OpenAI has announced a new family of artificial intelligence models, the GPT-5.6 series, comprising three versions: Sol, Terra, and Luna. However, access to these models is currently restricted to a select group of trusted partners and organizations, following a request from the US government to test the technology itself. The company has not hidden its displeasure.
The three models Sol, Terra, and Luna offer differentiated capabilities
The flagship model, Sol, is designed for deep reasoning and complex agentic tasks. According to OpenAI, Sol matches the performance of Anthropic's Mythos model in cybersecurity while using only one-third of the output tokens. Terra is intended for everyday work, while Luna is the smallest, fastest, and cheapest of the three. All models boast improvements in affordability, safety, agentic capabilities, coding, biology, and cybersecurity.
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OpenAI's critical stance on early government access
In the official announcement, OpenAI stated: "We don't believe this kind of government access process should become the long-term default." The company explained that restrictions keep the best tools away from users, developers, enterprises, and global partners who need them. OpenAI complied with the request but hopes it does not become a standard. Current restrictions include seemingly unnecessary blocks, due to ongoing safety testing.
In-depth safety testing before public release
The GPT-5.6 models set new standards for protection against jailbreak attempts and adversarial pressure. However, the US government intends to conduct its own independent evaluations. OpenAI expects a public release "in the coming weeks" once testing is complete. Meanwhile, the user community shows resignation: one Reddit user commented that "the days of the public getting access to these frontier models is gone." The debate on equitable AI access intensifies, highlighting the need for clear regulation, as outlined in the EU AI Act for developers.
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For more on regulatory implications, see the article on the EU AI Act for Developers. For broader context on AI evolution, refer to the Wikipedia page on OpenAI.
