Overview
- OpenAI began a U.S.-only, limited preview of its GPT-5.6 series after the company briefed the government and agreed to share the identities of approved partners for a staged rollout.
- Anthropic earlier received a Commerce export-control order that forced a global shutdown of Fable 5 and Mythos 5 and has since been allowed to restore Mythos 5 for a vetted set of U.S. organisations while wider access remains restricted.
- U.S. officials say the move responds to demonstrations that cutting-edge models can be 'jailbroken' to identify software vulnerabilities that hostile actors could exploit.
- The interventions have prompted legal and diplomatic pushback, including a lawsuit challenging the export directive and talks with allied governments seeking trusted‑partner access.
- Companies warn the ad-hoc gating disrupts cyber defenders and product rollouts, and both industry and agencies say they are working to turn the president's voluntary review order into a repeatable framework for future releases.