Jensen Huang's First-Ever Tweet Started a Coalition That Doubled From 25 to 50 Signers in Under 24 Hours — With Anthropic and Amazon Still Out

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Huang used his inaugural X post on July 24 to publish 'Open Weights and American AI Leadership,' a three-page letter hosted on Nvidia's own servers and signed by 25 companies including Meta, Microsoft, IBM, Mistral, Mozilla, Hugging Face, a16z, Palantir and the Linux Foundation. Within a day the list hit 50, with OpenAI, Google, AMD, Cisco, Cloudflare, GitHub, Block and Ollama all joining after the fact — leaving Amazon and Anthropic as the only major absences. Forbes' Sandy Carter draws the lesson builders should actually take: 'the window between a position becoming visible and becoming crowded is now measured in hours,' and notes the paradox that Nvidia asks for open weights while keeping CUDA proprietary.