TestExplora (Black Box): leaderboard

Metric: Fail-to-pass rate (%): share of pull requests for which at least one generated test fails before the fix and passes after it; the full set of 2,389 test-generation tasks; Black Box setting, where the model sees only the documentation and signatures of the functions under test; single model call with DocAgent-written documentation as the oracle; mean of three runs; higher is better. Source: arxiv.org. Saturation forecast: Around 2030. 6 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5 Mini5.17#176
2O3 Mini3.93#266
3O4 Mini2.59#172
4Gemini 2.5 Pro2.06#145
5Qwen 3 Coder 30B A3B Instruct2.05#399
6GPT-4o1.47#333

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

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