OpenAI said on its website that GPT-4 will be "fully replaced" by GPT-4o from April 30, but GPT-4 will continue to be available through an API. OpenAI said, "In face-to-face evaluations, it (4o) consistently outperforms GPT-4 in writing, coding, STEM, and more." According to the US media The Verge reported on the 10th, OpenAI will unveil a series of new AI models next week, which will include GPT-4.1, which will be an improved version of the 4o Multi-modality model. OpenAI will also launch smaller GPT-4.1 mini and nano versions, as well as the o3 "inference" model and a new inference model called the o4-mini.