Greptile

Greptile is an AI code review platform that analyzes pull requests with full codebase context, learning your team's coding standards and patterns over time. It integrates directly into GitHub workflows and offers a bot that automatically reviews code changes, catches real bugs, and enforces custom rules. The platform recently introduced TREX, a feature that runs your code as part of the review process.

What It Is

Greptile is an AI-powered code review assistant designed for software development teams. Rather than reviewing code in isolation, it constructs a graph of your repository and adjacent repositories so that every review understands changes in the context of the broader codebase. The tool is positioned as a code reviewer that gets smarter the more you use it — learning from developer feedback, reactions, and what gets merged.

Core Capabilities

• Full codebase context: Greptile builds a dependency graph across repos so reviews reflect the broader system, not just the diff.
• Custom rules: Teams can define coding standards, patterns, and project-specific context that Greptile enforces on every PR.
• Configured in code: Settings can be defined at the repo level via a greptile.json file, scoped to specific directories, file types, or teams.
• Auto-detection of existing rule files: Greptile automatically indexes files like claude.md, AGENTS.md, and .cursor rules for richer review context.
• Adaptive learning: The system learns from developer reactions, tags, and merge history to make reviews more relevant over time.

TREX: Running Your Code

Greptile recently launched TREX, a new capability that goes beyond static analysis by actually running code as part of the review process. According to the product page, TREX is designed to test every code change, adding a dynamic execution layer on top of the existing AI review agent. This represents a significant expansion from comment-based review toward active validation.

Deployment and Configuration

Greptile connects to GitHub repositories and can be configured at multiple levels:

• Org-wide defaults via the dashboard
• Repo-level settings via greptile.json
• Directory-level rules via .greptile/rules files scoped to the directories each team owns

An Enterprise tier offers the option to self-host within your own infrastructure, along with SSO/SAML, GitHub Enterprise support, and custom compliance terms.

Target Audience

Greptile targets individual developers, engineering teams, and large organizations. The platform offers a free tier for solo developers, a per-seat team plan, and custom enterprise pricing. It also provides free access for qualified open-source projects under MIT or Apache licenses, and a discount program for pre-Series A startups.