Best AI for Code Review
Compare AI models for code review — bug detection, refactoring suggestions, security linting and pull-request feedback.Rankings combine multiple benchmark scores weighted by relevance to this use case. Updated August 2026.
Why This Matters
Code Review is one of the most common AI workloads — and the best model depends heavily on the specific task. A model that excels at creative writing may struggle with structured data extraction, and vice versa.
We built this use-case ranking by combining multiple benchmark categories with weights tuned to match real-world usage patterns. For code review, the score emphasizes the benchmarks that matter most: task accuracy, output quality, and consistency. Speed and cost are factored in but secondary to quality.
All scores are from public independent benchmarks. For a broader view across all tasks, see the overall LLM leaderboard or the expert picks page.
Quick Answer
The best AI models for code review are:1. Claude Fable 5 (Anthropic, score: 84.8), 2. Claude Fable 5.1 (Anthropic, score: 79.9), 3. GPT-6 Astra (OpenAI, score: 78.1).
| # | Model | Provider | Score | Speed | Price (output) |
|---|---|---|---|---|---|
| 1 | Claude Fable 5 | Anthropic | 84.8 | 71 t/s | $50/M |
| 2 | Claude Fable 5.1 | Anthropic | 79.9 | 85 t/s | $15/M |
| 3 | GPT-6 Astra | OpenAI | 78.1 | 82 t/s | $50/M |
| 4 | Kimi K3 | Moonshot AI | 76.0 | 37 t/s | $15/M |
| 5 | Claude Mythos Preview | Anthropic | 75.0 | 80 t/s | $15/M |
| 6 | Claude Fable 5.1 (XHigh) | Anthropic | 73.8 | 78 t/s | $15/M |
| 7 | Claude Fable 5.1 (High) | Anthropic | 73.8 | 92 t/s | $15/M |
| 8 | Claude Fable 5.1 (Medium) | Anthropic | 73.8 | 104 t/s | $15/M |
| 9 | Claude Fable 5.1 (Low) | Anthropic | 73.8 | 118 t/s | $15/M |
| 10 | Claude Opus 5.5 | Anthropic | 72.6 | 68 t/s | $25/M |
| 11 | Claude Opus 4.8 | Anthropic | 69.2 | 50 t/s | $15/M |
| 12 | GPT-5.6 Sol | OpenAI | 68.1 | 72 t/s | $30/M |
| 13 | Claude Opus 5.5 (XHigh) | Anthropic | 64.8 | 62 t/s | $25/M |
| 14 | Claude Opus 5.5 (High) | Anthropic | 64.8 | 74 t/s | $25/M |
| 15 | Claude Opus 5.5 (Medium) | Anthropic | 64.8 | 82 t/s | $25/M |