AI case study

Retell AIVoice agent automation

Building agents required weeks of manual logic and 3,000-token prompts. Now, GPT-4o manages the flow, letting teams go live in days.

Published|7 months ago

Key results

Cost Reduction
up to 80%
Net Promoter Score
90
CSAT Score
85%+

Result highlights

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The story

Context

A voice automation startup operating with a lean team of 11 engineers to replace legacy call center scripting with AI-native infrastructure.

Challenge

Creating natural voice agents previously required chaining brittle instructions, manually managing context windows, and writing 3,000-token prompts...

Solution
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Scope & timeline

  • Customer go-live time reduced from weeks to days

Quotes

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The company

Retell AI logo

Retell AI

retellai.com

Platform for building and deploying conversational AI voice agents for phone calls.

IndustrySoftware & Platforms
LocationSan Francisco, CA, USA
Employees11-50
Founded2023

The AI provider

AI research and deployment company developing generative models and tools.

IndustrySoftware & Platforms
LocationSan Francisco, CA, USA
Employees1K-5K
Founded2015

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