Checkmate: OpenAI's o3 swept Musk's Grok 4 in an AI chess showdown.

The AI chess tournament between OpenAI’s o3 model and xAI's Grok 4 invited plenty of speculation as a kind of proxy battle between the two companies and their respective CEOs. Any comparison to the ...

OpenAI’s o3 has defeated xAI’s Grok in a chess match that took place on Google’s Kaggle platform. But what does it prove?

Following this post’s publication, OpenAI co-founder and CEO Sam Altman announced the company would restore access to GPT-4o and other old m ...

One of the few things many disliked about ChatGPT was the confusing number of models. OpenAI claimed GPT-5 would fix this, ...

ChatGPT-5 is getting improved personality after OpenAI received a slate of criticism from users saying that GPT-5 responses ...

After a rocky GPT-5 launch, GPT-4o is officially back for paying ChatGPT subscribers. OpenAI CEO Sam Altman also promised ...

Some charts featured in its OpenAI's GPT-5 livestream on Thursday had several mistakes, which CEO Sam Altman called a "mega ...

OpenAI’s GPT-5 has arrived, delivering faster, smarter, and more reliable AI performance. We review its new model lineup, ...

All ChatGPT users -- yes, even free -- can access GPT-5 in ChatGPT. For a roundup of what to expect, keep reading below.

OpenAI today introduced GPT-5, which the company says brings a "significant leap" in intelligence and fewer hallucinations.