OpenAI debuted its most capable model yet under pressure from a mass user exodus tied to the company's controversial Pentagon ...

The latest model from OpenAI comes just days after the company launched GPT-5.3 Instant.

OpenAI is bidding adieu to 4o, a favorite model among many users. Chats with 4o will still be accessible after that date. The company says only 1% of its users still engage with 4o. It's a sad day for ...

GPT-5.4 is another model update focused on usefulness for agentic tasks, particularly knowledge work. OpenAI says this is its ...

To say that the public response to GPT-5 was lukewarm would be a massive understatement. Surprisingly, the technical capabilities of GPT-5 weren't the main cause of the backlash. Rather, many ChatGPT ...

The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some ...

In a matter of hours, developers were using Open AI's new software to design websites, create legal documents, and make games.