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247 hours over three months · 5.0 rating

Voice AI Product Build

A commercial voice product run as a long hourly engagement rather than a fixed-scope prototype — 247 hours across three months, rated 5.0.

The problem

A commercial voice product needed to work on real calls, not curated demo calls. The client had already learned that a prototype which impresses in a meeting tells you almost nothing about what happens at volume.

What we built

Voice agent development run as a long hourly engagement rather than a fixed-scope prototype: 247 hours from June to August 2025, iterating against real usage the whole way through.

Before: Demo calls are not real calls; Failures only appear at volume; Accents, interruptions, edge cases. After: 247 hours over three months · 5.0 rating.

Before

  • Demo calls are not real calls
  • Failures only appear at volume
  • Accents, interruptions, edge cases

After

247 hours over three months · 5.0 rating

Stack

Voice AIAI AgentOpenAI APIPython

Why it holds up

The length is the point. A voice product does not fail in the first demo — it fails on the hundredth call, on the accents and the interruptions and the edge cases nobody wrote a test for. Sustained hourly work over months is what lets you find those and fix them. The client left a 5.0 rating: “Cat is a talented Python and AI developer, she has a great attitude, quick learner, and overall fantastic experience!”

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