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Kanjin and Greptile: before the pull request, and on it.

Greptile reviews each pull request with a graph of the whole codebase, and can hand its comments to your agent. Kanjin starts earlier: your agent takes the Jira ticket, and reviews and fixes its change before the pull request exists.

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Greptile Kanjin

When it reads the change On each pull request. Its CLI also reviews the committed changes of a branch before a pull request. In the ticket’s worktrees, before the pull request exists, and again in the pull request review.

Who writes the review Greptile’s own AI, with a graph of the whole codebase. Your own coding agent runs Review, Overengineer and Fix, signed in with your own plan. Then you review the change.

Where the result goes A summary comment with a confidence score from 0 to 5, inline comments and suggested fixes. The ticket session and the review in Kanjin. Kanjin never comments on a pull request.

How you read the change On the Git host, with its comments. Its own review interface also groups the changes of a pull request. In Kanjin’s review: the blocks that preserve behavior fold, and every other change stays on screen, in the original code with its line numbers.

Fixes Fix with your Agent sends a comment to Claude Code, Codex, Conductor, Cursor or Devin, through the Greptile Bridge on your machine. Fix runs on your agent in the worktrees and checks each finding first. After a push, Fix Failures sends the failed GitHub checks and the open review threads to your agent.

Approval and merge Auto-approve, in beta and off until you turn it on, approves after a review of 5 out of 5 within your chosen risk level. An optional status check passes or fails. Kanjin never approves a pull request, never merges one, and never labels a change safe to merge.

Git hosts GitHub, GitLab and Bitbucket, and more hosts on its enterprise and on-premises plans. GitHub, GitLab and Bitbucket, and local folders on your Mac.

What Greptile does

Greptile is an AI code review agent. It reviews each pull request with a graph of the whole codebase, and posts a summary with a confidence score, inline comments and suggested fixes.

It reads Jira, Confluence and Linear, and its CLI can import rules from files such as CLAUDE.md and AGENTS.md. Fix with your Agent hands a comment to your coding agent, such as Claude Code or Codex.

What Kanjin does instead

Greptile reviews the pull request, then hands its comments to your agent. Kanjin starts earlier: your agent takes the Jira ticket, works in a worktree in each repository, and runs Review, Overengineer and Fix before the pull request exists.

Kanjin never comments on the pull request and never approves it. Its own review folds the blocks that the classifier judges behavior-preserving, so you read the business logic first.

Using both

Kanjin works in the worktrees and in its own review, and Greptile works on the pull request. Both send findings to your own agent: Greptile with Fix with your Agent, and Kanjin with Fix and, on GitHub, Fix Failures.

Questions

Is Kanjin a Greptile alternative?

For a part of the work. Greptile is a reviewer that comments on each pull request. Kanjin is a development environment in which your own agent reviews and fixes its change before the pull request, and in which you read a shorter diff.

Can I use Kanjin and Greptile together?

Yes. They work at different moments, and both bring findings back to the agent that you already use.

Sources

The facts about Greptile come from its own pages, as they read on 19 October 2026. A product changes often; the vendor’s pages are the reference. Greptile is a trademark of its owner, and Kanjin is not affiliated with Greptile.

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