Written by
Joel Witts
Technical Review by
Craig MacAlpine
In many businesses AI now writes a large share of the code entering your repositories. This puts more pressure on the humans who have to review AI output for vulnerabilities and bugs.
AI code review tools are built to address this problem, scanning AI generated code for issues and security flaws. The tools on this list are designed to read pull requests, comment on them the way a senior engineer would, and in most cases propose a fix you can apply in one click.
It is worth noting here that AI code review works very similarly to conventional Static Code Analysis (SCA) tools. The solutions don’t care whether a human or a model wrote the code, although the tools on this list do deploy into AI-workflows directly for more convenient review workflows.
We looked at multiple solutions with dedicated AI code review modules, so you can find the right option for your business.
AI code review is a tool that reads your pull requests and comments on them automatically. It scans code and detects bugs, edge cases, security problems, and violations of your team's standards, then usually offers a fix you can accept with a click.
These tools do not replace human approval. They clear the mechanical layer, so your engineers spend review time on design and intent rather than on typos, null checks, and missing tests.
There are different approaches to AI code review depending on how much you want to automate the process and how much you want to keep a human in the loop. Diff-only review reads just the changed lines, which is fast and cheap but can miss the wider context of changes. Full-codebase review indexes the whole repository first, then assesses how a change interacts with everything around it. Vendors like Greptile and Aikido both run parallel agents across a graph index of the repository, which is where the more capable end of the category is heading.
Sonar, Aikido, Codacy, CodeRabbit, Qodo, Semgrep, and Snyk can all gate merges on a policy you define. GitHub's documentation states that Copilot always leaves a comment review rather than an approval or a request for changes, so its reviews never count toward required approvals and never block merging. Merge gating on GitHub comes from a separate product, GitHub Code Quality. If you assume the reviewer enforces your standards, check that assumption first.
Every tool on this list offers a way to teach it your standards. There are a few ways of delivering this, such as files like .github/copilot-instructions.md and AGENTS.md, rules written in plain language, or learning from your team's own past review comments.
Here is how the leading AI code review tools compare on merge gating, review scope, deployment, and cost of entry.
| Product | Best For | Blocks Merges | Reviews Beyond Security | Self-Hosted | Works Without Configuration | Free Tier |
|---|---|---|---|---|---|---|
|
SonarQube
|
Quality gates on AI code
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
|
Aikido Security
|
Security and quality in one
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Codacy
|
Governing AI code at scale
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
CodeRabbit
|
Widest source control coverage
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
|
Bugbot
|
Teams standardized on Cursor
|
Yes
|
Yes
|
No
|
No
|
No
|
|
Copilot code review
|
Teams already on Copilot
|
No
|
Yes
|
No
|
Yes
|
No
|
|
Greptile
|
Full-codebase context
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Qodo
|
Review independent of the agent
|
Yes
|
Yes
|
Yes
|
No
|
No
|
|
Semgrep
|
Engineering teams prioritizing just security scanning
|
Yes
|
No
|
Yes
|
No
|
Yes
|
|
Snyk
|
Enterprise AppSec with PR fixes
|
Yes
|
No
|
No
|
No
|
Yes
|
Expert Insights is an independent editorial team. For this comparison we worked from vendor documentation, verified user reviews, independent benchmarking, and first-hand accounts from practitioners running these tools in production. We tried products first hand where possible. This article was researched and written by Joel Witts and technically reviewed by Craig MacAlpine. Read our full methodology
Enforcing quality gates on AI-generated code
SonarQube is a code quality and security platform that applies static analysis to scan developer-written and AI-generated code for bugs, flaws, and quality issues. Sonar’s agentic review agent is built on its acquisition of Gitar in May 2026. The AI code review agent works inside GitHub and GitLab pull requests for easier deployment.
The analysis engine is deterministic rather than generative. The same code produces the same findings regardless of who runs the analysis or when, and the same rules apply to AI-generated and human-written code. Because results do not vary between runs, findings can be used to pass or fail a build.
