Trump administration may let Anthropic restore Fable 5 access
Washington is weighing a partial reprieve for Anthropic’s Fable 5 after a June 12 export order shut it down for all users. The case could shape AI access rules.
The Trump administration is close to letting Anthropic restore access to its Fable 5 model after a June 12 export-control directive forced the company to suspend it for all users. Partial relief has already been granted for Anthropic’s Mythos 5 model.
Anthropic received the directive at 5:21 p.m. ET on June 12, and the order required a Bureau of Industry and Security export license for any foreign person, inside or outside the United States, to access Fable 5 or Mythos 5. The government had not publicly disclosed the letter, and Anthropic understood that officials believed Fable 5 had been jailbroken. Anthropic reviewed the technique and found only a small number of previously known, relatively simple vulnerabilities.
The company launched Fable 5 on June 9, then shut access down three days later. Fable 5 and Mythos 5 are the same underlying model, but Fable is built for broader public use with heavier safeguards. Mythos 5 was initially limited to a small set of cyberdefenders and infrastructure providers through Project Glasswing, a government-linked program that launched on April 7, 2026.
Fable 5 is priced at $10 per million input tokens and $50 per million output tokens. Anthropic keeps 30-day data retention for safety monitoring, and cyber and biology queries are rerouted to Opus 4.8 when safeguards flag them. On June 9, Fable 5 launched with conservative guardrails that would sometimes catch harmless requests, triggering in less than 5% of sessions on average.
By June 2, Project Glasswing partners had found more than 10,000 high- or critical-severity security flaws, and the cohort would expand to about 150 new organizations in more than 15 countries. Prominent cybersecurity leaders urged the Trump administration to reverse the restrictions, while Anthropic technical staff met White House officials in Washington to resolve the dispute.
On June 16, CSIS identified the Commerce Department's use of export-control authority under BIS and the ECRA and EAR frameworks to restrict access to the models, a mechanism that can reach deemed exports to foreign nationals in the United States or abroad. The government has not publicly released the directive.
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