对于频繁使用 ChatGPT 处理复杂、长期任务的用户，这个“梦境”记忆系统解决了手动重复上下文的痛点，让对话更连贯、更智能，值得立即体验。
OpenAI 为 ChatGPT 引入了一种名为“梦境”的新记忆系统，旨在更主动地跨对话保留用户偏好。与之前被动记录用户明确指令的“便签”式记忆不同，新系统会主动分析历史对话，提取仍有效的上下文，并更新已变化的信息，形成动态的用户画像。用户可查看并修正这一总结。此举显著提升了 ChatGPT 在依赖历史对话的查询中的事实召回能力，使助手能更贴近用户当前状态。
OpenAI gives ChatGPT a new dreaming memory system …
OpenAI gives ChatGPT a new dreaming memory system to retain preferences across conversations.
The big deal is that memory is becoming an active system, not a passive note file.
Earlier memory worked like a sticky note: it mostly remembered things you explicitly told it to remember, and those notes could become stale. If you said you were going to Singapore in July, the system might keep treating that as a current plan even after the trip ended.
Dreaming changes the model from “saving notes” to “maintaining a picture.” It looks across past conversations, extracts what still seems useful, updates what has changed, and makes that summary visible so users can review or correct it.
It measures factual recall: when a user asks something that depends on earlier chats, can ChatGPT correctly bring back the relevant personal context?
A better memory system means the assistant can start closer to where you actually are.