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  1. GPT-5.5 vs Claude Opus 4.7: AI Benchmarks Become Enterprise Workbench

    OpenAI released GPT-5.5 on April 23, 2026, one week after Anthropic launched Claude Opus 4.7 on April 16, putting the two most visible frontier AI labs into a direct comparison across benchmarks, coding tools, subscriptions, APIs, and enterprise workflows. Mashable framed the matchup as a split...