OpenAI is limiting preview access to its latest GPT models at the request of the US government. The company said it previewed the capabilities of its new series of GPT-5.6 models, which includes Sol, Terra, and Luna, to the US government ahead of Friday's launch. "At their request, we are starting with a limited preview for a small group of trusted partners whose participation has been shared with the government, before releasing more broadly," the company said. OpenAI said they were complying