OpenAI officially announced that GPT-4 will be retired at the end of this month, to be completely replaced by 4o.

BlockBeats News, April 12th, OpenAI announced on its website that starting from April 30th, GPT-4 will be fully replaced by GPT-4o, but GPT-4 will continue to be available through the API. OpenAI stated that "in face-to-face evaluations, it (4o) continues to outperform GPT-4 in writing, coding, STEM, and other areas."

According to the US media The Verge's report 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 introduce smaller versions, GPT-4.1 mini and nano, as well as the o3 "inference" model and a new inference model called o4-mini.