Sam Altman hints at major OpenAI feature drop, teases o3 and o4-mini models ahead of GPT5 roll out

OpenAI CEO Sam Altman has set the tech world abuzz with a series of revealing posts on his social media platform X, hinting at significant upcoming developments in the company’s AI roadmap. Contrary to previous expectations, the company now plans to roll out models codenamed “o3” and “o4-mini” in the coming weeks, pushing the highly anticipated GPT-5 launch to later this year. “Change of plans: we are going to release o3 and o4-mini after all, probably in a couple of weeks, and then do GPT-5 in a few months,” Altman posted. “There are a bunch of reasons for this, but the most exciting one is that we are going to be able to make GPT-5 much better than we originally thought.” He acknowledged that integrating all components into GPT-5 had proven more complex than anticipated, noting that OpenAI is also working to ensure it has the necessary infrastructure to handle what he believes will be an “unprecedented demand”.