AI Code Review Tools Comparison 2026: CodeRabbit, Graphite, Greptile and 7 More (Pricing & Free Plans)

Choosing an AI code review tool is harder than it looks. Pricing models differ: some charge per seat, some per credit, and some per review. Free plans range from full reviews on public repositories to summaries only. Support for Japanese, Git platforms, and self-hosting also varies from tool to tool.

This article compares 10 tools: CodeRabbit, Graphite, Greptile, Qodo, Sourcery, Bito AI Code Review Agent, Codacy, GitHub Copilot code review, Cursor Bugbot, and CodeAnt AI. For each one we cover pricing, free plans, Japanese support, supported platforms, strengths, and weaknesses. We compared them using each vendor's official website, checked in November 2026.

After the tool-by-tool sections, you will find picks by goal and buying tips for teams evaluating these tools. A short FAQ and summary close the article.

What Are AI Code Review Tools? What They Do and What to Know Before Choosing

AI code review tools read the changes in a pull request (PR) and leave comments, summaries, and suggested fixes. They add a first pass of review before a human reviewer looks at the code. Some tools also run in the IDE or CLI, so you can check local changes before opening a PR.

Based on the features of the tools in this article, typical uses include:

• Automatic PR review: line-by-line comments on bugs, security issues, and code quality, as in CodeRabbit and CodeAnt AI.
• PR summaries: a description of the change and a walkthrough or table of changes, as in Sourcery and Bito AI Code Review Agent.
• One-click or agent-based fixes: suggested fixes you can commit, or findings handed to a coding agent, as in Greptile and Cursor Bugbot.
• Team rules: custom rules in natural language or in a file such as BUGBOT.md, as in Graphite and Qodo.
• Security checks: scanning for secrets and dependency vulnerabilities, as in Codacy and Sourcery.
• Review before a PR: IDE extensions or a CLI for local changes, as in GitHub Copilot code review.

Before choosing, check what the free plan or trial actually covers. CodeRabbit's Free plan gives PR summaries only, while Qodo offers a 14-day trial and no permanent free plan. Sourcery's free plan covers public repositories only. Also check how the cost is calculated. Seat prices, credits, and per-review fees lead to very different bills as your PR volume grows.

Language and platform support matter just as much. Japanese support ranges from a full Japanese site to a setting you must configure yourself, and some vendors do not state it at all. Git platform coverage also differs. Some tools support only GitHub, while others add GitLab, Bitbucket, Azure DevOps, or self-hosted editions. Small teams may care most about price per seat. Larger organizations often need SSO, audit logs, or on-premises deployment, which are usually Enterprise features.

Pricing and features change often. Check the official website for the latest pricing and features before you buy.

Comparison Table of Top 10 Tools (Pricing, Japanese Support, Platforms)

Tool	Main plans	Japanese support	Platforms
CodeRabbit	Free free / Essentials $24/user/month / Team $48/user/month / Advanced $72/user/month	Supported	Web, GitHub, GitLab, Bitbucket and more
Graphite	30-day free trial of the Team plan / Starter $20/user/month / Team $40/user/month	Not stated	Web, GitHub, VS Code, CLI
Greptile	Pro $1/credit	Partial	Web, GitHub, GitLab, Bitbucket and more
Qodo	14-day free trial / Contact sales	Not stated	Web, GitHub, GitLab, Bitbucket and more
Sourcery	Pro $12/developer/month / Team $24/developer/month	Not confirmed	Web, GitHub, GitLab, VS Code and more
Bito AI Code Review Agent	Team $12/seat/month / Professional $20/seat/month	Partial	Web, GitHub, GitLab, Bitbucket and more
Codacy	14-day free trial / Team from $18/developer/month	Not confirmed	Web, GitHub, GitLab, Bitbucket and more
GitHub Copilot code review	Copilot Pro $10/month / Copilot Pro+ $39/month / Copilot Max $100/month	Supported	Web, GitHub, Azure DevOps, VS Code and more
Cursor Bugbot	Free $0 and Plus $8/month are not eligible for Bugbot / Individual: Premium $30/month, Super $100/month	Partial	Web, GitHub, GitLab, Bitbucket and more
CodeAnt AI	Free Trial 14 days / Premium Plan $24/user/month	Not stated	Web, GitHub, GitLab, Bitbucket and more

AIpedia has not rated these tools, because they do not have their own pages on AIpedia yet. Pricing and plans change; we checked each vendor's official website in November 2026. Check the latest information on the official website before you sign up.

