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Best AI agent to review pull requests and suggest code fixes
Have AI agents review each pull request against surrounding code, flag bugs, and leave suggested fixes you can accept or reject. Here are 6 agents that can do it, with prices we checked on each vendor's own page.
Quick answer
- 6 agents compared, all with verified prices.
- Free plan available: Devin, Cursor, Cline, GitHub Copilot coding agent, Polylane, Parallax.
- We don't rank them. Pick by price, where it runs and the setup steps on each agent's page.
| Agent | What it does | Price (verified) | Free plan | Works on |
|---|---|---|---|---|
| Devin | Autonomous software engineer that plans, codes, tests and ships | $0 (Pro $20/mo; Max $200/mo; Teams $80/mo + $40/mo per dev seat)checked Oct 16, 2026 | Yes | Web, Slack |
| Cursor | Agent edits code, runs commands, background agents open PRs | $0 (Plus $8/mo, Grok models only; Premium $30/mo)checked Oct 16, 2026 | Yes | macOS, Windows, Linux, web |
| Cline | Open-source IDE agent | Free (open source) for individuals; pay for AI usage or bring your own key; Enterprise customchecked Oct 14, 2026 | Yes | VS Code, JetBrains |
| GitHub Copilot coding agent | Assign an issue; agent writes code and opens a PR | $10/mochecked Oct 14, 2026 | Yes | Web, IDE |
| Polylane | Connects your code, cloud and telemetry, flags real production issues, investigates root cause with cited evidence, checks pull requests for production risk, and writes the fix as a PR | Free $0; Starter $80/mo ($64/mo annual); Team $200/mo; Business $500/mo; Scale $800/mo; Premium $2,000/mo; Ultimate $5,000/mochecked Oct 16, 2026 | Yes | Web, Slack agent; works with Claude Code, Cursor, Codex, OpenCode, VS Code; AWS, Cloudflare, Vercel, Render, Fly.io, Kubernetes, Supabase and more |
| Parallax | Runs Claude Code, Codex, Cursor and 40+ other coding agents side by side; its Captain splits one ask into tasks, steers agents that drift, reviews the work natively and returns pull requests, and moves work to your next subscription when one hits its limit | Free to start with $50 Conifer credit and 5 free reviews; after that use your own Claude/Codex subscriptions or Conifer per-model rates (conifer.build/models)checked Oct 17, 2026 | Yes | Mac app; works with Claude Code, Codex, Cursor, Gemini CLI, OpenCode, Amp, pi and your own subscriptions |
Also able to do this, but we haven't confirmed the price yet: Claude Code Review.
FAQ
- What is the best AI agent to review pull requests and suggest code fixes?
- We compare 6 agents with verified prices that can review pull requests and suggest code fixes. We do not rank a single winner — pick by price, free plan and where it runs.
- Which AI agents to review pull requests and suggest code fixes have verified prices?
- Devin: $0 (Pro $20/mo; Max $200/mo; Teams $80/mo + $40/mo per dev seat); Cursor: $0 (Plus $8/mo, Grok models only; Premium $30/mo); Cline: Free (open source) for individuals; pay for AI usage or bring your own key; Enterprise custom; GitHub Copilot coding agent: $10/mo; Polylane: Free $0; Starter $80/mo ($64/mo annual); Team $200/mo; Business $500/mo; Scale $800/mo; Premium $2,000/mo; Ultimate $5,000/mo; Parallax: Free to start with $50 Conifer credit and 5 free reviews; after that use your own Claude/Codex subscriptions or Conifer per-model rates (conifer.build/models).
- Is there a free plan among the best AI agents to review pull requests and suggest code fixes?
- Yes: Devin, Cursor, Cline, GitHub Copilot coding agent, Polylane, Parallax.
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