AI Code Assurance tags and tracks AI-generated changes across repositories, applies elevated quality gates to tagged code, and reports AI-driven risk in dashboards for engineering leads and security teams. Compliance reporting covers the OWASP Top 10 for LLM Applications, including prompt injection and insecure output handling, alongside OWASP Top 10, OWASP MASVS, CWE Top 25, PCI DSS, STIG, CASA, and MISRA C++:2023.
Sonar is the strongest solution on this list for teams that want AI code governed, rather than simply reviewed. The agentic AI quality gate is the only published, itemized pass-or-fail standard for agent output in this market. The commercials are very strong for small and mid-sized teams, with unlimited users, projects, and scans. This means it can scale with your AI adoption timelines. Sonar is a strong choice for teams in regulated industries that need strong compliance checks, if you operate large or multi-language codebases, and you want to cut down on false positives.
Security and quality in one
Aikido is a popular AppSec platform covering code security, cloud posture management, pen testing, and runtime protection. Aikido is used by 50k organizations globally. Aikido’s code security platform covers static code analysis, open-source dependency scanning, deep PR review, AI quality reviews, secrets detection, and malware detection.
Two of the most important features for reviewing AI code are the AI Code Quality and Deep PR review features. Aikido Code Quality implements AI-powered code quality checks on pull requests and full-repository scans.
It works across all new code as you ship, and all existing code in your repo. It works by checking code against Aikido’s built-in rules and any custom rules your team has written, and findings are generated in plain language with clear fix guidance. You can either run PR checks as you change lines or conduct a full repository scan of the entire code base.
Aikido Deep PR review catches bugs and potential vulnerabilities before you merge new code. Aikido’s agents review all pull requests, with full working context of your entire repository.
Aikido has an MCP server which works with Claude Code, Cursor, OpenAI Codex CLI, Gemini CLI, JetBrains AI, GitHub Copilot and OpenCode. IDE plugins include VS Code, Visual Studio, JetBrains IDEs, Cursor, Windsurf, Kiro, Google Antigravity and Eclipse.
Aikido is a popular platform with a strong userbase of over 50,000 organizations globally. The platform stands out for its broad capabilities, making it a strong choice for teams looking to build a multi-layer AppSec toolkit. It’s a strong choice for teams looking to review new AI code, asses their code health across their entire codebase, clean-up older AI generated code, and enforce custom rules and standards tailored to your organization’s specific requirements.
Governing AI code at scale
Codacy is a code quality and static analysis platform. It reviews your code in your developers’ IDEs, on every pull request, and inside the AI coding agents your team writes with.
Codacy’s AI Reviewer comments on pull requests with fix suggestions developers can commit in one click, and writes a summary of what changed. It also scores findings it thinks are false positives, with an explanation, so your team can clear them quickly. AI Reviewer runs directly in GitHub, with AI comments for GitLab and Bitbucket.
Guardrails is Codacy’s integration for AI coding agents. It gives the agent your written coding standards through an MCP server, then checks each line as the agent writes it. When the agent breaks a rule, Codacy tells it where and why, and the agent fixes the code before you see it.
The AI Risk Hub covers the risks specific to AI-assisted development. It blocks code that calls language models your organization has not approved, catches invisible unicode characters before they reach production, and keeps a running inventory of every model your developers use. It also scans for hardcoded secrets, insecure dependencies, and SQL injection.
Codacy covers 49 languages on the Team plan and 38 on the free tier, with IDE plugins for VS Code, Cursor, Windsurf, and JetBrains.
We recommend Codacy for organizations governing AI-assisted development across several engineering teams. It treats unapproved model use as a code review problem, which is important if you want to build more visibility into which models your developers use. Guardrails give your coding agents the same rules your human developers work to and fixes the code before a human needs to review it. Setup is quick, a full scan finishes in minutes, and the reporting is clear.
