AI-first, in practice
Perspectives from a team building AI-first technology: what is new in the field, what we are learning and shipping, the experiences behind it, and announcements from Kilevel.
Article 50 puts a sentence at the front of every call
The EU AI Act obliges you to tell callers they are speaking to a machine. That obligation lands in one specific place, the greeting, and it changes how the first three seconds of a call have to be built.
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A longer prompt is not a conversation design
Every voice agent that fails in production fails the same way: the prompt grew until the model could no longer hold all of it at once. A state graph is what you reach for when adding instructions stops working.
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Where the second goes in an AI phone call
Response latency is the single loudest quality signal in a voice agent, and it is almost never one slow component. It is five costs in sequence, and most of the wins come from overlapping them rather than speeding any one of them up.
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