Anthropic Customer Sues US Over Block on Fable 5 AI Model Access

What happened

Legion LegalTech filed a federal lawsuit in Washington on June 23 against a Bureau of Industry and Security directive of June 12 that forced Anthropic to disable Fable 5 and Mythos 5 for 'any foreign national'.

Context and impact

The directive came just three days after Fable 5 launched on June 9. It triggered a worldwide outage now in its 11th day. Legion has Canadian developers who lost access — the suit asks the court to vacate the directive and issue an immediate preliminary injunction. The case is the first legal test of Trump's AI export-control policy.

Details

• Plaintiff: Legion LegalTech Corp (litigation-tech)
• Court: U.S. District Court for D.C.
• Relief: vacate + preliminary injunction against the BIS directive
• Directive issued: June 12, 2026
• Models offline for public: 11+ days as of June 23