US restores Mythos 5 for critical-infrastructure defenders; Fable 5 set to return, California strikes half-price deal
After three weeks of negotiations, the Commerce Department granted restored access to Anthropic's Claude Mythos 5, which had been blocked since June 12 over a jailbreak vulnerability concern, clearing it specifically for critical-infrastructure defenders and a wider set of US institutions following a cybersecurity review. Talks remain ongoing to expand access to the company's flagship Fable 5 model — released June 9 and reportedly outperforming Claude Opus 4.8, GPT-5.5, and Gemini 3.1 Pro in benchmarks — which sources say the White House could re-enable in early July. In exchange, Anthropic agreed to implement enhanced safety measures on its systems.
Mechanically, this codifies a new 'release gate' for frontier AI: capability disclosure now comes with a who-gets-it-first decision made customer-by-customer with government sign-off. The same staggered approach is being applied to OpenAI's GPT-5.6, signaling Washington's increased vetting of advanced, cyber-capable models.
In parallel, Anthropic — valued near $1 trillion and eyeing an IPO — announced a partnership with California to expand AI use by government workers, providing state agencies including local governments access to Claude at roughly a 50% discount, alongside free workforce training and expert technical assistance. The Department of Motor Vehicles is already using Claude to reduce wait times.
The move drew immediate backlash. On r/ClaudeAI, users decried 'elite favoritism' and government 'playing favorites,' raising First Amendment and restricted-speech concerns and threatening to cancel subscriptions. The deeper worry developers voiced: as both Anthropic and OpenAI normalize approval-gated access, model availability now behaves like infrastructure that can be switched off, pushing teams toward multi-model fallbacks. What to watch: whether Fable 5 actually re-enables on schedule, and how broadly 'critical-infrastructure defenders' is defined.