Dreaming: Better memory for a more helpful ChatGPT

OpenAI Blog · 2026-06-04

OpenAI introduces 'Dreaming,' a new background memory synthesis system for ChatGPT that continuously consolidates past conversation history to keep user preferences and context fresh and relevant across future sessions.

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AI Persistent Memory: ChatGPT Dreaming and the Cross-Session Context Race

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Topics: chatgptai-memorypersonalizationopenai

Claims

ChatGPT's new 'Dreaming' system proactively synthesizes conversation history in the background to update its memory of user preferences.
The system is designed to keep remembered context fresh and relevant rather than relying on static snapshots.
Dreaming represents a new architectural approach to long-term memory in conversational AI.