OpenAI announced GPT-5.5, its latest AI model that is better at coding, using computers and pursuing deeper research ...

OpenAI's newest model matches GPT-5.4's speed while outperforming it on nearly every benchmark. It's rolling out to paid ChatGPT users today.

OpenAI on Thursday released GPT-5.5, its newest AI model, which the company calls its “smartest and most intuitive to use ...

OpenAI released GPT-5.5, internally codenamed "Spud," on Thursday, describing it as a faster and more capable model that can ...

OpenAI Releases GPT-5.5, a Fully Retrained Agentic Model That Scores 82.7% on Terminal-Bench 2.0 and 84.9% on GDPval ...