Features, Pricing, and Best For: 10 Tools

1. CodeRabbit

CodeRabbit automatically reviews pull requests on GitHub, GitLab, Bitbucket, and Azure DevOps. On each PR it posts a change summary, a walkthrough, and line-by-line comments. An IDE extension for VS Code-based editors and a CLI let you review local changes before you open a PR.

• Strengths: Japanese support is relatively well developed. The official website and pricing page have a Japanese version, and setting the language option to ja-JP outputs reviews in Japanese.
• Strengths: Platform coverage is wide, with connection guides for GitHub Enterprise Server and self-managed GitLab. Even the Free plan includes IDE extension and CLI reviews, and public repositories can be reviewed for free.
• Strengths: Only developers who create PRs are billed, and seats can be reassigned between developers, according to the pricing page FAQ. You can also expand step by step, from review to PR prioritization, test generation, and continuous security monitoring.
• Things to note: PR review on the Free plan is summary only. Full review on PRs requires Essentials ($24/user/month, billed annually) or higher.
• Things to note: Each plan limits PR reviews per developer per hour: 5 on Essentials, 8 on Team, and 10 on Advanced. To continue past the limit, you must enable usage-based review at $0.25/file. The documentation is in English only.

Other features include Learnings, which apply context from past PRs and guidelines, and Pre-merge checks as a quality gate. It also pulls results from more than 50 linters and security tools, such as ESLint and Ruff, into reviews. Triage and test generation require Team or above. Continuous security review requires Advanced or above. Self-hosting and SSO are Enterprise only.

Pricing: Free is free (PRs get summaries only; code review is available in the IDE extension and CLI). Open source is free for public repositories. Essentials (formerly Pro) is $24/user/month (billed annually; $30 billed monthly). Team (formerly Pro+) is $48/user/month (billed annually; $60 billed monthly). Advanced is $72/user/month (billed annually; $90 billed monthly). Enterprise is contact sales. New organizations get a 14-day Advanced trial. Usage-based reviews after the limit is exceeded cost $0.25/file reviewed, and CodeRabbit Agent costs $0.40/minute of agent runtime.

Best for: Teams that want reviews in Japanese and support for several Git platforms, and that can accept paying for full PR review from Essentials upward. Teams with many PRs should check the hourly limits first.

2. Graphite

Graphite is a code review platform used in sync with GitHub. It started with stacked PRs, which split a large change into a chain of small PRs, and now combines a PR page, PR inbox, merge queue, AI review, and AI chat (Graphite Chat). AI review is done by Graphite Agent, which flags logic errors, edge cases, and security issues.

• Strengths: It handles the whole review process in one tool, including stacked PRs with the CLI and VS Code extension, the PR page, the merge queue, and the PR inbox.
• Strengths: The Team plan ($40/user/month, billed annually) makes AI reviews and Graphite Chat unlimited. You can try Team for 30 days without a credit card.
• Strengths: Natural-language custom rules and templates such as OWASP and per-language style guides make it easier to reflect your team's standards. It also integrates with Cursor Cloud Agents, so you can hand off fixes and PR creation from the PR page.
• Things to note: The only officially documented integration is GitHub, including GitHub Enterprise Cloud. GitHub Enterprise Server requires the Enterprise plan, and support for GitLab and others is not stated.
• Things to note: We could not confirm Japanese support. There is no Japanese version of the site and no comment language setting in the documentation. On Hobby and Starter, AI reviews and Graphite Chat have usage limits that are not published.

According to Cursor's official blog, Graphite entered into a definitive agreement to be acquired by Cursor on December 19, 2025. It is run by the same company as Cursor's Bugbot. Using the Agents feature requires a paid Cursor plan, separate from Graphite. The AI features use Anthropic and OpenAI as subprocessors, and the official documentation states that data is not used for training.

Pricing: Hobby is free (personal account repositories only; AI reviews and Graphite Chat have usage limits). Starter is $20/user/month (billed annually; $25 billed monthly). Team is $40/user/month (billed annually; $50 billed monthly) and includes unlimited AI reviews and Graphite Chat, AI review customization, automations, and the merge queue. Enterprise is contact sales. Team has a 30-day free trial with no credit card required. According to the pricing page FAQ, only users who actually received an AI review that month are billed.

Best for: GitHub-based teams that want stacked PRs, a merge queue, and AI review in one place, and that are comfortable working in English.

