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

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

A discrepancy between first- and third-party benchmark results for OpenAI's o3 AI model is raising questions about the ...

By OpenAI 's own testing, its newest reasoning models, o3 and o4 -mini, hallucinate significantly higher than o1.

OpenAI ChatGPT o3 and o4-mini models can determine location information by looking at a photo - and yes, it can be fooled.

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

Following the recent launch of a new family of GPT-4.1 models, OpenAI released o3 and o4-mini on Wednesday, the latest ...

OpenAI launches groundbreaking o3 and o4-mini AI models that can manipulate and reason with images, representing a major ...

OpenAI is launching o3 and o4-mini, new AI reasoning models designed to pause and work through questions before responding.

OpenAI’s newest LLM, o3, is facing scrutiny after independent tests found it solved a far fewer number of tough math problems ...

OpenAI released upgraded versions of its advanced reasoning models. These new models, named o3 and o4-mini, offer ...

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