Legion LegalTech sues U.S. over Anthropic Fable 5 and Mythos 5 shutdown

- Legion LegalTech is a UK-based company that uses AI to automate contract analysis and legal workflows. - Anthropic is the US AI company behind the Claude large language model. Its "Fable 5" and "Mythos 5" were widely used third-party AI model releases that, according to Legion, were critical infrastructure for its legal AI products. - The US government (likely via export controls or national security actions) ordered the shutdown or restricted access to these models, which Legion argues was unlawful and caused major disruption to its business. - This lawsuit is one of the first instances of a foreign company directly suing the US over AI export controls, testing the limits of US authority over globally deployed AI models and the legal protections available to foreign businesses affected by them.