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Get Started with Firebase AI Logic + Flutter: Build A Simple Caption Generator

3 min readApr 15, 2026

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Get Started with Firebase AI Logic + Flutter: Build A Simple Caption Generator

This will be a continuation from the last article on Genkit Dart for Flutter Developers; you can check it out here.

WHAT IS FIREBASE AI LOGIC?

Firebase AI Logic (previously known as Vertex AI in Firebase) is Google’s official way to give your Flutter (iOS, Android, and web) apps direct, secure access to the latest Gemini models.

Today, we will build a simple app with Firebase AI Logic. We will learn how to use Firebase AI Logic with Gemini models in real Flutter apps.

{ If you’re not a Medium subscriber, read for FREE here. }

To get started, create a new Firebase project or use an existing one. Once you have your Firebase project set up, you also need to connect it to your Flutter project. Under project categories on Firebase → AI services → AI Logic → Get started (Gemini Developer API — Vertex AI Gemini API), we’ll continue with the Gemini Developer API

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Samuel Adekunle (techwithsam)
Samuel Adekunle (techwithsam)

Written by Samuel Adekunle (techwithsam)

Software Engineer (Mobile) | Building Scalable Mobile Solution | Tech Educator & Speaker