OpenAI upgrades ChatGPT with persistent memory system across conversations

With the new Dreaming-based architecture, ChatGPT is starting to remember you more reliably across conversations, synthesize what it knows in the background, and give you much more control over what it keeps and what it forgets.

For a product that already sits in the middle of a lot of people's daily workflows, that change is not just a technical tweak – it's a shift in how AI

ChatGPT's new 'dreaming' memory quietly runs in the background, pulling together details from past chats so the assistant can feel more like a long-term collaborator than a blank slate.