The company had been igniting widespread criticism as seemingly the only leading AI lab not supporting open-weight models. Nvidia CEO Jensen Huang recently published a public letter in support of them, signed by Microsoft, Nvidia, Meta, Palantir, Hugging Face, and others — and in the days since, it’s added OpenAI, Google, Amazon, Meta, SpaceX, Cohere, Mistral, CoreWeave, GitHub, OpenClaw, and Perplexity as signatories. Now Anthropic’s CEO has published his own thoughts on the matter, clarifying, “Anthropic has never advocated for a ban on open-weights models.”