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OSS2026-08-10 · source-backed
claude-mem at 90,282, mem0 at 62,934, MemPalace at 58,269. All three attack the same failure, session boundaries wipe everything the agent learned, with different persistence models, and there's no interchange format between them. Memory is currently a lock-in decision, not a swappable component. Pick knowing that.
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MemPalace (57,821 stars, v3.6.0) reports 96.6% raw recall@5 on LongMemEval with no LLM required, 98.4% with hybrid v4 on a held-out 450 questions, LoCoMo R@10 rising 60.3% → 88.9%, ConvoMem 92.9%, MemBench 80.3%, while explicitly refusing head-to-head comparison against Mem0,...
MemPalace/mempalace (57,888 stars) stores conversation history as verbatim text and retrieves with semantic search, explicitly refusing to summarize, extract, or paraphrase. The index is structured into wings (people/projects), rooms (topics), and drawers (original content) so...
Created by Milla Jovovich and developer Ben Sigman using Claude Code, the MIT-licensed system uses "palace architecture" with 30x lossless compression and runs entirely offline via MCP. 50.5K stars in under a month. The celebrity angle is noise. The benchmark claim (96.6% raw,...
Anthropic invented a file convention. It's now shipping GA inside a competitor's product. Nobody wrote a spec, nobody held a standards meeting, it just happened. On July 29, GitHub made agent skills and MCP server support generally available in Copilot code review for all Pro,...
claude-mem hit 80,189 stars at v12.6.4, with 1,840 commits and 109 contributors. It hooks five agent lifecycle events to capture observations, compresses them through Claude's agent SDK into SQLite, and reinjects relevant context on new sessions. No manual tagging. One npx com...
Persistent memory compression for Claude Code via ChromaDB vector-backed hybrid search. Ships as MCP server with web viewer. Progressive disclosure layers context retrieval. The local-first answer to Claude Import Memory. GitHub
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