https://www.bleepingcomputer.com/news/artificial-intelligence/chatgpts-o4-mini-o4-mini-high-and-o3-spotted-ahead-of-release/

OpenAI is preparing to launch as many as three new AI models, possibly called "o4-mini", "o4-mini-high" and "o3".

Right now, ChatGPT has as many as five models, including GPT 4o (the non-reasoning model), GPT 4.5 (another non-reasoning model but with greater creativity), and three reasoning models: o1, o3-mini, and o3-mini-high.