Anthropic's Fable 5 Is Coming Back as the US Lifts Its Ban

Anthropic just got its most powerful model back. The US Commerce Department has lifted the export controls that forced Anthropic to switch off Claude Fable 5 and Mythos 5 in mid-June, and the company is restoring access, with Fable 5 available again from tomorrow. It ends a three-week saga that showed how tangled AI has become with national security.

The story started with a launch and a shutdown. Anthropic released Fable 5 on June 9 as the first publicly available model in its top Mythos-class tier, then just days later disabled both Fable 5 and Mythos 5 to comply with a government directive citing national security. Because access could not be limited by nationality in real time, the models went dark for everyone, not just foreign users. A flagship launch became a blackout.

The government resolution restores full access. Commerce Secretary Howard Lutnick said officials worked with Anthropic over two weeks to analyze and approve Fable 5, framing it as ensuring alignment across the US government and strengthening American leadership in AI. Mythos 5 had already been cleared for a select group of companies and federal agencies, and now the broader restrictions are being lifted for full global access.

The bigger point is that AI is now treated like strategic technology. The episode shows governments will step in to control who can use the most advanced models, the same way they regulate advanced chips and weapons, and that a company can be ordered to switch its product on or off. For the AI labs, capability is no longer the only constraint, policy is too. The state now has a hand on the switch.

The honest caveat is that this cuts both ways for Anthropic. Getting Fable 5 back with a public endorsement from Washington is a win and positions the company as aligned with US interests, which can help with government contracts. But the whole affair also showed how exposed even a leading lab is to sudden policy shifts, and users who lost access for weeks may think twice about depending on a model that can be turned off. Trust takes time to rebuild.

So Anthropic's top model is switching back on, closing a strange chapter where the US government pulled and then restored a commercial AI product. Fable 5 back tomorrow, Mythos 5 cleared, and a clear signal that AI now sits inside national-security policy. The capability returns, the precedent remains. Watch how Anthropic reassures users and how often governments use this power.