Around the Horn Digest: Everything That Happened in AI Today (Wednesday, April 15, 2026)
The Neuron
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Generative AI
OpenAI's $852B valuation faces backer scrutiny while VCs offer Anthropic up to $800B, Allbirds pivoted from sneakers to AI compute and the stock popped 600%, Apple sent Siri devs back to coding bootcamp, Tubi became the first streamer with a native ChatGPT app, Europe got iced out of Anthropic's Mythos preview, and a federal court ruled your AI chats have no attorney-client privilege.