OpenAI launches GPT-5.6 but limits access at U.S. request

OpenAI unveiled GPT-5.6 on Friday in three tiers — Sol, Terra, and Luna — but is restricting initial access to government-approved partners.finance.yahoo+1
The rollout follows a Trump executive order creating a voluntary framework for AI developers to share frontier models with Washington before public release.finance.yahoo
OpenAI called the restriction a "short-term step," saying broader availability through ChatGPT and its API is expected within weeks.qz

OpenAI on Friday unveiled GPT-5.6, its next-generation model family organized into three capability tiers — Sol, Terra, and Luna — but said it is limiting initial access to a small group of vetted partners at the request of the U.S. government.qz+1

The release marks the first time OpenAI has adopted a durable naming architecture that separates model generation from capability level. Sol is the flagship, Terra occupies a mid-tier for high-volume work, and Luna is designed for fast, low-cost use cases. Pricing per million tokens is set at $5 input and $30 output for Sol, $2.50 and $15 for Terra, and $1 and $6 for Luna — placing Sol at roughly half the cost of Anthropic's Claude Fable 5, which runs $10 input and $50 output.cnbc+2

A Staggered Rollout Under Federal Oversight

Rather than a broad public launch, OpenAI said it presented the models' capabilities to the government beforehand and agreed to a phased rollout. President Trump signed an executive order earlier this month establishing a voluntary framework for AI developers to offer frontier models to Washington for up to 30 days before wider release.finance.yahoo

"We are taking this short-term step because we believe it is the strongest path to broader availability in the coming weeks, while we work with the Administration to develop the cyber Executive Order framework and a repeatable process for future model releases," OpenAI said in a blog post.finance.yahoo

Access is being extended to approximately 20 partners, with Amazon Amazon.com, Inc. Web Services' Bedrock platform cited as one deployment path. CEO Sam Altman told staff that the government would be "approving access customer by customer" during a preview period, according to a report from The Information cited by TechCrunch. OpenAI expressed concern that such a process could restrict access for developers, businesses, and international partners.techcrunch+2

Capabilities and Safety

Sol introduces new reasoning modes, including a "max" effort for deep reasoning and an "ultra" mode that leverages subagents to accelerate complex tasks. OpenAI also plans to deploy Sol on Cerebras infrastructure in July for high-speed inference.reddit

On cybersecurity, OpenAI described Sol as more useful for detecting and patching software flaws than for executing end-to-end attacks, and said none of the three models cross its internal "critical" cybersecurity risk threshold. The company said it dedicated approximately 700,000 GPU hours to automated red-teaming and worked with third-party testers.qz

OpenAI cautioned that government-gated access "should not become a permanent standard" and said it would continue testing as it prepares for wider availability through ChatGPT, Codex, and the API in the coming weeks.finance.yahoo

Sources (51)