3. Greptile

Greptile is an AI code review tool that builds a graph of the files, functions, and dependencies in your codebase. Multiple agents then review pull requests in parallel and flag impacts that extend beyond the diff. Pricing is credit-based rather than per seat.

• Strengths: There are no seat fees. You pay in credits only for the reviews you run, so costs can follow usage even on teams with many developers.
• Strengths: Review tiers let you control depth. Base uses 1 credit, Plus uses 3, and Apex uses 10. You can set a tier per organization, repository, directory, or rule, so deeper reviews go only to important PRs.
• Strengths: Git coverage is wide. GitHub, GitLab.com, and Bitbucket Cloud are supported on all plans. Enterprise adds GitHub Enterprise Server, GitLab Self-Managed, Bitbucket Data Center, and Gitea, plus self-hosting.
• Things to note: Costs are hard to predict in months with many PRs or heavy Apex use, and new reviews stop when credits run out. The free Starter plan is limited to 1 active developer and 50 credits per month, and it does not include CLI reviews.
• Things to note: Japanese support is partial. The official documentation shows how to get Japanese responses through Custom Instructions and greptile.json, but the site and UI are English only. TREX and auto-approval of low-risk PRs are beta features.

Pricing: Starter free (1 active developer, 50 credits per month, unlimited repositories. CLI reviews not included) / Pro $1/credit (no seat fees, unlimited developers and agents. Prepaid credits shared across the organization. 14-day free trial) / Enterprise contact sales (self-hosting, SSO/SAML, role-based access control, GitHub Enterprise Server, GitLab Self-Managed, Bitbucket Data Center, Gitea, etc.). A TREX run uses 3 credits, added on top of the review. Non-commercial open source projects can apply for free use. Check the official website for the latest pricing and features.

Best for: Teams that want review with full-codebase context and prefer to pay by usage instead of by seat. It suits teams that can estimate their monthly PR volume in advance and are comfortable working in an English interface.

4. Qodo

Qodo, formerly Qodo Merge, is an AI code review platform in which multiple specialized agents review pull requests. They use the codebase, PR history, ticket requirements, and organizational rules as context. It supports GitHub, GitLab, Bitbucket, Azure DevOps, and Gerrit.

• Strengths: It supports Gerrit in addition to the other four platforms. Deployment can be multi-tenant, single-tenant, on-premises, or air-gapped, which suits stricter environments.
• Strengths: It uses workspace-level credits instead of seat billing. According to the pricing page FAQ, there is no cap on the number of users, repositories, or reviews.
• Strengths: Features such as automatic rule extraction and impact analysis across multiple repositories help align review standards across an organization. The 14-day free trial requires no credit card and has unlimited usage.
• Things to note: There is no permanent free plan, so reviews stop after the trial until you choose a paid plan. Credit use varies with PR size and complexity, and the $30 pack is only about 14 reviews per month.
• Things to note: The IDE plugins will be discontinued on October 30, 2026, and local review moves to the Agentic Toolbox. We could not confirm Japanese support: there is no Japanese site and no review output language setting in the current documentation.

Other features include Software Map, which maps dependencies between repositories, and the beta Cross Repo Review. Chat on PRs lets you call @qodo to explain or dismiss findings, and it can generate fix prompts for coding agents. Enterprise can use BYOK and has SOC 2 certification and RBAC.

Pricing: There is a 14-day free trial (no credit card required, unlimited usage). Pro Team uses a monthly credit-pack model at $0.015/credit, shared across the workspace: $30 (2,000 credits, roughly 14 reviews per month), $60 (4,000 credits, about 29 reviews), and $240 (16,000 credits, about 114 reviews). It is billed monthly only, and unused credits do not roll over. Overage is charged at the same unit price up to a cap you set. Enterprise is contact sales, for 30 or more users. Open source is free by applying to the Qodo for Open Source program.

Best for: Organizations that need Gerrit, on-premises, or air-gapped deployment and want shared review rules across repositories. Check the Japanese output during the trial if that matters to you.

5. Sourcery

Sourcery reviews GitHub and GitLab pull requests with AI. It posts a "Summary by Sourcery," a Reviewer's Guide that summarizes the changes per file, inline comments, and suggested fixes. Depending on settings, it can also approve low-risk PRs that have no blocking findings.

