TRACE: Open-Source Hierarchical Memory System for LLM Agents
PsychologicalDot7749 · reddit · 2026-07-06
The open-source project TRACE provides a hierarchical memory system for LLM agents, organizing conversation history into a topic tree (branches + summaries) rather than flat RAG chunks, and is released as a pypi package. On the MemoryAgentBench (ICLR 2026) EventQA task, it achieved 82.5% F1 with gpt-oss-20B and 83.8% with gpt-oss-120B, significantly outperforming Mem0 (37.5%) and Letta/MemGPT (26.2%). The author ran local comparisons with open-weight models, acknowledging the lack of a fair same-backbone test, and has open-sourced the complete JSON logs.
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