Widest source control coverage
CodeRabbit is a dedicated AI code review platform. It runs on every pull request across GitHub and GitHub Enterprise Server, GitLab.com and self-managed GitLab, Bitbucket Cloud and Data Center, and Azure DevOps.
Codegraph, CodeRabbit’s analysis engine, maps your entire repository, including dependencies and legacy code structures, then shows how each change affects files.
CodeRabbit reads output from more than 40 linters and static analysis tools you already run, so your existing configuration keeps working. It also draws on your change history, your tickets and your CI output.
Alongside its line comments, CodeRabbit writes a plain-language summary of each pull request, a walkthrough, and sequence diagrams showing the call flow of a change. Its Learnings feature adapts reviews to your repository over time.
CodeRabbit is a dedicated code review platform, with more than 1 million installs and 8 million pull requests reviewed. We recommend it in particular for teams that run GitHub Enterprise Server, self-managed GitLab and Bitbucket Data Center. We like that CodeRabbit reads the linters your team has already tuned instead of replacing them, so your existing configuration keeps working. We also like the diagrams and walkthroughs, which cut the time a reviewer needs to understand an unfamiliar change.
Teams standardized on Cursor
Bugbot is Cursor’s code review agent. It runs automatically on new pull requests across GitHub, GitLab, and Bitbucket, including self-hosted instances, with Azure DevOps in limited availability. Thousands of teams run it as a required check before merge.
Bugbot reviews a change against the code around it, so it catches problems in how your change interacts with existing components, not only in the lines your developer edited.
You can write your team’s standards into .cursor/BUGBOT.md files. Bugbot then loads these files at your repository root plus any it finds on the way up from each changed file, so a rule in your backend folder applies only when backend files change.
Bugbot can also suggest rules of its own, based on which of its comments your team accepts, dismisses or replies to. Your developers can teach it directly by commenting @cursor remember followed by the fact.
We recommend Bugbot if your team is standardized on Cursor. Review takes place directly in the Cursor editor, and there is no new vendor to onboard. We like that it reviews against the surrounding codebase, which catches the class of bug where a change is correct on its own and wrong in context. Bugbot needs a paid Cursor plan and moved to usage-based billing in June 2026, at a published average of $1.00 to $1.50 per run. Something to be aware of: SpaceX completed its acquisition of Cursor’s parent company in August 2026.
Teams already on Copilot
GitHub Copilot code review runs on pull requests in GitHub.com, with Azure DevOps in public preview. You simply add Copilot as a reviewer and it returns comments in under 30 seconds. It writes suggested changes developers can apply in a couple of clicks. It can review any language.
You can teach it your own standards in four ways: repository-wide instructions in .github/copilot-instructions.md, path-specific instruction files, an AGENTS.md file that other tools read too, and agent skills in .github/skills.
There are two types of reviews you can choose. Lite gives fast feedback on bugs, security flaws, and style. Balanced sends the change to a higher-reasoning model for complex logic and cross-service changes, and costs more credits. Each review consumes between $0.05 and $5.00 of AI credits, plus GitHub Actions minutes.
Copilot code review cannot block a merge. It always leaves a comment review, so its findings never count toward required approvals. Merge gating on GitHub comes from a separate product, GitHub Code Quality.
We recommend Copilot code review as a no-brainer for teams already paying for Copilot. Most of your developers have it, meaning that there is no new vendor spend. There are some limitations. It cannot fail a build, so it advises rather than enforces. Copilot cannot see replies to its own comments, so there is no back and forth, and it can repeat comments your team has already dismissed. It is not available on GitHub Enterprise Server at all. But it’s a helpful tool for coders using Copilot to improve code quality and keep on top of security risks.
Full-codebase context
Greptile indexes your repository as a graph of files, functions, and dependencies, then reviews every pull request against that index. Its agents work in parallel and assess a change across the whole codebase, so if a change in one file impacts another, Greptile will catch it.
Every review carries a confidence score from 0 to 5, with 5 meaning that the change is ready to merge, and a 0 or 1 means Greptile found critical problems. Individual comments carry P0, P1 or P2 badges, with P0 reserved for security flaws, data loss, and crashes.
