Around the Horn Week in Review: Everything That Happened in AI This Week (May 11-15, 2026)

The Neuron
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Anthropic refused China access to Mythos while the Pentagon used the model family for cyber defense; Cerebras and Cowboy Space pushed AI compute into new territory; Recursive Superintelligence raised $650M; Google confirmed criminal AI-driven zero-day exploitation; plus the week's best new tools.