OpenAI is making its most advanced GPT model family, GPT-5.6, publicly available this week after previously restricting or delaying the rollout. Multiple outlets report that OpenAI announced the change via social media, including a Thursday public release date. Earlier, the company held back wider availability after requests from the U.S. government, with reporting citing heightened national security concerns and a government review process.
Several sources describe GPT-5.6 as a set of models offered in tiers, including a flagship option referred to as “Sol,” alongside “Terra” and “Luna,” which are positioned as lower-cost and/or faster options. PYMNTS and The Next Web also note that OpenAI has been expanding preview access globally during the period when full public release was not yet available.
While the coverage varies on the terminology for the delay and the specific phrasing attributed to the U.S. government, the accounts converge on the core sequence: OpenAI unveiled GPT-5.6 at the end of June, then limited public access pending U.S. review, and now opens the model to broader users following approval or a lifted restriction.
