AI case study

PortolaConversational voice agent

Cached prompts failed dynamic voice chats. Rebuilding context every turn via GPT-5.1 cut memory misses 30% and lifted retention 20%.

Published|1 month ago

Key results

Faster Response
>0.7 sec
Fewer Memory Errors
30%
Retention Increase
>20%

Result highlights

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The story

Context

A voice-first software platform serving more than 200,000 monthly active users who engage in open-ended, personalized dialogue with animated characters.

Challenge

Voice interactions require near-instant latency, yet users constantly shift topics midstream, rendering standard prompt caching ineffective. The...

Solution
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Quotes

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The company

Portola logo

Portola

tolans.com

AI-powered virtual companion app for emotional support and conversation.

IndustrySoftware & Platforms
LocationSan Francisco, CA, USA
Employees1-10
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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