GPT-5 Pro, GPT-5 Thinking, and o3 to analyze my code repository - and found surprising differences in detail, reasoning, and ...

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 ...

Google's AI chess tournament ended Thursday with OpenAI’s o3 model sweeping xAI's Grok in four straight games.

OpenAI’s o3 model emerged victorious in a recent AI chess tournament, defeating xAI’s Grok 4 in the final, intensifying the ...

Elon Musk's Grok 4 was the strongest fighter in the eight-player field until the final. But in the final, it made ...

OpenAI’s new open-weight models are gpt-oss-120b and gpt-oss-20b. The smaller model, gpt-oss-20b, can be run on a consumer laptop or powerful phone.

Openai is making O3 level capabilities open source ahead of the release of GPT-5 in about two days. These open source models ...

The o3 model scored 76% accuracy on ARC-AGI in an evaluation formally coordinated by OpenAI and the author of ARC-AGI, François Chollet, a scientist in Google's artificial intelligence unit.

The o3 model also failed to solve more than 100 visual puzzle tasks, even when OpenAI applied a very large amount of computing power toward the unofficial score, said Mike Knoop, an ARC Challenge ...

Neither o3 nor o3-mini are widely available yet, but safety researchers can sign up for a preview for o3-mini starting today. An o3 preview will arrive sometime after; OpenAI didn’t specify when.

O3-mini is fine-tuned for STEM problems, specifically for programming, math, and science. OpenAI claims the model is largely on par with the o1 family, o1 and o1-mini, in terms of capabilities ...