Overview
- OpenAI disclosed Friday that, at the U.S. government's request, it began a limited, U.S.-only preview of its GPT‑5.6 series and shared the names of preview partners with authorities.
- The GPT‑5.6 family includes Sol, a flagship model tuned for coding, biology, and cybersecurity tasks, plus Terra and Luna that trade capability for lower cost.
- Anthropic's Fable 5 and Mythos 5 remain disabled worldwide after a Commerce Department export directive ordered the company to block foreign‑person access, and that directive faces at least one legal challenge.
- Officials say the interventions respond to new models' ability to find or reason about software vulnerabilities, which agencies see as a national security and cybersecurity risk.
- Industry voices warn the customer‑by‑customer approvals amount to an improvised licensing regime that could spur firms to favor self‑hosting or foreign and open alternatives and complicate diplomatic access talks with allies.