# Anthropic insists it's not pushing open weight AI ban, but... > Source: > Published: 2026-07-28 13:23:12+00:00 [Anthropic](/tag/anthropic/) Anthropic does not support a ban on open-weight AI models. But CEO Dario Amodei said his concern about abuse of open-weight models is why the AI lab is not joining NVIDIA’s Open Secure AI Alliance. In a [ letter](https://www.anthropic.com/news/position-open-weights-models?ref=thestack.technology) shared Monday, Amodei said Anthropic had never advocated for a ban, such as the one [, but said open models should go through the same mandatory testing as closed models.](https://www.thestack.technology/concerns-grow-that-the-us-might-actually-ban-open-ai-as-demand-for-kimi3-overwhelms-moonshot/) __discussed by the US government__## Get the full story: Subscribe for free Join peers managing over $100 billion in annual IT spend and subscribe to unlock full access to The Stack’s analysis and events. [Subscribe now](https://www.thestack.technology/membership/) Already a member? [Sign in](https://www.thestack.technology/signin/)