Greptile also provides some control over how much feedback it provides. There are three levels that run from “verbose” to critical issues only. When setting up you add a .greptile folder into your repository which defines these rules in plain markdown. Greptile merges every .greptile folder from your repository root down to the file it is reviewing, so rules can be scoped by directory.
Greptile covers all important changes by reading the first and last commit of every pull request to see which comments were acted on. On specific issues it will stop commenting after your team ignores it around three times. But it never suppresses security issues or logic errors.
Greptile supports GitHub and GitLab, including self-hosted instances in air-gapped environments. Over 22,000 teams use it, including NVIDIA, Brex, Klaviyo, and Zapier. Pricing is $30 per seat per month.
Greptile is a strong fit for software companies with in-house engineering teams, from startups to large tech organizations. We recommend Greptile if you run large or interconnected repositories where a diff-only reviewer will miss important changes in files. Greptile publishes inspectable pull request links in public NVIDIA, Meta, and Solana repositories showing bugs it caught, so you can check the evidence yourself before you buy. We like the learning system, which measures which comments your team acted on rather than asking you to configure it.
Reviews that are independent of the agent
Qodo is a code review and governance platform for enterprises running AI-assisted development across many repositories. It began as CodiumAI, and its review agent grew out of PR-Agent, an open-source AI pull request reviewer that is now community-maintained.
Qodo splits each review across specialist agents, then passes their findings through a “judge” agent that filters out false positives. Its context engine reads your codebase, your pull request history and the requirements written in your tickets, so comments have more context than just the syntax.
The Rule Miner feature writes rules and standards that follow your organization’s typical workflows. On first deployment, it reads up to 1,000 of your recently merged pull requests and proposes up to ten rules. It then reviews recent merges every two weeks and proposes up to five more per repository. Nothing is enforced until an admin approves it.
Rule health monitoring tracks how well each rule performs, and flags rules that conflict with each other or have stopped catching anything.
Qodo supports GitHub, GitLab, Bitbucket, Azure DevOps, and Gerrit (enterprise only). Other benefits include zero data retention, with on-premises and air-gapped deployment available.
We recommend Qodo for large engineering organizations, including those outside tech, where code review has to run inside your own infrastructure. Intel, Walmart, Intuit, and Macmillan are customers, and Qodo runs on-premises or air-gapped as well as SaaS, so it fits teams that can’t send source code to a vendor’s cloud. We also like that the reviewing agent is kept separate from the agent that wrote the code, so nothing is marking its own homework. The judge agent is another strong feature, because review noise is the most common reason developers stop paying attention to review findings.
Engineering teams prioritizing just security scanning
Semgrep is an application security platform. It reviews code specifically for security flaws, not for quality or maintainability.
Semgrep Multimodal combines rule-based static analysis with AI reasoning, which lets it find broken authorization, insecure direct object references, and logic flaws that span several steps. It covers more than 35 languages, around 20 of them fully supported, and follows data across file and function boundaries on eight.
Memories records your team’s triage decisions. When one of your developers dismisses a finding, that decision holds across every project in your organization and the finding does not come back.
Semgrep Guardian scans every file an AI coding agent writes and asks the agent to write it again when the scan fails, repeating until the code is clean. It can be installed into Claude Code, Cursor, Codex, GitHub Copilot, VS Code, Windsurf, and Kiro.
You can write rules in YAML against an open-source engine. Semgrep also publishes a public registry you can fork from. Teams pricing starts at $30 per contributor per month for one product, and getting Code, Supply Chain, and Secrets together means Enterprise.
We recommend Semgrep for companies with a dedicated application security team, where security rather than engineering owns code scanning. It’s a strong choice if you already run Semgrep for static analysis and want AI-written code covered by the same rules and the same dashboard, rather than adding a second product with its own findings and its own triage queue. We also like that rules are written in YAML against an open-source engine, so your own engineers can author them without waiting on the vendor. Semgrep reviews for security only, with no maintainability or architecture feedback, so pair it with a quality tool if you need both.
