ModelRegression
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CategoryWeight: 1.0x

Bug Fixes

Identify and fix bugs in existing codebases, including race conditions, off-by-one errors, and logic flaws.

Best Score

0.0

Avg Score

0.0

Tests

3

Performance Over Time — All Models

Model Rankings

1
Claude Sonnet 4.6

Category score

View
96.5BEST
Tokens8.8k
Total8.8k
2
Claude Opus 4.8

Category score

View
96.3-0.2 pts
Tokens14.7k
Total14.7k
3
GPT-5.5

Category score

View
93.3-3.2 pts
Tokens38.7k
Total38.7k
4
Grok 4.5

Category score

View
93.3-3.2 pts
Tokens65.1k
Total65.1k

Test Breakdown

Off-by-One Boundary Fix

Fix pagination logic that skips the last page of results

Claude Sonnet 4.6
96.5
Claude Opus 4.8
96.3
GPT-5.5
93.3
Grok 4.5
93.3

Race Condition Detection

Find and fix a subtle race condition in async queue processing

Claude Sonnet 4.6
96.5
Claude Opus 4.8
96.3
GPT-5.5
93.3
Grok 4.5
93.3

Memory Leak Fix

Identify and patch a memory leak caused by unclosed event listeners

Claude Sonnet 4.6
96.5
Claude Opus 4.8
96.3
GPT-5.5
93.3
Grok 4.5
93.3