Best AI tools to aI code review on pull requests

Short answer

CodeRabbit ranks #1 for aI code review on pull requests (score 8.6/10). Pricing: From $24/user as listed; free tier: Unverified. Runners-up: Greptile, Graphite.

Top 5, ranked by our published rubric. Sponsorship never affects the order. Last updated 2026-10-13.

Compare the top 5 side by side

#	Tool	Score	Pricing	Paid from	Free tier	What it is
1	CodeRabbit	8.6	From $24	From $24/user as listed	Unverified	AI code reviews
2	Greptile	7.9	From $30	From $30/seat as listed	Unverified	AI code review with codebase context
3	Graphite	7.1	From $20	From $20/user as listed (billed annually)	Unverified	Stacked PRs and AI code review
4	GitHub Copilot	7.0	Free tier	Pro $10/mo	yes	AI pair programmer
5	Qodo	6.7	Paid	Usage-based (monthly included credits + overage)	no (14-day trial)	AI code quality and testing

Rank 1

CodeRabbit

From $24Visit CodeRabbit (opens in a new tab)

AI code reviews

Score 8.6/10Paid from: From $24/user as listedFree tier: UnverifiedLast verified 2026-10-13

Why ranked: Its own site says: “Ship more software, faster, with code you trust.” We placed it 1st of 5 on fit for this task. No free plan confirmed; paid from From $24/user as listed.

Fit 10.0 · value 5.6 · breadth 8 · availability 10 (how we score) · pricing source · site live

Rank 2

Greptile

From $30Visit Greptile (opens in a new tab)

AI code review with codebase context

Score 7.9/10Paid from: From $30/seat as listedFree tier: UnverifiedLast verified 2026-10-13

Why ranked: Its own site says: “AI Code Reviews that understand your entire codebase.” We placed it 2nd of 5 on fit for this task. No free plan confirmed; paid from From $30/seat as listed.

Fit 8.5 · value 5.6 · breadth 8 · availability 10 (how we score) · pricing source · site live

Rank 3

Graphite

From $20Visit Graphite (opens in a new tab)

Stacked PRs and AI code review

Score 7.1/10Paid from: From $20/user as listed (billed annually)Free tier: UnverifiedLast verified 2026-10-13

Why ranked: Its own site says: “Graphite helps teams on GitHub deliver higher quality software, faster.” We placed it 3rd of 5 on fit for this task. No free plan confirmed; paid from From $20/user as listed (billed annually).

Fit 7.0 · value 6.9 · breadth 6 · availability 10 (how we score) · pricing source · site live

SPONSORED Your tool here: paid placement is shown here, separate from the ranking, and never changes the order. Advertise

Rank 4

GitHub Copilot

Free tierVisit GitHub Copilot (opens in a new tab)

AI pair programmer

Score 7.0/10Paid from: Pro $10/moFree tier: yesLast verified 2026-10-13

Why ranked: Its own site says: “GitHub Copilot works every step of the way, from an open issue to reviewing and merging a pull request.” We placed it 5th of 5 on fit for this task. Free tier; paid from Pro $10/mo.

Fit 4.0 · value 10.0 · breadth 10 · availability 10 (how we score) · pricing source · site live

Rank 5

Qodo

PaidVisit Qodo (opens in a new tab)

AI code quality and testing

Score 6.7/10Paid from: Usage-based (monthly included credits + overage)Free tier: no (14-day trial)Last verified 2026-10-13

Why ranked: Its own site says: “Qodo is an AI code review tool giving teams deep codebase context to move faster and improve code quality, with 15+ agentic workflows for IDEs, PRs and security.” We placed it 4th of 5 on fit for this task. No free plan confirmed; paid from Usage-based (monthly included credits + overage).

Fit 5.5 · value 5.6 · breadth 10 · availability 10 (how we score) · pricing source · site live

FAQ

What is the best AI tool to aI code review on pull requests?

By TaskRanking's published rubric, CodeRabbit ranks first, followed by Greptile and Graphite.

Is there a free AI tool to aI code review on pull requests?

Yes: GitHub Copilot has a free tier per its own pricing page (checked 2026-10-13).

How are these tools ranked?

Score = 50% fit, 25% value (from vendor pricing pages), 15% breadth, 10% availability. Sponsorship never affects rank.