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’s o3 and o4-mini models are available now to ChatGPT Plus, Pro, and Team users. Enterprise and education users will ...

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

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

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

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

Hands-on comparison of OpenAI's new o3 and o4 models versus o1-pro, Deep Research, and Claude 3.7. Discover which AI tools ...

OpenAI touts o3 as a smart AI model with the ability to reason (meaning it can recursively check its answers before giving ...

OpenAI is releasing two new AI reasoning models today: o3, which the company calls its “most powerful reasoning model,” and ...

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

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