OpenAI launches GPT-5.5, its first fully retrained base model since GPT-4.5, targeting enterprise with agentic coding, computer use, and knowledge work ...

So when it comes to models that the general public can access, GPT-5.5 has retaken the crown for OpenAI, achieving the ...

OpenAI is capping off a busy week of announcements with the release of GPT-5.5, its latest model upgrade for ChatGPT and Codex. The company calls its new model “a new class of i ...

First, we got the new GPT-5.3, an “instant” model optimized for fast, accurate responses. Then, OpenAI released GPT-5.4 two days later. This is a “thinking” model optimized for deep analytical work. I ...

GPT-5.1 speeds up coding with adaptive and no-reasoning modes. New prompt caching cuts API costs for embedded app developers. New tools make AI agents more capable inside modern IDEs. OpenAI is back ...

A breach at data analytics provider Mixpanel Inc. has compromised the account information of some OpenAI Group PBC users. The ChatGPT developer disclosed the incident on Wednesday. Mixpanel’s namesake ...

OpenAI has released GPT-5.5, its most capable and intuitive AI model yet, designed to handle complex, multi-step tasks with minimal human input. The model shows significant improvements in agentic ...

In a pre-release briefing, Open AI president and cofounder Greg Brockman said that GPT-5.5 is “way more intuitive to use,” ...

Elon Musk, under cross-examination in an Oakland federal courtroom, acknowledged that his AI company xAI used OpenAI’s models ...

ChatGPT went from novelty to necessity in less than two years. It is now part of how you work, learn, write, code and search. OpenAI has said the service has roughly 800 million weekly active users, ...