Key facts
- Senator Mark Kelly supports the Trump administration's directive for Anthropic to suspend access to its Fable 5 and Mythos 5 AI models.
Senator Mark Kelly supports the Trump administration's directive for Anthropic to suspend access to its Fable 5 and Mythos 5 AI models due to security concerns. Anthropic complied but argued the order was unnecessary and did not adhere to stated principles.

The dispute highlights ongoing tensions between AI developers and government regulators over the pace of AI development and the potential risks associated with advanced models, particularly concerning national security and potential misuse.
Senator Mark Kelly has aligned with the Trump administration's directive for AI firm Anthropic to suspend access to its Fable 5 and Mythos 5 models, citing security concerns. Kelly, a member of the Senate Armed Forces Committee, stated that AI companies must be cautious when releasing new models, and that Anthropic's willingness to work with the government on this issue is a positive sign.
The directive followed reports that a method for bypassing the Fable 5 model, known as 'jailbreaking,' had been discovered. Anthropic complied with the order, disabling access to the specified models, but argued that the directive was unnecessary and did not adhere to the transparent, fair, and technically grounded principles outlined in President Trump's earlier executive order on AI oversight.
This latest clash comes after Defense Secretary Pete Hegseth previously labeled Anthropic as a supply chain risk and prohibited its Claude AI chatbot within the Pentagon. Anthropic has sued the administration over that designation. David Sacks, a former special adviser to Trump on AI, criticized Anthropic's response to the latest directive, suggesting it was at odds with the company's stated commitment to AI safety.