US government vets OpenAI Sol release

The release of Sol under government oversight ends the era of permissionless frontier AI development. While OpenAI frames this 30-day pre-release vetting as temporary, it sets a precedent that could permanently slow public access to cutting-edge models.

• –**Restricted Access:** The model family (including Sol, Terra, and Luna) is currently completely unavailable to the general public or through ChatGPT, accessible only to individually vetted partners.
• –**Vetting Framework:** The 30-day review period follows a Trump administration executive order aimed at identifying national security risks in "covered frontier models" prior to public release.
• –**Agentic Capabilities:** Sol is OpenAI's most powerful model to date, boasting major upgrades in complex reasoning and autonomous agentic workflows for coding, biology, and cybersecurity.
• –**The New Lineup:** Alongside Sol, OpenAI introduced Terra (a balanced everyday model matching GPT-5.5) and Luna (a fast, cheap model), all wrapped in an upgraded safety stack to prevent cyber risks.