OpenAI updates its "Dreaming" memory system for ChatGPT.
Instead of saving individual facts as bullet points in a list, ChatGPT now builds a coherent prose profile, split into categories like work, hobbies, or travel. This profile is automatically derived from conversations and updated in the background - no explicit prompt needed.
A "Memory" profile about a user, updated automatically via "Dreaming." | Image: OpenAI
That's supposed to solve the problem of stale memories. When a user comes back from a trip, for example, ChatGPT adjusts the context on its own instead of still giving recommendations for the old location.
For fact retrieval, the success rate climbed from 41.5 percent (2024) to 67.9 percent (2025) to 82.8 percent. The score for factoring in personal preferences jumped from 31.4 to 71.3 percent. The biggest gains came in freshness: that rate rose from 52.2 last year to 75.1 percent now.
