ChatGPT randomly switches to Danish when generating optimization solver code

caglar_ee · x · 2026-11-14

A user noticed ChatGPT occasionally prints solver-related output in Danish while generating optimization solver code, e.g. 'Planlagt projektionsmetoden og afklaret afledningen'. They joke it means serious optimization work is happening — a curious behavior quirk likely from training-data or internal-reasoning language bleed.

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