By Mike Scarcella

WASHINGTON, July 6 (Reuters) - A legal technology startup that sued the United States over rules it imposed on access to Anthropic's most advanced AI models has voluntarily dismissed its case after federal officials rescinded its restrictions.

Here are the details:

• Legion LegalTech Corp filed its lawsuit in Washington federal court last month, saying a June 12 order by the U.S. Commerce Department’s Bureau of Industry and ​Security unlawfully required Anthropic to disable its Fable 5 and Mythos 5 ​models for “any foreign national.”

• Anthropic, which was not a party in the lawsuit, turned off access for all ⁠customers the same day to ensure compliance. Last week, Anthropic said the department lifted export controls on its most advanced Fable and Mythos AI models.

• On Friday, San Jose-based Legion, which builds drafting and case-management tools for attorneys, voluntarily ended its lawsuit. The company cited the U.S. move to end curbs targeting Anthropic.

• Arthur Rothrock, Legion’s cofounder and chief executive, in a statement said the company “achieved exactly what we set out to do. The government rescinded its directive, and our access to Anthropic's models has been restored.”

• Legion sued “because a federal agency claimed the power to disable commercial AI models with 90 minutes' notice, no evidence, and no process — cutting off our engineering team and threatening our business — and we were not going to sit back and let that stand,” Rothrock said.

• The lawsuit was dismissed without prejudice, allowing Legion to refile the case in the future. Rothrock said the industry needs “transparency, clear guidelines, and a defined process — not 90-minute ultimatums.”

• The Commerce Department did not immediately respond to a request for comment.

Read more:

US removes curbs on Anthropic's latest Fable and Mythos AI models