GPT 5.6 Sol Heavily Favors Python in Multi-Language Coding Tasks

jyangballin · x · 2026-08-11

Evaluation reveals a strong Python preference in GPT 5.6 Sol. Although the original ProgramBench dataset consists of 54% Rust, 23% Go, 16% C, and 6% C++, the model rebuilt 165 out of 200 programs in Python, matching the original language only 12% of the time.

Related event: GPT 5.6 Sol Tops ProgramBench, Halving Costs but Showing Python Bias(6 posts)→

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