One of the more terribly named models, o4-mini drops the “GPT” element of the naming scheme and awkwardly swaps the 4o around ...

OpenAI's GPT-o3 and o4-mini models hallucinate fake facts in up to 79% of answers, raising major concerns about AI accuracy ...

The New York Times reports that an OpenAI's investigation into its latest GPT o3 and GPT o4-mini large LLMs found they are ...

ChatGPT isn't based on one AI model, but many. As it turns out, OpenAI has a support document listing the times it thinks you ...

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

OpenAI could see which types of developers use rival models such as the Meta Llama variants and Anthropic's Claude, and for what purposes.

OpenAI launched in 2015 as a nonprofit artificial intelligence research lab. Four years later, it created a for-profit arm to ...

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

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

A new study examines how well large reasoning models evaluate AI translation quality and finds that reasoning alone does not ...

OpenAI has quietly released an updated overview of the capabilities and usage limits of its ChatGPT Enterprise models, ...

OpenAI admitted that it can be confusing for users to choose between all the different models, but the company has quietly published a document that makes it easier to understand ChatGPT.