PANews reported on April 13 that according to Jinshi, OpenAI stated on its website that from April 30, GPT-4 will be "completely replaced" by GPT-4o, but GPT-4 will continue to be available through the API.

OpenAI said, "In face-to-face evaluations, it (4o) continues to outperform GPT-4 in writing, coding, STEM, etc." According to the US media The Verge on the 10th, OpenAI will unveil a series of new AI models next week, including GPT-4.1, which will be an improved version of the 4o multimodal model. OpenAI will also launch smaller GPT-4.1 mini and nano versions, as well as the o3 "reasoning" model and a new reasoning model called o4-mini.