Enterprise AppSec with PR fixes
Snyk is an enterprise application security platform. Its reviewer, Snyk Agent Fix, comments on your pull requests with the severity of each issue and the path data takes through your code to reach it.
Developers can fix issues just by talking to the Snyk agent. Replying @snyk /fix generates up to five candidate fixes, and @snyk /apply commits the one they choose. Behind that, Snyk generates each candidate against a library of more than 35,000 real vulnerability and fix pairs written by its own researchers, checks each candidate with its own static analysis engine, and discards any that do not resolve the issue or introduce a new one.
Snyk API and Web adds dynamic testing. It finds broken authorization and object-level access flaws by exercising a running application, then links each finding back to the line of code responsible.
Snyk Code documents 16 language families, including COBOL, Apex, and Rust, and its engine trains on permissively licensed open source rather than on customer code.
Pull request coverage spans GitHub, GitHub Enterprise, GitLab, Bitbucket Cloud and Server, and Azure Repos. You configure blocking in your source control platform’s own branch protection rules.
Snyk is a strong choice for enterprise security teams, including those in regulated and non-tech industries with large in-house development. We particularly recommend Snyk for enterprise application security teams that want AI-assisted fixes inside the pull request. It delivers plain language conversational fix generation with dynamic testing, which matters because AI-written code fails more often on authorization and business logic than on the memory-safety bugs static analysis was built for.
Snyk checks its own generated fix with its static analysis engine before offering it, and discards fixes that don’t resolve the issue or that introduce a new one. We also like that the model is trained on permissively licensed open source code and never on customer code.
Here is how the leading AI code review tools compare on published pricing and billing model.
| Product | Starting Price | Billing | Link |
|---|---|---|---|
|
SonarQube
|
Free Community Build and free tier to 50k lines; Cloud Team from $34/month; Gitar from $20/user/month
|
Monthly or annual, unlimited users
|
|
|
Aikido Security
|
Free tier for 2 users; Basic $300/month for 10 users; Pro and Advanced $600/month
|
Monthly, flat rate plus users
|
|
|
Codacy
|
Free forever developer tier; Team from $18/developer/month annually
|
Monthly or annual
|
|
|
CodeRabbit
|
Pro $24/user/month; Pro Plus $48/user/month; Security add-on $40/user/month
|
Annual, per user
|
|
|
Bugbot
|
Included on Cursor Pro at $20/month and above, then usage-based
|
Usage-based, published average $1.00 to $1.50 per run
|
|
|
Copilot code review
|
Requires a paid Copilot plan from $10/month; Business $19/seat, Enterprise $39/seat
|
Per review, $0.05 to $5.00 in AI credits
|
|
|
Greptile
|
Free Starter tier; Pro $30/seat/month
|
Monthly, credit-based per seat
|
|
|
Qodo
|
Credits at $0.012 each, pooled across the team; Enterprise required above 30 users
|
Credit packs, no per-seat price published
|
|
|
Semgrep
|
Free to 10 contributors; Teams from $30/contributor/month per product
|
Monthly, modular per product
|
|
|
Snyk
|
Free tier; Team from $25/contributing developer/month; Ignite from $1,260/year
|
Monthly or annual, per contributing developer
|
|
These are the questions we recommend working through before you commit to an AI code review tool. Several of them separate products that look identical on a feature list.
If you already run GitHub with Dependabot, or have Copilot licenses across the team, start by working out which new features you require that your existing tool doesn't already cover. Build out the specific use cases which you can evaluate vendors against.
Some tools enforce a policy you define and stop the merge. Others comment, and your developer can merge straight past them. Check the vendor documentation, because the marketing pages do not distinguish between the two.
Per-seat, per-review, per-line, and credit-pool models produce very different bills at the same volume. A high-velocity team on per-review pricing can pay several times what a per-seat plan would cost. Model your actual monthly pull request count against each vendor's structure before you compare headline prices.
