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OpenAI says its latest models improved on two software-engineering evaluations for low-resource languages. On MultiLangBench, GPT-6 Astra averaged 87.4% at maximum reasoning effort across 20 programming languages; on a COBOL migration test, GPT-6.1 Sol scored 86.6% at low reasoning effort. These are OpenAI-designed evaluations, not a guarantee of production migration quality.
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