ChatGPT adds interactive charts, table of contents, and full-screen writing

OpenAI’s June 8, 2026 ChatGPT release notes introduced several ChatGPT app experience updates. Interactive charts are now available on web, iOS, and Android. ChatGPT can turn some answers into bar, line, pie, and scatter charts when a visual comparison helps users understand trends. On web, longer conversations can now include a table of contents, making it easier to scan sections and jump to the relevant part of a chat. OpenAI also expanded full-screen writing blocks on web for longer-form work such as essays, PRDs, reports, blog posts, notes, and other documents. The update includes a focused full-screen editor, Library saving, wider document layout, document table of contents, download support, undo and redo fixes, improved save behavior, and clearer loading states. The same release also mentions fixes for editing messages with attachments on iOS and a clearer edit-message flow on Android.