Decision table
| Need | Pick | Price or limit (as listed 17 October 2026) | Verdict |
|---|---|---|---|
| GitLab, Bitbucket or Azure DevOps support | CodeRabbit | $24 per developer per month billed annually, 5 PR reviews per hour | Buy this first |
| Reviews inside an existing Copilot plan | GitHub Copilot code review | Pro $10 per month with $15 of AI credits; a Lite review costs about $0.05 to $1 | Best value on GitHub |
| A free start for one developer | Greptile | Starter free with 50 credits per month; Pro $30 per seat | Best free entry |
| Reviews bundled with an AI editor | Cursor Bugbot | Bugbot included from the $30 per month Premium plan | Pick if Cursor is already standard |
| One team budget with no seat count | Qodo | $0.012 per credit, 2,500 credits is about 18 reviews | Good for uneven review volume |
| Stacked PRs plus unlimited AI review | Graphite | Team plan $40 per user per month billed annually | Pick for stacking teams on GitHub |
The 6 tools on the same fields
CodeRabbit
- Best for: teams on any of the four major Git hosts that want a reviewer with summaries, chat and one-click fixes.
- Main limitation: reviews are rate limited per developer per hour, and one bot account opening every PR concentrates the limit on that identity.
- Price or plan limits: Essentials $24, Team $48 and Advanced $72 per developer per month billed annually; Essentials covers 1 linked repository for cross-repo context.
- Platforms and data terms: GitHub, GitLab, Bitbucket and Azure DevOps; customer code is never used for training.
CodeRabbit Essentials costs $24 per developer per month billed annually with 5 PR reviews per hour, per the CodeRabbit plans page checked 17 October 2026.
GitHub Copilot code review
- Best for: GitHub organizations that already license Copilot and want reviews on every pull request.
- Main limitation: pull request reviews run on GitHub only, and the Free plan does not include code review.
- Price or plan limits: the Copilot plans page lists Pro at $10 per month with $15 of AI credits and Pro+ at $39 with $70 of credits; 1 AI credit equals $0.01.
- Platforms and data terms: GitHub only; GitHub states it does not use Copilot Business or Enterprise data to train its models.
A Lite Copilot code review typically uses $0.05 to $1 of AI credits and a Balanced review $0.25 to $5, per GitHub documentation checked 17 October 2026.
Greptile
- Best for: teams that want reviews grounded in an index of the whole repository.
- Main limitation: the Greptile security page says it may train models on de-identified customer data unless you opt out in account settings.
- Price or plan limits: the Greptile pricing page lists Starter free for 1 active developer with 50 credits per month, and Pro at $30 per seat with 50 credits per seat and extra credits at $1 each.
- Platforms and data terms: GitHub and GitLab, with GitLab Self-Managed, Bitbucket Data Center and self-hosting on Enterprise; code is deleted when access is revoked.
Greptile Pro costs $30 per seat per month with 50 review credits per seat, per the Greptile pricing page checked 17 October 2026.
Cursor Bugbot
- Best for: teams already standardized on Cursor that want the same vendor reviewing their PRs.
- Main limitation: Bugbot is bundled into Cursor subscriptions with usage-based billing, so the review budget competes with editor usage.
- Price or plan limits: the Cursor pricing page includes AI code reviews via Bugbot from the $30 per month Premium plan, and Teams starts at $30 per user per month.
- Platforms and data terms: the Bugbot docs list GitHub, GitLab, Bitbucket and Azure DevOps; with privacy mode on, Cursor says code is not used for training.
Cursor Bugbot is included from the $30 per month Premium plan and supports four Git hosts, per Cursor pricing and docs checked 17 October 2026.
Qodo
- Best for: teams that want one shared credit pool instead of per-seat review caps.
- Main limitation: the Qodo pricing page offers a 14-day trial but no permanent free tier; credits expire each month.
- Price or plan limits: $0.012 per credit pooled across the team; 2,500 credits is about 18 reviews and 20,000 credits about 144 reviews per month.
- Platforms and data terms: GitHub, GitLab, Bitbucket and Azure DevOps, with Gerrit on Enterprise; Qodo states it does not train models on your code.
