From PC World: OpenAI’s CEO Sam Altman wrote a social media post with an update on the roadmap for ChatGPT. In it, he explained that they’ve halted the launch of its upcoming o3 reasoning model to instead focus more on a streamlined yet monolithic version of GPT-5.
“We want AI to ‘just work’ for you; we realize how complicated our model and product offerings have gotten.
We hate the model picker as much as you do and want to return to magic unified intelligence.
We will next ship GPT-4.5, the model we called Orion internally, as our last non-chain-of-thought model.
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In both ChatGPT and our API, we will release GPT-5 as a system that integrates a lot of our technology, including o3. We will no longer ship o3 as a standalone model.”
In January, OpenAI released a lighter version of o3 called o3-mini, which is particularly well-suited to handling STEM subjects and coding. The idea was to release the broader o3 model soon after that. Instead, the new plan is to next launch GPT-4.5, which will be the company’s last AI model without chain-of-thought thinking.
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