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8 Jul 2025

Paper summary

Paper summary: MemOS: A Memory OS for AI System

MemOS proposes a memory operating system for LLMs that manages plaintext, activation-based and parameter-level memory as one schedulable resource, built around "MemCube" units with provenance and versioning.

  • RAG adds knowledge as plain text but is stateless; MemOS treats memory as a managed resource with a lifecycle.
  • A MemCube bundles memory content with metadata like provenance and version, and can move between memory types.

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AI updates

SmolLM3: an open 3B reasoner with the full recipe

Hugging Face released SmolLM3, a 3B model trained on 11T tokens with dual think/no_think modes, six languages and 128K context, published with its complete training blueprint.

  • One 3B model with two modes: think step by step, or answer directly.
  • The release includes the exact data mixtures and three-stage pre-training recipe, not just weights.

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