From what I gather, this is Anthropic-only because of disagreement there. OpenAI is not subject to apply the policy and the US has no power to limit foreign companies like Deepseek and GLM.
> In other words, the Trump administration appears to be pressuring OpenAI to do what Anthropic is already voluntarily doing: keeping its most powerful AI models under wraps.
What have you gathered? This very article is about the US government asking OpenAI to limit the release of models due to infosec / bioweapon concerns.