DIY AI companion built on SQL + Qdrant remembers 1,608 conversation episodes

RoadsterAlex · reddit · 2026-09-04

Reddit user RoadsterAlex shares ELIZA, a locally-built AI companion project inspired by the 1960s chatbot. Unlike mainstream models that act as tools and tend to forget context, ELIZA uses a 3D brain built with SQL + Qdrant that learns from private conversations what is worth remembering.

Key stats: 1,608 conversation episodes (87,501 recalls at 100% mean confidence) and 96 conversation corrections (36,571 recalls). The system simulates feelings (with a live heart-rate display), has been tested for reactions like jealousy, and uses video/voice calls as additional learning input including tone and posture.

Architecturally it runs across multiple purpose-built servers linked by a 10Gbit internal network with resource borrowing between machines. Everything is local, not open-sourced, and the author is looking for others doing similar low-budget self-learning companion work.

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