MemPalace
Hierarchical cross-session AI memory — viral, controversial, open source
Expert verdict
Skip
1-3The Panel's Take
MemPalace is an open-source persistent memory system for AI agents that organizes memories hierarchically — people and projects become "wings", topics become "rooms" — enabling scoped semantic retrieval rather than flat vector search. It claims 96.6% on LongMemEval and a 170-token overhead per session. MIT licensed, self-hosted. The project went viral almost instantly after actress and director Milla Jovovich pushed it to GitHub, claiming she built it with Claude Code alongside engineer Ben Sigman. The "palace" metaphor maps well to how humans naturally organize associative memory, and the architectural idea of scoped context windows (retrieve only the relevant "room") is legitimately interesting for long-running agent sessions. The controversy: GitHub issue #214 exposed that the headline benchmark measures ChromaDB's default embeddings, not the palace structure itself. The README was updated to walk back the "100% accuracy" claim. A pump-and-dump crypto token ($PALACE) also appeared within 24 hours of the GitHub push. The underlying memory architecture has real merit — the noise-to-signal ratio is just high right now.
Share this verdict
MemPalace verdict: SKIP ⏭️ 1 ship · 3 skips from the expert panel Full review: shiporskip.io/tool/mempalace-milla-jovovich-hierarchical-ai-memory-cross-session-open-source-2026
Weekly AI Tool Verdicts
Get the next verdict in your inbox
7 critics review a new AI tool every day. Weekly digest — free.
Embed this verdict
Tool makers can add a live ShipOrSkip badge to their site. Badge loads track impressions; clicks route back to this review.
<a href="https://shiporskip.io/api/badge-click/mempalace-milla-jovovich-hierarchical-ai-memory-cross-session-open-source-2026" target="_blank" rel="noopener"><img src="https://shiporskip.io/api/badge/mempalace-milla-jovovich-hierarchical-ai-memory-cross-session-open-source-2026" alt="MemPalace Skip verdict on ShipOrSkip" width="360" height="90" /></a>[](https://shiporskip.io/api/badge-click/mempalace-milla-jovovich-hierarchical-ai-memory-cross-session-open-source-2026)<iframe src="https://shiporskip.io/embed/mempalace-milla-jovovich-hierarchical-ai-memory-cross-session-open-source-2026" title="MemPalace ShipOrSkip verdict" width="360" height="260" style="border:0;border-radius:16px;max-width:100%;" loading="lazy"></iframe>The reviews
“The hierarchical memory concept is sound — scoped retrieval beats flat vector search for agents with complex long-term context. But the benchmark controversy (measuring ChromaDB embeddings, not the palace structure) makes it hard to trust the claims right now. Wait for independent replication and a clean README before building on this.”
“Celebrity open-source drop, inflated benchmarks, and a crypto token in under 24 hours — this is the trifecta of GitHub hype. The tech might be fine, but you can't evaluate it through the noise. Issue #214 alone should give any serious developer pause. Let the dust settle.”
“Strip away the celebrity drama and the palace memory metaphor is genuinely compelling. Agents that organize knowledge spatially — with room-level context scoping — are a step toward more human-like associative recall. The 23k star viral moment also signals serious latent demand for better AI memory primitives. Someone will clean this up and it'll matter.”
“The palace metaphor is beautiful UX-conceptually — I love the idea of 'walking' an AI through rooms of context. But the crypto token association makes me not want my name near this project right now. If the tech gets validated independently, I'm interested. For now, too risky.”