Updated November 2026
AI code review tools: 10 compared on price, Git host and accuracy
AI code review tools read each pull request and comment on bugs before a person reviews it. The ten worth comparing in November 2026 are CodeRabbit, Qodo, Greptile, GitHub Copilot code review, Cursor Bugbot, Graphite, Sourcery, Bito, the open-source PR-Agent and IonWarp. Choose by Git host first, then by how you want to pay: per developer, per review or per workspace.
Who wrote this: Published by Winding AI, Inc., the company that makes IonWarp, one of the ten tools below. Where a rival is cheaper, covers more Git hosts or scores higher, we say so, and every price links to the vendor's own page.
The short answer, by situation
- You're on GitLab, Bitbucket or Azure DevOpsCodeRabbit, Cursor Bugbot, Qodo and PR-Agent review on all four big hosts. IonWarp and Graphite are GitHub only.
- You want the best published accuracyGreptile leads Martian's independent tracker (65.2% F1). Qodo leads IonWarp's own benchmark (58.5%, above IonWarp).
- You already pay for GitHub CopilotTry Copilot code review first. It's included in Copilot Pro ($10 a month) and Business ($19 per user a month).
- You'd rather pay per review than per seatGreptile ($1 a credit, a Base review is 1 credit) or Cursor Bugbot (Cursor says reviews average $1.00 to $1.50).
- You want the lowest per-seat priceSourcery Pro and Bito Team, both $12 per developer a month billed annually.
- You work in stacked pull requestsGraphite: the AI reviewer comes with stacking, an inbox and a merge queue.
- Code can't leave your networkPR-Agent: open source (MIT), self-hosted, and you pay only your model provider.
- You're a small GitHub team that wants more than bug reviewIonWarp: one workspace price with seats included. The free plan (3 seats) has Code Review and Security Review; Pro ($49 a month, 5 seats) adds cost, docs, DevOps and two more; SOC 2 review needs Max ($149, 10 seats).
The ten tools side by side
| Tool | List price | Free option | Git hosts | Self-host |
|---|---|---|---|---|
| CodeRabbit | $24 per developer/mo annual ($30 monthly); Team $48 ($60) | Public repos; 14-day trial | GitHub, GitLab, Bitbucket, Azure DevOps | Enterprise only |
| Qodo | $30/mo for 2,000 credits (about 14 reviews, Qodo's estimate) up to $240 for 16,000 | 14-day trial; open-source programme | GitHub, GitLab, Bitbucket, Azure DevOps; Gerrit on Enterprise | Enterprise (on-prem or air-gapped) |
| Greptile | $1 per credit, no seat fees; Base review 1 credit, Plus 3, Apex 10 | 1 developer, 50 credits/mo | GitHub, GitLab, Bitbucket, Gitea | Enterprise |
| Copilot code review | In Copilot Pro $10/mo or Business $19/user/mo; draws GitHub AI Credits | None (Copilot Free has no code review) | GitHub; Azure DevOps | No |
| Cursor Bugbot | Usage on a Cursor plan (Premium $30/mo, Teams from $30/user/mo); average review $1.00 to $1.50 | None | GitHub, GitLab, Bitbucket, Azure DevOps | No |
| Graphite | $40 per user/mo annual (Team, unlimited AI reviews); Starter $20 (limited) | Hobby: personal repos, limited AI reviews | GitHub | No |
| Sourcery | $12 per developer/mo annual ($15 monthly); Team $24 ($30) | Public repos; 14-day trial | GitHub, GitLab | Enterprise |
| Bito | $12 per seat/mo annual ($15 monthly), 5,000 lines/seat/mo then $5 per 1,000 | 14-day trial | GitHub, GitLab, Bitbucket | $5/seat add-on on Professional |
| PR-Agent | Free, MIT licence; you pay your model provider | Free | GitHub, GitLab, Bitbucket, Azure DevOps, Gitea | Yes |
| IonWarp (ours) | $0 for 3 seats; Pro $49/mo for 5; Max $149/mo for 10; +$29 per extra seat | Starter plan, no time limit | GitHub only | No |
US list prices before tax. If a linked pricing page disagrees with this table, the pricing page wins.