• Strengths: Review of public repositories is free. Even the Open Source plan includes one-click fixes, auto-approval, and custom rules.
• Strengths: Pro starts at $12/developer/month (billed annually), so the per-seat price of paid plans is relatively low. Billing is only for developers who are assigned a seat.
• Strengths: GitLab.com and self-hosted GitLab are supported on all plans. IDE extensions cover VS Code, Cursor, Windsurf, and JetBrains, so you can review before opening a PR. The Team plan adds codebase-wide security scanning, a dashboard, and a REST API.
• Things to note: The official documentation covers only GitHub and GitLab, including GitHub Enterprise Server and self-hosted. Bitbucket and Azure DevOps are not mentioned.
• Things to note: Review volume is measured in characters of the diff. Reviews are skipped when the per-PR limit or the 7-day budget (1.5 million characters per seat on Pro) is exceeded. Japanese output could not be confirmed, because the available languages are not listed.

Review profiles (Quiet, Balanced, or Verbose) adjust how many inline comments you get. The Team plan's security scan checks secrets, SAST, IaC, dependencies, and licenses every night on up to 50 repositories. Sourcery uses OpenAI and Anthropic models, and code is not used for training. GitHub Enterprise Server, self-hosting, and SSO are available only on Enterprise.

Pricing: Open Source is free for public repositories. Pro is $12/developer/month (billed annually; $15 if billed monthly) and covers private repositories with higher review limits. Team is $24/developer/month (billed annually; $30 if billed monthly) and adds nightly security scans of 50 repositories, an issue dashboard, on-demand scans, and team analytics. Enterprise is contact sales. Paid plans can try Team free for 14 days across the whole organization, with no credit card required.

Best for: Small teams on GitHub or GitLab that want a low per-seat price and a free option for public repositories. Check the language settings during the trial if you need Japanese.

6. Bito AI Code Review Agent

Bito AI Code Review Agent automatically reviews pull requests on GitHub, GitLab, and Bitbucket. It comments line by line on bugs, security, and performance issues, and adds a PR summary and a table of changes (Changelist). The same reviews can run from IDE extensions for VS Code, JetBrains, Cursor, and Windsurf, and from the CLI.

• Strengths: The official documentation lists Japanese among the 22 languages you can choose for review comments in the agent settings. Chat on the PR also supports more than 20 languages.
• Strengths: It supports cloud and self-hosted versions of GitHub, GitLab, and Bitbucket. The Team plan starts at $12/seat/month billed annually.
• Strengths: Results from static analysis, linters, and secret detection tools can be reviewed together with the AI review. According to the pricing page, code is not stored or used to train models, and the service has SOC 2 Type II certification.
• Things to note: Beyond 5,000 lines per seat per month, an additional $5 per 1,000 lines is charged. The pricing page also says "Fair usage limits apply."
• Things to note: Azure DevOps is "Coming soon" and not supported as of November 7, 2026. The website and documentation are in English only. Bito's site focus has shifted to Governor and AI Architect, and the latest item in the review agent's changelog is dated February 11, 2026.

Custom review guidelines and Jira integration are Professional and above. Confluence integration is described inconsistently: Professional on the pricing page, but Enterprise only in the documentation. Reviews can run automatically on new PRs or manually with a "/review" comment. In Test Mode, you can analyze 10 PRs for free with a personal access token.

Pricing: Team is $12/seat/month (billed annually; $15/seat/month if billed monthly). Professional is $20/seat/month (billed annually; $25/seat/month if billed monthly) with a 14-day free trial and no credit card required. Enterprise is contact sales. Team and Professional include up to 5,000 lines per seat per month, with overage at $5 per 1,000 lines. Self-hosting is a $5/seat/month add-on on Professional.

Best for: Small teams that want review comments written in Japanese at a low per-seat price, and that can work with English-only documentation.

7. Codacy

Codacy is a code quality and security platform. It combines static analysis for 49 languages and frameworks, security scanning, and test coverage management. AI review of PRs is handled by the AI Reviewer, which combines rule-based static analysis with AI contextual understanding.

