MemPalace/mempalace

★60,509PythonMIT⑂ 7,661Issue 365Updated Nov 11, 2026

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The best-benchmarked open-source AI memory system. And it's free.

Local-first AI memory with verbatim storage and no API calls — MemPalace stores conversation history as verbatim text, not summaries, and retrieves it via semantic search scoped into wings, rooms, and drawers rather than a flat corpus. It runs locally with a pluggable backend (ChromaDB by default) and reports 96.6% R@5 on LongMemEval, useful for Claude Code users needing session retention beyond 30 days.

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Created Apr 5, 2026 · First on trending Oct 31, 2026

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