Security scanning is a separate line item at several vendors, and modular pricing can triple the per-developer cost. Build your comparison from the configuration you will actually buy, not the entry tier.
Support for GitHub.com does not mean support for GitHub Enterprise Server, and several tools cover GitLab.com but not self-managed GitLab. If you run self-hosted or air-gapped repositories, shortlist on that basis first, because it eliminates several options immediately.
Some products read a configuration file you write. Others generate rules from your team's past review comments. The second approach takes less work upfront and gives you less direct control over what gets enforced, so decide which trade-off you want before the trial.
Ask whether your code is retained, whether it trains any model, and whether you can bring your own model keys or run the scanner locally. Several vendors offer zero retention or fully local scanning, and several do not.
Tools without enforcement and management backing get ignored. Roll out a handful of high-severity rules with an agreed exception process, and add rules once your developers trust the ones you started with.
If you need AI-generated code governed against a written standard, SonarQube is our first recommendation. Its agentic AI quality gate publishes an itemized pass-or-fail standard for agent output, and every license includes unlimited users, projects, and scans.
If you want security and code quality review on one platform, we recommend Aikido, which publishes its pricing. If you are governing AI code across many engineering teams and need visibility of which models your developers call, we recommend Codacy.
We recommend CodeRabbit if you run self-hosted source control, because it covers all four major platforms including self-managed instances. If your team is standardized on Cursor, we recommend Bugbot.
Copilot code review is the right baseline for teams already licensed, provided you accept that it cannot fail a build. We recommend Greptile for large or interconnected repositories, and Qodo for enterprises that need review independent of their coding agents.
Semgrep and Snyk are the security-first options, and we recommend Snyk if you want dynamic testing that catches the authorization and business logic flaws AI-generated code produces most often.
Some can and some cannot, and this is the most important distinction in the market. Sonar, Aikido, Codacy, CodeRabbit, Qodo, Semgrep, and Snyk all support gating a merge on a policy you set. Other vendors leave a comment review, so their comments never count toward required approvals.
Per-seat pricing runs from $18 to $48 per developer per month across the tools on this article. Usage-based options charge per review, with GitHub consuming $0.05 to $5.00 of AI credits per review depending on the effort level. Free tiers exist at most vendors, though several exclude AI review from them.
CodeRabbit supports all four major platforms including self-managed GitLab and Bitbucket Data Center. Bugbot, Aikido, Semgrep, and Snyk cover all four with some caveats. Greptile supports GitHub and GitLab. GitHub Copilot code review covers GitHub.com and Azure DevOps in preview and is not available on GitHub Enterprise Server at all.
Further reading on application security from Expert Insights — buyers' guides, comparison articles, and platform-specific shortlists.
Joel is the Director of Content and a co-founder at Expert Insights; a rapidly growing media company focused on covering cybersecurity solutions.
He’s an experienced journalist and editor with 8 years’ experience covering the cybersecurity space. He’s reviewed hundreds of cybersecurity solutions, interviewed hundreds of industry experts and produced dozens of industry reports read by thousands of CISOs and security professionals in topics like IAM, MFA, zero trust, email security, DevSecOps and more.
He also hosts the Expert Insights Podcast and co-writes the weekly newsletter, Cyber Weekly. Joel is driven to share his team’s expertise with cybersecurity leaders to help them create more secure business foundations.
Craig MacAlpine is CEO and Founder of Expert Insights. Before founding Expert Insights in August 2018, Craig spent 10 years as CEO of EPA Cloud, an email security provider that rebranded as VIPRE Email Security following its acquisition by Ziff Davis, formerly J2Global (NASDAQ: ZD) in 2013.
Craig is a passionate security innovator with over 20 years of experience helping organizations to stay secure with cutting-edge information security and cybersecurity solutions.
Using his extensive experience in the email security industry, he founded Expert Insights with the singular goal of helping IT professionals and CISOs to cut through the noise and find the right cybersecurity solutions they need to protect their organizations.