• Strengths: Static analysis, security scanning, coverage management, and AI review live in one platform. Rule-based analysis results are used as context for the AI review.
• Strengths: The Team plan is seat-based at from $18/developer/month (billed annually), and the pricing page says "No usage limits," so costs are easy to estimate. The free Developer plan offers local analysis in IDE extensions and the CLI, and open source public repositories are free.
• Strengths: Analysis starts through the Git integration webhook without embedding it in a CI/CD pipeline. Secrets are automatically masked before being sent to the AI, and the documentation states that code is not used to train models.
• Things to note: According to the documentation, the AI Reviewer is currently GitHub only. GitLab and Bitbucket get only per-finding AI-enhanced comments.
• Things to note: Azure Repos and on-premises Git are not supported, and Codacy Self-hosted is not offered to new customers. Team is limited to 30 people and 100 private repositories. There is no Japanese site, and a Japanese output setting could not be confirmed.

The AI Reviewer uses the PR description, linked Jira tickets, source code, and analysis results as context. It points out requirement mismatches, missing tests, complex or duplicated code, and security concerns. You can tune it with custom instructions in review.md. It runs automatically or manually with "Run Reviewer."

Pricing: Developer is free ($0/developer/month) for local analysis in IDE extensions, the CLI, and coding agents. Team is from $18/developer/month (billed annually; from $21 if billed monthly). It covers up to 30 people and 100 private repositories and includes the AI Reviewer and merge gates. Business is contact sales. Public repositories (open source) are free. The 14-day free trial requires no credit card. A seat is required for each developer who commits to a private repository added to Codacy.

Best for: GitHub teams that want code quality, security scanning, and AI review from one vendor with seat-based pricing.

8. GitHub Copilot code review

GitHub Copilot code review is GitHub's own AI review feature. When you assign Copilot as a reviewer on a pull request, it reads the whole change and points out bugs, security issues, and style inconsistencies in line comments. It also offers suggested fixes that can be applied in a few clicks.

• Strengths: As a standard GitHub feature, you can request a review just by adding Copilot to a PR's Reviewers. It is included in paid plans from Copilot Pro ($10/month) and up, under the same contract as other Copilot features.
• Strengths: You can adjust review depth and credit use in three levels: Lite, Balanced, and Max. The official documentation has a Japanese version, and custom instructions and AGENTS.md let you specify review focus and language.
• Strengths: On Business and Enterprise, reviews can also be provided to members who do not have a Copilot license. Beyond GitHub.com, it supports diff review in VS Code, Visual Studio, Xcode, and JetBrains IDEs.
• Things to note: Each review consumes AI credits. The official estimates are about $0.25 for Lite, about $1.50 for Balanced, and about $10 for Max. Usage beyond the included credits is usage-based, and GitHub Actions minutes are charged separately.
• Things to note: GitLab and Bitbucket are not covered, and Azure DevOps is in public preview. The review model is selected automatically and cannot be switched. Dependency files such as package.json, logs, and SVGs are not reviewed.

Customization includes .github/copilot-instructions.md, agent skills, MCP servers, and Copilot Memory. With the right settings, Copilot's approval can count as a required approval. Handing findings to the Copilot cloud agent to create a fix PR is in public preview. The documentation gives a Spanish example for the review language, not a Japanese one.

Pricing: Copilot Free is $0 and does not include code review. Copilot Pro is $10/month (1,500 AI credits per month). Pro+ is $39/month (7,000 credits). Max is $100/month (20,000 credits). Business is $19/user/month (1,900 credits per user, pooled across the organization). Enterprise is $39/user/month (3,900 credits likewise). One credit equals $0.01. Annual Pro and Pro+ plans still on the old premium request billing are charged 13 premium requests per review from June 1, 2026.

Best for: Teams already working on GitHub that want review inside the PR flow and can manage usage-based credits. Japanese documentation helps with onboarding.

9. Cursor Bugbot

Cursor Bugbot is the AI code review from Cursor, the AI code editor. Each time a PR is updated, it analyzes the diff and comments on logic bugs, security issues, and code quality, with explanations and suggested fixes. It supports GitHub, GitLab, Bitbucket, and Azure DevOps Services.

• Strengths: There is no standalone Bugbot seat fee. Billing is usage-based, and according to the official FAQ the average is $1.00 to $1.50 per review.
• Strengths: Coverage is wide, including GitHub Enterprise Server, GitLab Self-Hosted, and Bitbucket Data Center. You can tune review focus with BUGBOT.md, team rules, and rules learned from PR activity.
• Strengths: Autofix hands the fix for bugs it finds to a Cloud Agent. You can also review in Cursor or with /review-bugbot in the CLI before opening a PR, without duplicating the review on the PR.
• Things to note: For individuals, Bugbot is available only on Premium ($30/month) and above. Free and Plus ($8/month) are not eligible.
• Things to note: Per-review pricing makes monthly costs hard to estimate, and the High Effort Level raises the per-review cost. Autofix's "Create New Branch" mode works only for GitHub and Origin, and Autofix cannot be used with Azure DevOps.

