OpenAI is preparing to launch as many as three new AI models, possibly called "o4-mini", "o4-mini-high" and "o3". Right now, ChatGPT has as many as five models, including GPT 4o (the non-reasoning ...

OpenAI has unveiled three innovative reasoning models—o3, o4 Mini, and ChatGPT-o4 Mini High—marking a significant step forward in artificial intelligence capabilities. These models replace earlier ...

First reported by TechCrunch, OpenAI's system card detailed the PersonQA evaluation results, designed to test for hallucinations. From the results of this evaluation, o3's hallucination rate is 33 ...

UPDATE: Apr. 16, 2025, 2:18 PM EDT Now that the OpenAI livestream has ended, this article has been updated with the latest information about the o3 and o4-mini launch. OpenAI's o3 and o4-mini models ...

On Wednesday, OpenAI launched its latest reasoning models, o3 and o4-mini. As with its other o-series models, OpenAI's o3 and o4-mini think for a longer period of time before responding in order to ...

OpenAI today launched o3 and o4-mini, the latest additions to its lineup of reasoning-optimized language models. The product milestone came against the backdrop of reports that the company may acquire ...

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OpenAI has launched its new flagship reasoning models, o3 and o4-mini, which achieve state-of-the-art performance and support full tool access. As expected, OpenAI today announced o3 and o4-mini, its ...

A mere two days after announcing GPT-4.1, OpenAI is releasing not one but two new models. The company today announced the public availability of o3 and o4-mini. Of the former, OpenAI says o3 is its ...

OpenAI has launched three new reasoning models - o3, o4-mini, and o4-mini-high for Plus and Pro subscribers, but as it turns out, these models do not offer 'unlimited' usage. OpenAI is working on yet ...