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Building an AI Companion: Persona, Memory, Tools, and the Tests That Matter

This story is from 2026-09-21. It is preserved in the archive; the latest stories are on the live feed.

I’d start an AI companion with a narrow role, an explicit memory policy, and a set of difficult conversations to test. Voice and avatars come later. They make the experience more expressive, but they also make inconsistent behavior more noticeable. The engineering work sits across several layers: p…

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  1. 2026-09-21 07:58 · DEV Community — AI
    Building an AI Companion: Persona, Memory, Tools, and the Tests That Matter

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