Japanese versions exist for the Bugbot product page and pricing page, but the documentation is in English. We could not confirm a setting for Japanese review comments. Cursor was acquired by SpaceX on August 14, 2026, and the pricing table is now structured as plans bundled with X and Grok features. Purchase is only through X Subscription Corp.

Pricing: There is no standalone Bugbot subscription; it is usage-based. For individuals, Premium $30/month, Super $100/month, and Ultra $200/month can use Bugbot, which draws from the plan's usage allowance. Free $0 and Plus $8/month are not eligible. Teams is $30+/user/month, billed from the team's prepaid credits. Enterprise is contact sales. Existing contracts on the legacy $40/user/month seat-based billing move to usage-based billing at their next renewal on or after June 8, 2026.

Best for: Teams that already use Cursor, work across several Git platforms, and prefer paying per review over a fixed seat fee.

10. CodeAnt AI

CodeAnt AI is an AI code review tool that reviews pull requests line by line. Each comment includes a severity, a suggested fix, and steps to reproduce the issue. It also offers code security features such as SAST and secrets detection as separately priced products on the same platform.

• Strengths: Each finding carries a severity of Critical, High, Medium, or Low, plus steps to reproduce. This makes it easier to check whether an issue is real. Critical and High findings also include an analysis of the impact if left unaddressed.
• Strengths: Coverage is wide. It supports cloud and self-hosted versions of GitHub, GitLab, Bitbucket, and Azure DevOps. IDE extensions are available for VS Code, Cursor, Windsurf, JetBrains, and Visual Studio, along with a CLI.
• Strengths: Suggested fixes can be committed directly on the PR, or you can pass a "Prompt for AI Agent" to a coding agent such as Cursor. The 14-day free trial includes 100 PR reviews, and open source gets a 100% discount.
• Things to note: AI Code Review, Code Security, Code Quality, and other products are priced separately, so costs add up if you use several. The static analysis and SAST in the Premium Plan are labeled "Only on Pull Requests" on the pricing page.
• Things to note: The official website and documentation are English only. A language setting for review comments could not be confirmed, so check the output during the trial if you need Japanese.

Pricing: Free Trial 14 days (includes 100 PR reviews, all Premium features, unlimited seats during the trial, no credit card required) / Premium Plan $24/user/month (billed annually; billed monthly it is $30/user/month; unlimited PR reviews) / Enterprise Plan contact sales (on-premises/VPC deployment, SSO and audit logs, custom MSA, and more). According to the pricing page, open source gets a 100% discount and a startup discount is available. Code Security, Code Quality, and Dev Metrics are priced separately. Check the official website for the latest pricing and features.

Best for: Teams that want line-by-line review with severity ratings and reproduction steps across several Git platforms, including Azure DevOps and self-hosted setups. It fits teams that can work in English and can budget for any additional security products separately.

Recommendations by Goal

Goal	Recommended	Why
Start with a free plan	CodeRabbit, Codacy	CodeRabbit's Free plan includes IDE extension and CLI reviews, and Codacy's Developer plan is free for local analysis.
Try before paying	Qodo, CodeAnt AI	Both offer a 14-day free trial with no credit card required.
Review comments in Japanese	CodeRabbit, Bito AI Code Review Agent	CodeRabbit outputs Japanese with ja-JP, and Bito lists Japanese among its 22 review languages.
Low per-seat price for a small team	Sourcery, Bito AI Code Review Agent	Sourcery Pro and Bito Team both start at $12 per seat per month when billed annually.
Pay by usage, not seats	Greptile, Cursor Bugbot	Greptile charges $1/credit with no seat fees, and Bugbot averages $1.00 to $1.50 per review.
Enterprise scale and self-hosting	Qodo, Greptile	Both offer on-premises or air-gapped options, and Qodo adds Gerrit support.
Azure DevOps and many Git platforms	CodeAnt AI, Cursor Bugbot	Both list GitHub, GitLab, Bitbucket, and Azure DevOps, including self-hosted editions.
Stacked PRs on GitHub	Graphite	It combines stacked PRs, a merge queue, and AI review in one GitHub-based tool.

These picks reflect only the facts in each vendor's official information. Match them against your own Git platform, team size, and budget, and confirm the details during a trial.

