OpenAI CEO Sam Altman detailed plans for the GPT-4.5 and GPT-5 AI models in a roadmap published on X on Wednesday.
In the post, Altman also acknowledged that OpenAI’s product line has become more complex and said the company wants to do a “much better job” of simplifying its offerings. “We hate the model picker as much as you do and want to get back to the magic of unified intelligence,” Altman said.
The company plans to release GPT-4.5, which he says is internally called Orion, and will be “the last OpenAI model without a chain of thought.” Last year, The Verge reported some details about Orion.
After GPT 4.5, “the main goal for us is to unify the o-series and GPT-series models by creating systems that can use all of our tools, know when to think long and when not to, and generally be useful for a very wide range of tasks,” Altman says.
Using both ChatGPT and OpenAI’s API, the company plans to “release GPT-5 as a system that integrates many of our technologies, including o3,” Altman says, adding that “we will no longer ship o3 as a standalone model.” OpenAI first introduced the o3 in December and launched the o3-mini in January.
