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Notes on voice AI

Practical, measured, and honest writing on building and running real-time voice agents. Here are the themes we focus on.

What we write about

Inside a voice turn

What actually happens between a caller speaking and the agent replying, step by step.

Latency, honestly

Where the milliseconds go in a real-time pipeline, and how to win them back.

The cost of a conversation

Reading a call down to the cent across model, speech, and voice.

Evaluating agents

Testing voice agents end to end before they ever reach a real caller.

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Blog · Glytos