5.4% Leapt to 86.6%: OpenAI Updates a Model That Translates the COBOL Nobody Will Touch into Modern Languages
On October 19, 2026, OpenAI released a model update that raised migration performance for legacy languages such as COBOL. Its COBOL migration evaluation leapt from the previous generation's 5.4% to 86.6%. While it addresses legacy modernization—one of DX's toughest challenges—observers also flag the