Anthropic’s AI Powerhouse, Claude Fable 5, Goes Global Post U.S. Export Ban Lift
Anthropic’s most potent publicly available AI model, Claude Fable 5, is back online for users worldwide after a dramatic 19-day shutdown. The saga is reshaping how governments and AI companies collaborate.
On June 30, 2026, the U.S. Department of Commerce lifted the export controls it had imposed on Fable 5 and its more restricted sibling, Mythos 5, on June 12. Commerce Secretary Howard Lutnick confirmed his agency had worked closely with Anthropic to review and approve the models before the order was withdrawn.
Access was fully restored globally on July 1, 2026, across various platforms including Claude.ai, the Claude Platform, Claude Code, and Claude Cowork. Re-enablement on Amazon Web Services, Google Cloud, and Microsoft Foundry followed as quickly as possible.
The original shutdown was instigated by Amazon researchers who discovered a jailbreak technique allowing the model to identify software vulnerabilities. This finding was reportedly flagged to the White House by Amazon CEO Andy Jassy. Given just 90 minutes to comply with the export control directive, Anthropic had no choice but to take both models offline entirely. In response, the company developed a new safety classifier that blocks the specific jailbreak technique in over 99% of attempts.
Fable 5 — Anthropic’s first Mythos-class model released to the general public — excels in software engineering, scientific research, vision tasks, and autonomous operation over extended periods. It outperforms the company’s previous Opus models on complex, multi-day projects. To ease users back in after the disruption, Anthropic is offering Pro, Max, Team, and select Enterprise subscribers access to Fable 5 at no extra cost for up to 50% of their weekly usage limit through July 7, after which usage will be billed via credits.
Sources: VentureBeat | CNBC