Security News OpenAI's GPT-4.1, 4.1 nano, and 4.1 mini models release imminent BleepingComputer Daniel Bender Apr 14, 2025 According to references spotted on OpenAI's website, the Microsoft-backed AI startup is planning to launch five new models this week, including GPT-4.1, 4.1 nano, and 4.1 mini.