Overview
On June 4 2026 OpenAI began rolling out its most capable “dreaming” memory yet — a background process that synthesizes who you are from past chats to optimize for freshness, continuity and relevance, without you ever saying “remember this.” An unofficial bilingual digest of the announcement.
How it works
What “dreaming” is, and how a background process turns scattered conversations into fresh, relevant context.
Evolution
How ChatGPT memory grew — straight from OpenAI's own account.
Core capabilities
OpenAI defines “good memory” as doing three jobs well — each shown here with the example from the article.
How it's evaluated
OpenAI evaluates memory on three axes across three generations (2024 saved memories → 2025 + Dreaming V0 → 2026 Dreaming V3) and reports the lift as charts. The article publishes no citable percentages, so this page invents none — it shows the directional claim. The one concrete figure: serving compute cut ~5× for Free users.
Your controls
What the article says you can do, plus general controls — the official Memory FAQ is the source of truth.
Rollout & tiers
Available to Plus and Pro users in the US on June 4 2026; rolling out to additional countries and to Free and Go users over the coming weeks. A ~5× reduction in compute to serve Free users is what makes that practical, alongside increased memory capacity for Plus and Pro.
Privacy & risks
Extended context — general, well-known considerations for a memory that persists separately from your chats. These are NOT part of OpenAI's announcement; for exact controls and policy, rely on the official Memory FAQ and your local settings.
FAQ
Quick answers about ChatGPT's dreaming memory.