What a team pays each month
Our arithmetic from the list prices above, using annual billing where offered and the cheapest plan with private-repo PR review.
| Tool and plan | 5 devs | 10 devs | 25 devs | Watch for |
|---|---|---|---|---|
| IonWarp Pro / Max | $49 | $149 | $584 | Max with 15 extra seats at 25. Credits pool per workspace; the pricing page doesn't say how many a review uses. |
| Sourcery Pro | $60 | $120 | $300 | Security scans need Team ($24). |
| Bito Team | $60 | $120 | $300 | $5 per 1,000 lines past 5,000 lines per seat. |
| Copilot Business | $95 | $190 | $475 | Also buys the coding assistant; reviews draw AI Credits. |
| CodeRabbit Essentials | $120 | $240 | $600 | Only developers who open PRs are billed. |
| Graphite Team | $200 | $400 | $1,000 | Includes stacking and merge queue. |
Usage-priced tools follow review count, not headcount. Per 100 reviews: Greptile is about $100 at Base depth (Plus is $300); Cursor Bugbot about $100 to $150 on top of the Cursor plan; Qodo about $210, using its own estimate that 16,000 credits ($240) cover about 114 reviews. PR-Agent costs whatever your model API charges.
What this shows: at five developers IonWarp has the lowest flat price here. At ten, Sourcery and Bito cost less ($120 against $149). At 25, IonWarp ($584) is close to CodeRabbit Essentials ($600) and about twice Sourcery or Bito.
How accurate are they?
Two public scorecards grade several of these tools on the same pull requests. Neither covers all ten; treat them as a shortlist, not a verdict.
Martian's online tracker (independent)
Martian's Code Review Bench samples fresh open-source PRs where review bots commented and uses an LLM to judge whether developers acted on each comment. Last month's leaderboard covered 17,768 scored PRs:
| Tool on the tracker | F1 | Precision | Recall |
|---|---|---|---|
| Greptile | 65.2% | 82.9% | 53.7% |
| Qodo Code Review | 62.3% | 75.3% | 53.1% |
| CodeRabbit | 61.0% | 70.0% | 54.1% |
| GitHub Copilot | 60.6% | 67.4% | 55.1% |
| Cursor | 56.9% | 71.8% | 47.1% |
Only the tools compared on this page are shown. The full leaderboard also ranks Cubic (63.2%) and Devin (62.0%) above CodeRabbit. Graphite is tracked but falls outside the 15 tools shown. IonWarp, Sourcery, Bito and PR-Agent are not tracked.
IonWarp's benchmark (run by the company that publishes this page)
IonWarp ran 50 PRs with 158 known issues from Martian's open offline dataset. Martian has not certified the run, and the apps were run between January and April 2026, so they may have improved since. Full table and method.
| Reviewer | F1 | Precision | Recall |
|---|---|---|---|
| Qodo v2 | 58.5% | 55.4% | 62.0% |
| IonWarp Code Review on Muse Spark 1.3 (its retry model) | 56.6% | 65.3% | 50.0% |
| Cursor Bugbot | 51.4% | 56.9% | 46.8% |
| Greptile v4.1 | 51.1% | 50.9% | 51.3% |
| IonWarp Code Review on DeepSeek V4.1 Flash (its default) | 49.2% | 49.7% | 48.7% |
| CodeRabbit | 42.2% | 32.6% | 59.5% |
The honest read: Qodo beats IonWarp on F1 in IonWarp's own test, and IonWarp's default model scores below Greptile and Bugbot there. Across IonWarp's review types, an app has the highest F1 in 5 of the 6 where apps were graded. The scorecards also disagree on CodeRabbit (noisy offline, mid-table online), so a trial on your own repositories tells you more than either.
