OpenAI signed Nvidia's open weights letter, which doubled signers overnight. Amazon and Anthropic stayed out. 5 actions leaders should take today and why it matters.

Nvidia CEO Jensen Huang posted on X for the first time, sharing an open letter advocating for open AI models and US AI leadership.

Nvidia CEO Jensen Huang advocated for open-weight AI models in his first X post, with implications for GPU demand and crypto AI infrastructure

Letter explaining support comes amid rift over AI development philosophies and governance

Can you guess who didn't sign on to the group letter?