents in every category.