Tencent open-sources Agent Memory: local long-term memory, 61% fewer tokens, 48%→76% accuracy

solyarisoftware · x · 2026-10-13

Tencent open-sourced TencentDB Agent Memory, giving AI agents long-term memory that runs 100% locally on plain SQLite with zero external API dependencies (5.1k GitHub stars). Key numbers: 61% fewer tokens, PersonaMem accuracy up from 48% to 76%, and a 51.52% relative pass-rate improvement when integrated with OpenClaw. Instead of compressing history into an opaque vector pile, it builds a semantic pyramid (L0 Conversation → L1 Atom → L2 Scenario → L3 Persona), encodes short-term state as Mermaid graphs in context, offloads verbose tool logs to disk, and lets the agent drill back via nodeid — lossless, fully readable markdown at every layer.

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