Resolution criteria

This market resolves to YES if Anthropic files a lawsuit, petition for review, or other formal legal challenge in a US federal court or appropriate administrative agency (such as the Department of Commerce's Bureau of Industry and Security) seeking to enjoin, set aside, or otherwise legally contest the US government's export control directive received on June 12, 2026, which ordered the suspension of access to Claude Fable 5 and Mythos 5.

• The legal filing must be formally submitted on or before July 31, 2026, at 11:59 PM ET.

• Public statements, blog posts, press releases, or informal negotiations with government officials do not qualify as a legal challenge.

• If no formal legal action is filed in court or through an official administrative appeal process by the deadline, the market resolves to NO.

• Standard news outlets (e.g., Reuters, Bloomberg, Axios) or public court dockets (e.g., PACER) will be used to verify if a filing has occurred.

Background

On June 12, 2026, the US Department of Commerce sent an unprecedented export control directive to Anthropic, instructing the company to suspend access to its newly released frontier models, Claude Fable 5 and Claude Mythos 5, for all foreign nationals (including Anthropic's own foreign-national employees). Because Anthropic could not instantly verify user citizenship globally, it complied by disabling access to both models for all customers worldwide.

The government's directive reportedly stems from national security concerns over an alleged "jailbreak" vulnerability. In a public statement, Anthropic pushed back on the government's reasoning, calling it a "misunderstanding" and arguing that the flagged vulnerabilities are minor and already present in other publicly available models. This market tracks whether Anthropic will take the unprecedented step of legally challenging the executive branch's export control authority over advanced AI models.