SAN FRANCISCO, June 27 — OpenAI has unveiled a preview of GPT-5.6 Sol, a new artificial intelligence model the company describes as its most capable system to date. The announcement arrives amid ongoing debate between governments and technology companies over how powerful AI systems should be developed and released. According to a blog post published by OpenAI, GPT-5.6 Sol has been designed to perform better in areas including computer programming, scientific research, cybersecurity and long-term problem-solving.
The company says the model can handle more complex tasks and provide more reliable responses than earlier versions. The new system is part of a broader GPT-5.6 family of models; OpenAI has also introduced two additional versions called Terra and Luna, intended for different levels of performance and cost.
The technical reality under the hood is worth a closer look. GPT-5.6 Sol is built for complex, long-running tasks. It features “max” reasoning for deeper analysis and an “ultra” mode that uses multiple sub-agents.
The model sets a new coding benchmark on Terminal-Bench 2.1, and shows advances in biology and genomics research. In cybersecurity, it is OpenAI’s most capable model for extended tasks like vulnerability detection and exploitation.
The detail that matters, as ever, is that this model was powerful enough to require a briefing to the US government before its public release. According to The Washington Post, the US federal government will now vet companies seeking access to OpenAI’s latest model, marking a significant expansion of regulation in the AI sector. OpenAI said in its Friday blog post that access approvals will initially be managed by the government as longer-term rules are developed in coordination with the administration.
The move follows a recent decision to block rival Anthropic from offering its most advanced models to non-US users. These actions signal a major policy shift under President Donald Trump’s administration. One wry observation: the industry that spent years telling governments not to worry about AI safety is now handing over the keys to the same governments before shipping a new model.
The shift from a hands-off approach to tighter AI controls has been rapid. Under the Trump administration, the federal government is now effectively acting as a gatekeeper for access to frontier AI systems.
What to watch next: how the government manages the approval process for companies seeking access to GPT-5.6 Sol, and whether the longer-term rules being developed in coordination with the administration will apply equally to all players in the AI sector. The Terra and Luna variants, meanwhile, may offer a path for organisations that don’t need — or can’t get approval for — the full Sol system.
For now, the core story is straightforward: OpenAI has built a model so capable that the US government wanted a briefing before the public got to see it. That is a new precedent, and it is unlikely to be the last.
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