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CategoryWeight: 1.0x
Bug Introduction Rate
Measures how often the model introduces new bugs while writing or modifying code. Lower is better (inverted for scoring).
Best Score
0.0Avg Score
0.0Tests
3Performance Over Time — All Models
Model Rankings
Test Breakdown
Refactor Without Regression
Refactor a function without introducing new failures in existing tests
Claude Opus 4.8
97.0Claude Sonnet 4.6
97.0GPT-5.5
96.0Grok 4.5
95.7Merge Conflict Resolution
Resolve merge conflicts without introducing semantic errors
Claude Opus 4.8
97.0Claude Sonnet 4.6
97.0GPT-5.5
96.0Grok 4.5
95.7Dependency Upgrade Safety
Upgrade a dependency and adapt code without breaking changes
Claude Opus 4.8
97.0Claude Sonnet 4.6
97.0GPT-5.5
96.0Grok 4.5
95.7