We’re releasing a research preview of OpenAI GPT‑4. 5, our largest and most knowledgeable model yet.
Introducing GPT-5. 4, OpenAI’s most most capable and efficient frontier model for professional work, with state-of-the-art coding, computer use, tool search, and 1M-token context.
We are replacing the existing GPT-4o-based model for Operator with a version based on OpenAI o3. The API version will remain based on 4o.
Hyatt deploys ChatGPT Enterprise across its global workforce, using GPT-5. 4 and Codex to improve productivity, operations, and guest experiences.
OpenAI previews GPT-5. 6 Sol, a next-generation model with stronger capabilities in coding, science, and cybersecurity, paired with its most advanced safety stack.
We are excited to announce OpenAI’s first international expansion with a new office in London, United Kingdom.