Dream: Background Memory Consolidation For AI Agents

Mem0’s Dream feature, available to Pro and Enterprise users, performs background maintenance on long-running agent memories to reduce duplication, manage outdated facts, and create cautious higher-level summaries without deleting historical data. Inspired by how sleep organizes human memories, it addresses limitations of fast, conversation-level memory writes that can leave similar facts duplicated, conflicting information active, and related observations fragmented across a project. Dream merges older memories when newer ones fully contain their information, marks replaced facts as superseded while retaining them for historical search, and synthesizes supported patterns from multiple related memories into new summary memories. Its decisions use strict rules, preserve links to source or replacement memories, skip immutable or excluded records, and are visible in the dashboard. The feature runs separately from request processing on a weekly schedule, so add and search latency are unchanged, while SDK options allow users to search only current facts or retrieve merged records.

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