OpenAI will not release “o3” as a standalone artificial intelligence model, as the ChatGPT maker looks to simplify its products, CEO Sam Altman said on Wednesday.
The Microsoft-backed start-up will release a GPT-5 model as a comprehensive AI system that will incorporate o3 along with other technologies, he said in a post on X.
OpenAI had unveiled o3 and o3 mini models in December 2024.
Its announcement comes at a time when companies in the US are facing greater investor scrutiny over their massive spending on the technology, after Chinese start-up DeepSeek unveiled a low-cost AI model last month.
“We want to do … a much better job simplifying our product offerings. We want AI to ‘just work’ for you; we realise how complicated our model and product offerings have gotten,” Altman said, without sharing any timeline for the release of these products.
OpenAI did not immediately respond to a request for comment.
The generative AI pioneer aims to merge the o-series and GPT-series models in a bid to create AI systems that can utilise all available tools and handle variety of tasks.
Read: Sam Altman fires back at Elon Musk: ‘OpenAI is not for sale’
OpenAI will also release a GPT-4.5 model, internally referred to as “Orion”, as its last “non-chain-of-thought” model — a reasoning process which generates direct answers without clear intermediate steps.
The model often struggles with complex reasoning tasks, particularly in domains such as physics and mathematics. — Jaspreet Singh, (c) 2025 Reuters
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