---
title: "How to optimize prompts for faster on-device AI"
url: https://daily.dev/posts/how-to-optimize-prompts-for-faster-on-device-ai-24dhrdcqa
source_url: https://www.youtube.com/watch?v=4ST9OzN0elg
type: video:youtube
source: "Android Developers"
published: 2026-06-11T20:47:13.986Z
updated: 2026-06-17T19:53:54.405Z
tags: ["android", "prompt-engineering", "local-ai"]
reading_time: 1
upvotes: 0
comments: 0
language: en
---

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# How to optimize prompts for faster on-device AI

**[Android Developers](https://daily.dev/sources/androiddevelopers)** · 1 min read · 0 upvotes · 0 comments

## Summary

A live demo walkthrough showing how to optimize prompts for on-device AI using ML Kit's GenAI prompt API with Gemini Nano. The presenter demonstrates how an initial verbose prompt produces slow, lengthy responses, then shows how adding constraints like 'one sentence, less than 15 words' dramatically speeds up generation to 1.6 seconds. The optimized prompt is then shown running in a Jetpack Compose Android app for a Paris trip itinerary summary feature.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://www.youtube.com/watch?v=4ST9OzN0elg>

## Similar posts on daily.dev

- [Build intelligent Android apps: On-device inference](https://daily.dev/posts/build-intelligent-android-apps-on-device-inference-kynhfi0rx) · Android Developers Blog · 0 upvotes · 0 comments

---

Tags: [#android](https://daily.dev/tags/android), [#prompt-engineering](https://daily.dev/tags/prompt-engineering), [#local-ai](https://daily.dev/tags/local-ai)

[View this post on daily.dev](https://daily.dev/posts/how-to-optimize-prompts-for-faster-on-device-ai-24dhrdcqa)