A-MEM
https://github.com/WujiangXu/A-mem
Treats memories as atomic linkable notes — explicit nod to Zettelkasten knowledge management. Dynamic linking; retroactive memory revision.
Active · Verified 2026-10-28 · fresh as of 2026-10-28 · 25 cited facts, 0 with a third-party source · Suggest a correction
At a glance
- Type
- Atomic-note / Zettelkasten-style repo fix
- Tier
- T3
- Section
- Research / specialised systems
- Latest release
- no releases fix
- GitHub
- 871★ +10/mo Python repo fix
- Pricing
- searched not found fix
- Funding
- not applicable — not commercial fix
- Freshness
- 2026-10-28 fix
- Layer
- agent-infra repo fix
- Licensing
- open-source repo fix
Memory taxonomy
- storage
- graph
- retrieval
- graph-traversal
- persistence
- long-term
- update
- append-only
- unit
- fact
- governance
- inspectable
- conflict
- n/a
When to use
Optimised for: research positioning (see memory_model)
Anti-fit: not applicable - research paper
Pros & cons
Pros
Adaptive memory with explicit policy for what to remember vs forget.
Cons
Research-only; no production deployment.
Claims & capabilities
Atomic-note (Zettelkasten-style) memory: dynamic linking and retroactive revision of memories. NeurIPS 2025; 443 cites.
Technical surface
- API surface
- not applicable — research paper
- Backend storage
- not applicable — research paper
- Deployment
- searched not found
- Embedding model
- not applicable — research paper
- Multi-tenancy
- not applicable — research paper
- MCP
- not applicable — research paper, no deployed product
- A2A
- not applicable — research paper, no deployed product
- OpenTelemetry
- not applicable — research paper, no deployed product
Similar systems
Other research / specialised systems in the catalog, ranked by inbound references.
- BAI-LAB MemoryOS T3
Hierarchical "OS" with Storage / Updating / Retrieval / Generation modules. Short-term → mid-term via FIFO dialogue-chain; mid-term → long-term via segmented paging.
- Titans (Google) T4
Neural long-term memory module that learns to memorise at test time. Uses gradient-of-loss as "surprise" signal; adaptive weight-decay forgetting. Three variants: MAC (memory-as-context), MAG (memory-as-gate), MAL (memory-as-layer).
- EverMemOS T4
Self-organizing memory OS for structured long-horizon reasoning. Three-phase model: episodic, semantic, reconstructive.
- EVOLVE-MEM T3
Dynamic Memory Network + Hierarchical Memory Manager + Self-Improvement Engine. L0 raw embeddings, L1 contextual summaries, L2 high-level principles. NeurIPS 2025 (Scaling Environments for Agents workshop).
- LiCoMemory T4
Lightweight hierarchical graph (CogniGraph) with entities and relations as semantic indexing layers. Incremental graph construction, fast updates, low-latency inference. Nov 2025.
- MemoRAG T3
RAG framework on top of a long-context memory model. Builds global memory once, generates contextual clues at query time. TheWebConf 2025.
Sources (24 cited facts, 0 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Atomic-note / Zettelkasten-style repo
- What it does & what's distinct Treats memories as atomic linkable notes — explicit nod to Zettelkasten knowledge manage… repo
- Claims / benefits Atomic-note (Zettelkasten-style) memory: dynamic linking and retroactive revision of mem… paper
- Created 2025-01 paper
- License MIT repo
- GitHub 871★ +10/mo Python repo
- Citations 443 cites 443/yr paper
- Performance LongMemEval: reports 60.6% overall accuracy with GPT-4o-mini (atomic-note + Zettelkasten… paper
- Reproducibility Too recent paper
- Code/weights release Code public + weights closed repo
- Versioning immutable append-log repo
- Tombstoning append-only no delete repo
- Schema evolution schema with migration repo
- Contradiction handling always append (no resolution) repo
- Forgetting policy none (permanent) repo
- Validated verticals research only repo
- Optimised for research positioning (see memory_model) repo
- Pros Adaptive memory with explicit policy for what to remember vs forget. repo
- Cons Research-only; no production deployment. repo
- Project & sources GitHub WujiangXu/A-mem arxiv 2502.12110 NeurIPS 2025 poster repo
- commit-trajectory [{"ym":"2025-02","cum":7},{"ym":"2025-03","cum":17},{"ym":"2025-05","cum":23},{"ym":"202… repo
- citation-trajectory [{"year":2025,"cum":30,"infl":6},{"year":2026,"cum":39,"infl":9}] paper
- licensing-bucket open-source repo
- taxonomy-three-layer-rollup agent-infra repo
Related systems
References (3)
- LoCoMo cites — S2 isInfluential citation
- MemGPT v2 / agent-tools cites — S2 isInfluential citation
- MemoryBank cites — S2 isInfluential citation
Referenced by (9)
- Agentic Memory cites — S2 isInfluential citation
- BAI-LAB MemoryOS cites — S2 isInfluential citation
- HeLa-Mem cites — S2 isInfluential citation
- LiCoMemory cites — S2 isInfluential citation
- LightMem cites — S2 isInfluential citation
- MAGMA cites — S2 isInfluential citation
- MemBART cites — S2 isInfluential citation
- Memformers (gradient memory) cites — S2 isInfluential citation
- MemR³ cites — S2 isInfluential citation