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Large Language ModelsHacker NewsPublished: Apr 25, 2026, 10:00 JST

OpenAI's GPT 5.5 tops error-detection benchmark, beating previous AI proofreading records

OpenAI's GPT 5.5 tops error-detection benchmark, beating previous AI proofreading records

OpenAI released GPT 5.5, which achieved the highest score ever recorded on Errata-Bench—a standardized test that measures how well AI systems catch grammar, style, and factual errors in written text.

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