How to Choose Without Regrets

Compare the pricing model, not just the price

These tools charge in different ways. CodeRabbit, Sourcery, and Bito charge per seat, Greptile and Qodo use credits, and Cursor Bugbot charges per review. GitHub Copilot code review combines a plan price with AI credits per review.

Seat prices are easy to forecast, while credit and per-review models follow your PR volume. Estimate a busy month before you decide.

Check what the free plan really covers

Free plans differ a lot. CodeRabbit's Free plan gives PR summaries only, and Sourcery's Open Source plan covers public repositories. Qodo has no permanent free plan, only a 14-day trial.

If you need full review on private repositories, compare the first paid tier rather than the free one.

Confirm Japanese support in practice

Japanese support varies from a full Japanese site to a setting you configure yourself. CodeRabbit and Bito have documented language settings that include Japanese. Greptile and GitHub Copilot code review rely on custom instructions. Graphite, Qodo, Codacy, and CodeAnt AI do not state Japanese support.

Whatever the documentation says, run a trial and read the actual comments your team would receive.

Match the tool to your Git platform

Platform coverage can rule out a tool quickly. Graphite documents only GitHub, and Sourcery covers GitHub and GitLab. Codacy's AI Reviewer is currently GitHub only, while CodeAnt AI and Cursor Bugbot list Azure DevOps.

Also check self-hosted editions such as GitHub Enterprise Server if your company runs them.

Consider team size and enterprise needs

Small teams often care most about the per-seat price and a simple setup. Larger organizations tend to need SSO, audit logs, and on-premises deployment, which are usually Enterprise features. For example, CodeRabbit reserves self-hosting and SSO for Enterprise, and Qodo supports air-gapped environments. Confirm the final decision with a qualified professional if security or compliance requirements apply.

FAQ

Q. Which AI code review tools have a free plan?

A. CodeRabbit has a Free plan, but PRs get summaries only, and code review is limited to the IDE extension and CLI. Sourcery's Open Source plan is free for public repositories. Codacy has a free Developer plan for local analysis, and Graphite's Hobby plan is free for personal repositories. Greptile's Starter is free with 1 active developer and 50 credits per month.

Q. Which tools offer a free trial?

A. Qodo has a 14-day free trial with no credit card and no permanent free plan. CodeAnt AI has a 14-day trial that includes 100 PR reviews. Greptile Pro, Bito's Professional plan, and Codacy's paid plan also offer 14-day trials. Graphite's Team plan has a 30-day trial with no credit card.

Q. Which tools can write review comments in Japanese?

A. CodeRabbit outputs Japanese when the language option is set to ja-JP. Bito lists Japanese among 22 review languages. Greptile and GitHub Copilot code review let you specify the language through custom instructions, though Copilot's documentation gives no Japanese example. For the others, we could not confirm Japanese output, so test it in a trial.

Q. How much do the seat-based plans cost?

A. CodeRabbit Essentials is $24/user/month, billed annually. Sourcery Pro is $12/developer/month and Team is $24/developer/month, both billed annually. Bito Team is $12/seat/month and Professional is $20/seat/month, billed annually. Codacy Team is from $18/developer/month, and CodeAnt AI Premium is $24/user/month, both billed annually.

Q. Which tools support Azure DevOps?

A. CodeRabbit, Qodo, Cursor Bugbot, and CodeAnt AI list Azure DevOps. GitHub Copilot code review supports it in public preview. Bito marks Azure DevOps as "Coming soon," and Codacy does not support Azure Repos. Check the official website for the latest pricing and features before you decide.

Summary

The 10 tools differ most in pricing model, free plan scope, Japanese support, and platform coverage. CodeRabbit, Sourcery, Bito, Codacy, and CodeAnt AI use seat-based prices. Greptile, Qodo, and Cursor Bugbot follow usage, and GitHub Copilot code review combines a plan price with AI credits.

Japanese support is documented most clearly for CodeRabbit and Bito, while several tools do not state it. Platform coverage and self-hosting also vary. Test the tools on your own repositories before you commit.

• Want to start free and review in Japanese → CodeRabbit (Free plan and a Japanese language option)
• Want a low per-seat price for a small team → Sourcery (Pro at $12/developer/month, billed annually)
• Want review inside GitHub with no extra tool → GitHub Copilot code review (assign Copilot as a PR reviewer)

View all AI code assistance tools (18 items)