← ChatGPT & Codex changelog

ChatGPT — September 9, 2026

This release introduces Deep Research capabilities to ChatGPT Work and Codex, enabling users to conduct complex research across various sources and generate editable documents with citations. New Library sharing features allow for easy file and folder collaboration with customizable access permissions and shared ownership rules. Additionally, ChatGPT Voice receives significant upgrades, including access to GPT-5.6 or GPT-6 Astra for advanced reasoning, simplified daily usage limits across plans, and the deprecation of old intelligence levels, providing a more powerful and streamlined experience for all users.

Added

  • What’s new

Changed

  • Updated models and usage limits in ChatGPT Voice
  • ChatGPT Voice can now use GPT-5.6 or GPT-6 Astra when it needs to search or reason through harder questions. Choose your model and reasoning effort using the same controls as text chat. Available models and their usage limits depend on your plan.
  • We’re also simplifying GPT-Live daily usage limits:
  • Go: Up to 3 hours with GPT-Live-1 mini, replacing GPT-Live-1 access.
  • Plus: Up to 3 hours with GPT-Live-1.
  • Pro ($100/month): Up to 15 hours with GPT-Live-1.
  • Pro ($200/month): Unlimited GPT-Live-1 usage.
  • Plus and Pro no longer switch to GPT-Live mini after reaching a Voice limit.
  • With these updates, the separate Instant/Medium/High Voice intelligence levels are deprecated.
  • Learn more: https://help.openai.com/en/articles/20001274-chatgpt-voice
  • Share files and folders from your Library
  • Library sharing lets you share files and folders in ChatGPT, choose who can access them, and work with shared content directly in your conversations.
  • Share with specific people. Invite recipients and assign Viewer or Editor access.
  • Share across your workspace. Make content available to everyone in your workspace.
  • Manage access. Review who has access, change permissions, or remove access from the sharing dialog.
  • Find and use shared content. Access items in Shared with me and use shared files in conversations with ChatGPT.
  • Shared folders and ownership
  • Files uploaded to a shared folder belong to the folder’s owner. The person who uploaded each file is still recorded.
  • If you upload a file to someone else’s shared folder and they later remove your folder access, the file stays in their folder and you lose access to it.
  • Deep Research in ChatGPT Work and Codex
  • Deep research is now available in ChatGPT Work and Codex. Research complex questions across the web, your files, and supported connected apps, then turn the findings into an editable document with citations. You can steer the research as it runs and request a document, presentation, spreadsheet, or Site, depending on available tools. To start, type @Deep Research in Work or explicitly ask for deep research. Available to Plus, Pro, Business, Enterprise, and Edu users with Work access on web, desktop, iOS, and Android. It uses your existing Work/Codex allowance or credits; deep research limits in Chat are unchanged. Learn more.
ChatGPT — September 9, 2026 — Release Notes