← ChatGPT & Codex changelog

ChatGPT — September 3, 2026

The release of GPT-6 Astra marks a significant advancement in AI capabilities. This powerful new model offers improvements in coding, research, computer use, and complex, multi-step work, including the creation of dynamic documents, spreadsheets, and presentations adaptable to changing instructions. Initial access is rolling out to a limited set of organizations, with broader availability expected in the coming days. Enhanced safety monitoring for interpreted instructions, allowing for conversation pauses for user review, is also a part of this update.

Added

  • Introducing GPT-6 Astra

Changed

  • Today we’re introducing GPT-6 Astra, with improvements in coding, research, computer use, and complex, multi-step work. Astra can create documents, spreadsheets, and presentations that follow your templates and instructions, and adapt when you add requirements or change direction.
  • Access is rolling out to a limited set of organizations. Astra is not yet generally available. Broader availability is planned over the coming days.
  • Astra includes additional safety monitoring to look for cases where agents may not have interpreted your instructions correctly. If a potential case is detected, the conversation may be paused or stopped as a precaution for you to review and decide how to proceed.