OpenAI delivered advanced ChatGPT reasoning models this month that are more capable than o1, but they also hallucinate more.

With a ChatGPT Plus, Team or Enterprise account you now have access to 100 messages a week with the ChatGPT-o3 model and a ...

OpenAI has just given ChatGPT a massive boost with new o3 and o4-mini models that are available to use right now for Pro, ...

OpenAI unleashed a flurry of new ChatGPT variants over the week, each featuring interesting new features and very confusing ...

However, according to OpenAI’s internal tests, these new o3 and o4-mini reasoning models also hallucinate significantly more ...

OpenAI says its latest models, o3 and o4-mini, are its most powerful yet. However, research shows the models also hallucinate ...

OpenAI's reasoning AI models are getting better, but their hallucinating isn't, according to benchmark results.

OpenAI's o3 and o4-mini models for ChatGPT have arrived.

OpenAI’s newest reasoning models, o3 and o4‑mini, produce made‑up answers more often than the company’s earlier models, as ...

The ability to recognize cloud types from photographs is a longstanding challenge, even for trained meteorologists. Yet in this study, the latest iteration of ChatGPT (o3-mini) demonstrated ...

Both o3 and o4-mini models, released earlier this week, are only available to paying ChatGPT users at the moment.

OpenAI's o3 and o4-mini models introduce breakthrough image reasoning for enhanced performance in reasoning, visual, and ...