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AI code review tools: 2025 evaluation guide
We built the industry’s first controlled evaluation framework to compare leading AI code review tools. Inside you’ll find:
Benchmark results: CodeRabbit vs. LinearB vs. Copilot
Tactical guidance on how to run the experiment yourself with real injected bugs
Tool fit guide to help your team choose the right tool based on your unique priorities
AI code review tools: 2025 evaluation guide
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Benchmark results
We ran a head-to-head benchmark of 5 leading AI code review tools using real-world code and seeded bugs. You’ll find the results broken down by:
Clarity: Did each tool catch the bug, propose a fix, and explain why?
Composability: Which tools have a high signal-to-noise ratio?
DevEx: Is there minimal friction during set-up and a seamless DevEx?
How to run the experiment yourself
Our benchmark was designed to be fully reproducible. Inside you’ll find step-by-step guidance on how to run the test yourself with the following resources:
All code changes, injected bugs, and review artifacts
Evaluation scripts, documented and preserved in a version-controlled repository
Detailed documentation for replicating the complete testing methodology
Tool fit guide
Beyond test scores, selecting the right AI code review tool also involves evaluating your team’s unique priorities. This section includes:
A comparative overview of features across tools, including strengths & trade-offs
Tool fit suggestions, according to different team sizes and workflows
Guidance on what to consider during vendor evaluations
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