Around the Horn Digest: Everything That Happened in AI Today (Friday, April 24, 2026)

The Neuron
Generative AI Open Source AI AI Research

DeepSeek finally shipped V4 (and open-sourced it) the same morning the State Department accused DeepSeek of IP theft. Google quietly committed up to $40B to Anthropic. Meta locked in millions of Amazon CPUs (not GPUs) for agents. And a senior DeepMind researcher spent the afternoon arguing every frontier lab is hiding architectural rot under "the beautiful norm carpet