OpenAI has launched GPT-5.5, its first fully retrained base model since GPT-4.5, targeting enterprise users with advanced autonomy in coding, computer use, and knowledge work. The model delivers ...

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 Group PBC’s large language models available on its cloud platform. The algorithms are accessible through Amazon ...

OpenAI’s new demo shows developers how to build real-time voice agents with handoffs, tools and production-style ...

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 ...

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 ...

In early March, OpenAI unleashed a one-two punch, dropping two major frontier models just days apart. First, we got the new GPT-5.3, an “instant” model optimized for fast, accurate responses. Then, ...

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, ...

OpenAI has won major concessions from its largest shareholder, Microsoft, that will allow it to sell products on AWS, while ...

OpenAI has begun using browser cookies to promote its products and services on third-party websites, marking a significant ...