DAILY SITUATION RECAP: Nvidia releases an open letter advocating for open-weights models. The letter urges government to support the open models ecosystem, and is signed by a number of companies including Andreessen Horowitz, Arena, Black Forest Labs, Box, Dell, Hugging Face, IBM, the Linux Foundation, Meta, Microsoft, Mistral, Mozilla, Palantir, Perplexity, Replit, and Y Combinator. Nvidia CEO Jensen Huang joined X just for this post, which is currently at 112k likes and 30.3M views. Huang…