OpenAI launches a limited preview of GPT-5.6 for a 'small group of trusted partners'

OpenAI launches a limited preview of GPT-5.6 for a'small group of trusted partners' OpenAI launches a limited preview of GPT-5.6 for a'small group of trusted partners' The model's three variants will be available more broadly in the coming weeks. OpenAI has started previewing its GPT 5.6 series, which will be available in three versions, to a limited number of trusted partners. The company says the variant Sol is its strongest model yet, while Terra is for everyday use and has a similar performance to GPT 5.5 despite being twice as cheap. Luna, the last variant, is the company's lowest cost model. OpenAI plans to give them a broad release sometime in the coming weeks.