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Last Week in AI

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Last Week in AI

Last Week in AI · Apr 23, 2026

#241 - Opus 4.7, Muse Spark, GPT-5.4-Cyber, HY-World 2.0

Claude Opus 4.7 Release and Capabilities Meta Muse Spark Model Development OpenAI GPT-5.4-Cyber Cybersecurity Variant AI Model Evaluation and Benchmarking AI Safety and Alignment Research