Around the Horn Digest: Everything That Happened in AI Today (Monday, May 4, 2026)
The Neuron
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Generative AI
Open Source AI
The White House started considering pre-release vetting of AI models; Anthropic and OpenAI both married private equity on the same day; Anthropic CCO Paul Smith launched a separate $1.5B mid-market spinout; DeepSeek's V4-Pro became the first Chinese model at frontier parity; Mayo Clinic's AI spotted pancreatic cancer up to three years before diagnosis.