Each tool in brief
CodeRabbitBest for any Git host
Reviews PRs on all four big hosts, plus in the IDE and CLI. It learns from replies, offers one-click fixes and runs pre-merge checks; Team ($48) adds test generation and triage. Past an hourly allowance, extra reviews cost $0.25 per reviewed file.
Pick it if you're not on GitHub or want the widest feature set. Skip it if comment volume is already a problem: it had the lowest precision in IonWarp's test.
QodoBest for cross-repo checks
Multi-agent review with a rules system, PR history and a cross-repo map that flags changes that break other services. Credits are pooled across the team ($60 buys 4,000), overage costs the same $0.015 per credit, and users and repos are unlimited. No permanent free tier.
Pick it for strong scores on both scorecards. Skip it for hundreds of PRs a month on a small budget.
GreptileBest for pay-per-review
Builds a graph of your whole repository and reviews each PR with that context. Credits are shared by the organization and you choose the depth per review. Pre-Series A startups can get 500 free credits a month for six months.
Pick it for the top independent score and a bill that tracks usage. Skip it if you need a fixed monthly cost.
GitHub Copilot code reviewBest if you already pay for Copilot
Request Copilot as a reviewer on a GitHub PR, or on a diff in your editor. It comes with Copilot Pro and Business and draws on GitHub AI Credits ($0.01 each past your allowance). By default it leaves a "Comment" review that doesn't count toward required approvals; admins can let it approve.
Pick it if your team has Copilot seats. Skip it on GitLab or Bitbucket.
Cursor BugbotBest for Cursor teams
Cursor's reviewer, which Cursor says targets hard logic bugs with a low false-positive rate; suggested fixes open in the Cursor editor. There's no separate subscription: reviews bill as usage on a paid Cursor plan, and Cursor puts the average at $1.00 to $1.50 a review.
Pick it if your developers work in Cursor. Skip it if nobody does.
GraphiteBest for stacked pull requests
A GitHub review platform built around stacked PRs, a PR inbox and a merge queue; its AI reviewer, once called Diamond, is now Graphite's AI Reviews. Unlimited AI reviews start at the Team plan.
Pick it for stacking and AI review in one tool. Skip it if you only want a reviewer: its seat costs most in the table.
SourceryBest cheap seat on self-managed GitLab
PR summaries, diagrams, one-click fixes and custom rules; Team adds nightly security scans of 50 repos. Works on GitLab.com and self-managed GitLab on every plan. Self-hosting, GitHub Enterprise Server and your own LLM keys come with Enterprise. Not on either scorecard.
Pick it for a cheap seat on GitHub or GitLab. Skip it on Bitbucket or Azure DevOps.
BitoBest low seat price on Bitbucket
Codebase-aware reviews in Git, the IDE and the CLI. Professional ($20 annual) adds custom guidelines, learning from feedback and Jira, and can be self-hosted for $5 more per seat. Not on either scorecard.
Pick it for Bitbucket on a budget. Skip it if your PRs are large: the line cap adds up.
PR-AgentBest free and self-hosted
The open-source reviewer Qodo started, now community-maintained and separate from Qodo's product. Run it as a GitHub Action, CLI, container or webhook with your own keys for OpenAI, Anthropic, Gemini, DeepSeek and others.
Pick it if code can't leave your network. Skip it if you don't want to run and tune it yourself.
IonWarpBest for small GitHub teams wanting specialists
Our product. Code Review runs on every PR, and a planner adds specialist reviewers (security, cost, docs, logs and errors, AI architecture, SOC 2, UX, SEO and more) when a diff calls for them; findings arrive as one PR comment. The GitHub App reads code but never writes to it. Starter includes Code Review and Security Review; Pro adds DevOps, Docs, AI Architecture, Log & Errors and Cost; Max adds 9 more, including SOC 2, UX and SEO; repos are unlimited. Rules go in an ionwarp.json file or settings, and replying "@ionwarp learn: <rule>" teaches every reviewer. Startups that raised under $5M can get 50% off Pro or Max for 12 months. Downsides: GitHub only, no self-hosting, Qodo scores higher in IonWarp's own benchmark, and it isn't on Martian's tracker.
