Earlier this week, OpenAI announced via release notes that it has updated its most widely used AI model: GPT-5.5 Instant.

ChatGPT just got a quieter but significant upgrade, and most users will feel it before they even notice it. OpenAI rolled out GPT-5.5 Instant on Tuesday as the new default model for all ChatGPT users ...

The White House asked OpenAI to delay the rollout of its GPT-5.6 AI models, two weeks after Anthropic had to take its most ...

OpenAI has given ChatGPT-5.5 an update that makes it easier to talk to, so I tested it out.

OpenAI announced GPT-5.5, its latest AI model that is better at coding, using computers and pursuing deeper research capabilities. The launch comes just weeks after Anthropic unveiled Claude Mythos ...

OpenAI said GPT-5.5-Cyber, a variation of its latest AI model, is rolling out in a limited preview capacity to vetted cybersecurity teams. The model is trained to be more permissive on ...

Executive Order 14409 requires federal cybersecurity reviews before companies can access OpenAI's GPT-5.6, limiting initial ...