Qodo charges $0.012 per review credit, with 20,000 credits covering about 144 reviews per month, per the Qodo pricing page checked 17 October 2026.
Graphite
- Best for: GitHub teams that already use stacked pull requests and a merge queue.
- Main limitation: GitHub only, and the Hobby and Starter plans include only limited AI reviews.
- Price or plan limits: the Graphite pricing page lists Starter at $20 and Team at $40 per user per month billed annually, with unlimited AI reviews on Team.
- Platforms and data terms: GitHub and GitHub Enterprise Server; the Graphite AI privacy docs say AI features are opt-in and neither Graphite nor its subprocessors train on your data.
Graphite Team costs $40 per user per month billed annually and includes unlimited AI reviews, per the Graphite pricing page checked 17 October 2026.
Why AI review matters more as AI writes more code
The Veracode 2025 GenAI Code Security Report tested code from more than 100 large language models across Java, JavaScript, Python and C#, and found that AI-generated code introduced risky security flaws in 45% of tests. Treat the bot as a first pass, and keep a human approval and a security scanner on anything touching authentication, payments or data access.
Data terms to check before you connect a repo
A review bot reads your private source code. Check three things on each vendor's page: training use, how long code and embeddings are stored, and which AI subprocessors receive it. On 17 October 2026, CodeRabbit, Graphite and Qodo state they do not train on customer code, GitHub excludes Business and Enterprise data from training, Cursor ties its guarantee to privacy mode, and Greptile requires an opt-out for de-identified training. Our AI tool privacy checklist covers the questions to send your security team.
How to choose
- List your Git hosts. If any team uses GitLab, Bitbucket or Azure DevOps, drop Copilot code review and Graphite from the shortlist.
- Pick two tools and install both on the same three active repositories for the 14-day trial most vendors offer.
- Count useful comments versus noise on 20 real pull requests.
- Price the winner at your real volume: seats times plan price, or credits times review count for Qodo, Greptile and Copilot.
- Confirm the training and retention setting is configured before you widen access to every repository.
If you also need an assistant that writes code, see our best AI coding tools ranking, the GitHub Copilot review and the Cursor review, or compare them directly in Cursor vs GitHub Copilot.
How we rank
We compared each tool on supported Git platforms, per-seat and per-review pricing, included review limits, free and open source options, and data retention and training terms, using each vendor's pricing, documentation and trust pages as listed on 17 October 2026. Platform coverage and data terms weigh most, then price. Read the full method on our how we rank page, and see more picks for engineering teams on the developer use case hub.
Frequently asked questions
What is the best AI code review tool in 2026? CodeRabbit is our top pick for most teams. It supports GitHub, GitLab, Bitbucket and Azure DevOps, starts at $24 per developer per month billed annually, and states it never trains on customer code.
Is there a free AI code review tool? Yes, Greptile Starter is free for 1 active developer with 50 credits per month. CodeRabbit and Greptile also offer free plans for qualifying open source projects, and Qodo runs a free open source program.
Does GitHub Copilot review pull requests on the Free plan? No, the Copilot Free plan does not include code review. Pro, Pro+, Max, Business and Enterprise include it, and each review draws AI credits from the plan allowance.
Which AI code review tools work with GitLab and Bitbucket? CodeRabbit, Cursor Bugbot and Qodo support GitLab, Bitbucket and Azure DevOps. Greptile supports GitHub and GitLab and adds Bitbucket Data Center on Enterprise, while Copilot code review and Graphite are GitHub only.
Do AI code review tools train on my code? It depends on the vendor. CodeRabbit, Graphite and Qodo say they do not, GitHub excludes Business and Enterprise data, Cursor relies on privacy mode, and Greptile asks you to opt out of training on de-identified data.
How much does a Copilot code review cost? A Lite review typically uses $0.05 to $1 of AI credits and a Balanced review $0.25 to $5, according to GitHub's code review documentation. Reviews also consume GitHub Actions minutes unless you use self-hosted runners.
Can AI code review replace human reviewers? No, it should be a first pass, not the final approval. Veracode found security flaws in 45% of AI-generated code tests, so risky changes still need a human reviewer and a security scanner.