Pick it for a 3 to 10 person GitHub team that wants more than bug review at a flat price. Skip it on any other Git host.
How to choose an AI code reviewer
- Start with your Git host. It rules out tools faster than anything else.
- Count PRs, not just people. Seat pricing suits busy teams; per-review pricing suits teams that open few, large PRs.
- Weigh noise against coverage. High recall with low precision means many comments nobody acts on, and people stop reading.
- Check rules and memory. Can you commit review rules, and does it learn from "not a bug" replies?
- Run two at once for two weeks. Install two shortlisted tools on the same repo and count real bugs caught, false alarms and minutes to first comment.
AI reviewers vs linters and static analysis
Linters and static analysers run fixed rules: the same code gets the same finding every time. AI reviewers read a diff the way a colleague does and catch logic bugs no rule describes, but they can be wrong, noisy, and vary from run to run. Most teams keep both: rules as a required check, the AI reviewer as the first reader.
Questions people ask
What is the best AI code review tool?
There is no single winner. Greptile has the highest F1 on Martian's independent tracker (65.2%) and Qodo leads IonWarp's own benchmark (58.5%). Then your Git host and budget decide: CodeRabbit covers the most hosts, Copilot code review costs nothing extra if you already pay for Copilot, and IonWarp has the lowest flat price for a five-person GitHub team.
Is there a free AI code review tool?
PR-Agent is free and open source; you pay only for the model API. IonWarp's Starter plan is free for 3 seats, and Greptile's Starter is free for one developer with 50 credits a month. CodeRabbit and Sourcery review public repositories free, and Qodo and Greptile have free programmes for open-source projects. Copilot Free does not include code review.
Can ChatGPT or Claude review my code?
Yes, by pasting a diff into a chat or by connecting them to pull requests. Martian's tracker scores both as PR reviewers: Claude at 60.7% F1 and the ChatGPT Codex connector at 57.1%, close to the dedicated tools, which add summaries, rules files and spending controls.
Do AI code reviewers replace human review?
No. The best recall in IonWarp's benchmark was 62%, so more than a third of known issues went unflagged. Copilot's reviews don't count toward required approvals unless an admin turns that on. Use the bot as a first pass and keep a person on the approve button.
Which AI code review tools work with GitLab?
CodeRabbit, Qodo, Greptile, Cursor Bugbot, Sourcery, Bito and PR-Agent all review GitLab merge requests, and GitLab sells its own AI review through GitLab Credits. IonWarp, Graphite and Copilot code review do not support GitLab.
Do AI code review tools train on my code?
Qodo, Sourcery and Bito say on their pricing pages that they don't. For the others, read the data terms before you install, and check whether self-hosting or your own model keys come with the plan you can afford.
How are AI code review tools priced?
Per developer (CodeRabbit, Sourcery, Bito, Graphite), per review or credit (Greptile, Qodo, Cursor Bugbot), inside a bundle (Copilot), or per workspace with seats included (IonWarp). PR-Agent is free; you pay the model provider.
About this page
Published by Winding AI, Inc., the company that makes IonWarp. That's a conflict of interest, so: every price was read from the vendor's own pricing page on 7 November 2026 and links there; accuracy numbers come from two named sources, one independent (Martian) and one run by IonWarp, labelled as such; there are no star ratings, scores of our own or testimonials; and no vendor paid to be listed. Prices change often: if one here is out of date, email support@winding.ai and we'll fix it. IonWarp's own, longer comparison lives at ionwarp.com/for/ai-code-review-tools.