Best AI Code Review Tools in 2026: CodeRabbit vs Qodo vs Greptile vs GitHub Copilot

Four names keep coming up when a team asks "which AI code review tool should we actually buy": CodeRabbit, Qodo, Greptile, and GitHub Copilot's built-in reviewer. They don't compete on the same axis, though, and picking based on a features checklist misses the part that actually determines your bill: three of them price per seat, one prices flat per team, and one only exists as an upsell inside a subscription you might already have. This guide compares the current 2026 pricing and picks a default for the three team shapes that matter most - solo/small, mid-size, and "we already pay for Copilot."

How the four tools actually differ

CodeRabbit and Greptile both charge per seat, so their cost scales linearly with headcount. Qodo charges a flat monthly fee that covers an entire team up to 30 people, which flips the usual SaaS math - it gets relatively cheaper as you add developers, up to that cap. GitHub Copilot's review feature isn't sold on its own at all; it's a capability bundled into every paid Copilot tier ($10/month Pro and up), so the real comparison is "you probably already have it if you pay for Copilot" versus "buy a separate, deeper tool."

Pricing, verified against the source

Here's what CodeRabbit's, Qodo's, Greptile's, and GitHub Copilot's own pricing pages said as of July 12, 2026.

Two things worth flagging before you shortlist anything. First, every one of CodeRabbit's headline numbers on its marketing page is the annual rate - month-to-month costs 25% more on both Pro and Pro Plus ($30 vs. $24, $60 vs. $48). Second, GitHub markets Copilot as one product, but pull request review is gated by tier in only one direction: it's absent on Free, and present on every paid tier - Pro, Pro+, Max, Business ($19/user/month), and Enterprise ($39/user/month) all include it.

CodeRabbit: the deepest single-purpose reviewer

CodeRabbit is built to be a standalone code review product, not a bolt-on to something else, and its plan structure reflects that: static analysis tools (linters, SAST) and IDE/CLI review are baked into every tier, including the free plan. Pro adds Jira and Linear integrations plus 20 pre-merge checks; Pro Plus ($48/mo/seat annual) adds custom pre-merge checks and automated merge-conflict resolution, which is a genuinely rare feature in this category. Enterprise adds self-hosting, SSO, RBAC, and audit logging for teams that need to keep review data inside their own infrastructure.

The trade-off is the per-seat math. A 5-person team lands at $120-150/month depending on billing cadence, and a 15-person team is $360-450/month - real money for a tool doing one job, however well it does it. CodeRabbit is the right default when review depth (security scanning, style enforcement, agentic chat) matters more than raw team size, and when you can commit to annual billing to get the lower rate.

Qodo: flat pricing for teams up to 30

Qodo (the product formerly built around CodiumAI's PR-Agent) prices differently from the other three, and that difference is the whole reason to consider it. Pro Team costs $30/month flat - not per seat - and covers up to 30 users, with review volume metered by a shared credit pool rather than a per-user cap. Qodo's own pricing page markets "unlimited reviews," which needs a caveat: what's actually unlimited is how many reviews you can attempt, not how many credits you have to pay for them with. Credit packs run 2,500 / 5,000 / 20,000 per month at $0.012 per credit for overage, with a monthly overage ceiling the customer sets - so "unlimited" in practice means "unlimited until your team hits the spending cap it configured."

For a team of 10-25 developers, this is close to unbeatable on price: the same headcount on CodeRabbit or Greptile would cost 8-10x more per month. The catch is credit consumption at scale - a team that reviews aggressively (multiple PRs per developer per day) should model actual review volume against the 2,500/5,000/20,000 tiers before assuming the flat $30 covers everything indefinitely. Enterprise, for teams past 30 users, moves to custom pricing with SSO/SAML, audit logs, and the option to bring your own LLM keys (BYOK).

Greptile: built around full-repository context

Greptile's pitch is architectural rather than feature-based: it indexes the entire repository, not just the diff in front of it, so its review comments are meant to catch issues that only make sense in light of code elsewhere in the codebase - a function signature that changed somewhere the PR doesn't touch, a pattern the rest of the repo already established. Pro costs $30/seat/month with 50 credits included per seat (one credit per standard review, three credits for its deeper "TREX" review mode) and $1 per additional credit beyond that.

Pricing-wise Greptile sits right next to CodeRabbit Pro's monthly rate, so the decision between them is really about what you're optimizing for: CodeRabbit leans toward static-analysis depth and IDE/CLI reach, Greptile leans toward whole-codebase awareness. Greptile also has two discount paths worth knowing about - free access for qualified open-source projects under MIT or Apache licenses, and 50% off for pre-Series A startups under $2M in trailing revenue.

GitHub Copilot: you probably already have it if you pay for Pro or above

The honest framing here is that GitHub Copilot isn't a code review tool you buy separately - it's a capability bundled into every paid Copilot tier. Only Free ($0) leaves it out entirely; a developer on the free plan gets zero code review capability from Copilot regardless of how much they use completions and chat. Starting at Pro ($10/user/month), pull request review and file-diff review are included, and they stay included through Pro+ ($39/user/month) and Max ($100/user/month) for individual accounts.

For organizations, Business ($19/user/month) and Enterprise ($39/user/month) both include the same review capability. If your team already sits on Pro or above for the completion and chat features, you already have code review - there's no separate purchase or upgrade needed to turn it on. The real decision isn't access, it's depth: if you want deeper static analysis, full-repository context, or custom review rules than Copilot's built-in reviewer provides, the other three tools in this comparison are built for exactly that job and priced accordingly - see our comparison of Cursor and GitHub Copilot if you're evaluating Copilot's broader value beyond review.

Who actually wins, by team shape

For a broader shortlist that includes Snyk-style security scanning alongside pure code review, our companion PR review comparison and the pricing-focused AI code review tools breakdown cover adjacent angles worth checking before you commit budget.

The verdict

None of these four is a wrong answer for every team - they're solving slightly different problems. CodeRabbit and Greptile both bet that review quality per seat is worth paying for linearly as you grow; Qodo bets that a flat team price wins below 30 users; GitHub Copilot bets you'd rather not add a fourth vendor when review is already included in a plan you're paying for anyway. Model your actual team size and review volume against the numbers above - not the plan names - before you sign an annual contract, especially with CodeRabbit's 25% monthly-vs-annual gap and Qodo's credit ceiling both being easy to miss on a first read of the pricing page.