Jensen Huang's Coalition for Open Weights in AI Doubles: Google Joins, Amazon and Anthropic Stay Silent

The letter "Open Weights and American AI Leadership," initiated by Jensen Huang, gathered 50 signatories within 24 hours, doubling from 25. Google joined: Sundar Pichai and Demis Hassabis supported open weights, mentioning Gemma (over 300 million downloads), JAX, Transformers, and AlphaFold. Hassabis also proposed a standardization framework for the responsible deployment of both open and proprietary models. Amazon and Anthropic have not yet signed the letter. Anthropic employee Julian Schrittwieser sarcastically congratulated Huang on believing in open source, expecting the opening of CUDA and Windows. Andrew Ng responded that everyone has the right to keep code closed, but should not hinder others from opening theirs. Bill Gurley noted that Anthropic is competing with the open economy. Andrej Karpathy removed the mention of Anthropic from his X profile, sparking rumors of his departure, but he denied this. Anthropic and OpenAI are quietly lobbying for restrictions on open models in Washington, increasing lobbying spending to record levels. A bill for an emergency shutdown switch for models has been introduced in Congress, which is technically impossible for open weights.