CL4SE - Code Generation: leaderboard

Metric: Pass@1 (%) on the 636 hardest CL4SE LeetCode problems (the 30 percent that Qwen3-32B solved least often), with model-generated and manually corrected test cases; zero-shot; temperature 0; CL4SE (context learning for software engineering); higher is better. Source: arxiv.org. Saturation forecast: Around January 2027. 5 models tracked.

Top models

#ModelScoreOverall rank
1Qwen 3 Max78.46#201
2GPT-OSS-120B61.01#330
3Claude 3.5 Haiku (20241022)50.16#574

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #8 Claude Fable 5.1.

Interactive version: theaggregate.ai/benchmark?slug=cl4se-code-generation · How It Works · Data refreshed daily, snapshot 2026-10-11.