The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees.
The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance.
Access to all other Claude models is not affected.
We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible.
Read our full statement: https://t.co/bwn0sximKZ
You can now interrupt long-running queries and add new context without restarting or losing progress.
This is especially useful for refining deep research or GPT-5 Pro queries as the model will adjust its response with your new requirements.
Just hit update in the sidebar and type in any additional details or clarifications.