In a sudden move, AI research company Anthropic has shut down access to its recently launched Fable 5 and Mythos 5 models. The decision comes after the company received a directive from the US Commerce Department on Friday evening, subjecting these models to export controls that restrict their use outside the United States.
According to an Axios report, the Trump administration is concerned about reports of a jailbreak that allegedly bypasses safeguards meant to block Fable 5 prompts related to cybersecurity, chemistry, and biology. The administration reportedly requested a pause in the release of these models to allow for additional security measures to be implemented.
Anthropic stated in a message posted on Friday night that it is complying with the government’s directive by disabling access to Fable 5 and Mythos 5 for all customers. The company emphasized that this decision was made to ensure compliance, despite its disagreement with the reasoning behind the directive.
In its announcement, Anthropic noted that the government has only provided verbal evidence of a potential narrow jailbreak involving getting Fable 5 to review a specific codebase for software flaws. The company claims that this kind of jailbreak is used to find minor and relatively simple software vulnerabilities, similar to those found in other publicly available models like GPT-5.5.
Anthropic expressed its disagreement with the government’s decision, stating that if the standard applied here were to be applied across the industry, it would essentially halt all new model deployments for frontier model providers. The company apologized to customers for the disruption and promised to release more details about the situation in the next 24 hours.
This development comes after President Trump signed an executive order urging AI model makers to submit to voluntary government security testing earlier this month. The order was initially planned for last month but was postponed due to reported concerns within the administration.
**Export Controls and Security Risks: A Growing Concern for AI Researchers**
The directive from the US Commerce Department has raised questions about the balance between ensuring the security of AI models and restricting their use outside the United States. Anthropic’s decision to comply with the government’s directive highlights the challenges faced by AI researchers in navigating complex regulatory frameworks.
As the development of AI continues to advance at a rapid pace, governments around the world are increasingly taking steps to ensure that these technologies are developed responsibly. The US government’s directive is just one example of this trend, and it remains to be seen how AI researchers will adapt to these new regulations.
**What Does This Mean for the Future of AI Research?**
The shutdown of access to Fable 5 and Mythos 5 models has significant implications for the future of AI research. If the standard applied here were to be applied across the industry, it could essentially halt all new model deployments for frontier model providers. This would have far-reaching consequences for the development of AI technologies and their potential applications.
In conclusion, the directive from the US Commerce Department has raised important questions about the balance between ensuring the security of AI models and restricting their use outside the United States. As the development of AI continues to advance at a rapid pace, it is essential that governments and researchers work together to ensure that these technologies are developed responsibly.
Source: Original article