OpenAI GPT-4.5 is expected to be released as early as next week, with GPT-5 planned for late May.

BlockBeats News, February 21, Microsoft is preparing for OpenAI's latest model, with GPT-4.5 expected to be unveiled as early as next week, and Microsoft expects GPT-5 to be released in late May. The updated GPT-5 will significantly improve the way ChatGPT is used, unify OpenAI's o-series and GPT series models, and reduce user confusion in selecting models. (The Verge)