OpenAI is streamlining its AI model lineup, retiring popular models like GPT-4 and GPT-4.5, all in anticipation of the launch ...

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

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

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

Comparing AI reasoning abilities reveals OpenAI's o1 model surpasses DeepSeek's R1 in generating accurate, sentence-level ...

Historically, each new generation of OpenAI's models has delivered incremental improvements in factual accuracy, with ...

The FrontierMath benchmark from Epoch AI tests generative models on difficult math problems. Find out how OpenAI’s o3 and ...

"How about we fix our model naming by this summer and everyone gets a few more months to make fun of us," OpenAI's Sam Altman ...

OpenAI's reasoning models are billed as more ... to "spend more time thinking before they respond," as described in the o1 announcement. Rather than largely relying on stochastic methods to ...

On Wednesday, OpenAI announced the release of two new models—o3 and o4-mini—that combine simulated reasoning capabilities ...

OpenAI introduced two new reasoning models this week: o3 and o4-mini. The company claims that these are its smartest AI ...

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