SALT stores chatbot memory in a trie and uses theme-based retrieval, but still over-retrieves

No_Sky9786 · reddit · 2026-08-04

The author describes SALT, a chatbot memory system that stores all input in a trie in DRAM and retrieves sentences using a keyword-theme dominance system with a current CELF budget of 20%.

They say the system is efficient, but it often retrieves too much irrelevant information, which makes smaller models hallucinate. They’ve tried using theme coverage as a unit for retrieval, but it still pulls in too much material within the same theme. As they add agents and more modules, they expect memory management to become an even bigger problem and ask for suggestions.

Related event: SALT Uses Trie for Agent Memory(2 posts)→

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