OpenAI released two powerful reasoning models a few days ago that make ChatGPT even more impressive. These are o3 and o4-mini that you can test right away in ChatGPT. They're much better at reasoning ...

UPDATE: Apr. 16, 2025, 2:18 p.m. 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 ...

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 ...

OpenAI is keeping up its rapid-fire pace of new AI releases. The company introduced the o3 and o4-mini models to its ChatGPT platform in April. At the time, the business promised that a pro model of ...

OpenAI surprised us all with ChatGPT's new image-generation features, which went viral a few weeks ago. However, it's worth remembering that the chatbot doesn't just create images from a text prompt; ...

OpenAI is planning to ship an update to ChatGPT that will turn on the new o3 Pro model, which has more compute to think harder. ChatGPT currently offers o4-mini, o4-mini-high, GPT-4.5, GPT-4.1, ...

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 ...

If you’ve ever opened ChatGPT and felt baffled by the alphabet soup of model names – like GPT-4o, o3, o4-mini – you’re not alone. OpenAI (the company behind ChatGPT) doesn’t exactly make it easy with ...

New usage limits up the amount of messages per week for o3 and o4-mini You get 100 messages a week for o3 and 300 a day for o4-mini You can see the date that your usage limits will reset ChatGPT has ...

ChatGPT's o3 is OpenAI's best model to date because it features reasoning, and it might get even better in the next update. As spotted on X, OpenAI is testing a new "Alpha" variant of the o3 model, ...

A recent study by Palisade Research, which looks into "dangerous AI capabilities", shows that some AI models, including OpenAI’s o3, can ignore direct shutdown commands. OpenAI stated that O3 and ...