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Building an AI voice agent from scratch: the parts that actually took our time

This story is from 2026-09-07. It is preserved in the archive; the latest stories are on the live feed.

We recently finished our first proper phone-based AI agent and did a postmortem on where the engineering time actually went. It wasn't the LLM. We spent maybe 15% of the time getting the actual conversation behaviour right. The rest went into all the boring stuff around it. The biggest time sinks w…

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  1. 2026-09-07 09:01 · r/artificial
    Building an AI voice agent from scratch: the parts that actually took our time

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