Gemini 2.5 Flash Preview 09-2025 API

Add AI to your application with Puter.js.

Explore Other Models

Model Card

Gemini 2.5 Flash Preview (September 2025) is a preview version of Google's hybrid reasoning Flash model with controllable thinking capabilities. It balances quality, cost, and latency for enterprise-scale applications.

Context Window N/A

tokens

Max Output 66K

tokens

Input Cost $0.3

per million tokens

Output Cost $2.5

per million tokens

Release Date Sep 1, 2025

 

API Usage Example

Add AI to your app with just a few lines of code.
No API keys, no backend, no configuration required.

// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';

puter.ai.chat("Explain quantum computing in simple terms").then(response => {
    document.body.innerHTML = response.message.content;
});

<html>
<body>
    <script src="https://js.puter.com/v2/"></script>
    <script>
        puter.ai.chat("Explain quantum computing in simple terms").then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

View full documentation →

More Models from Google

Chat

Gemini 3.1 Flash Lite Preview

Gemini 3.1 Flash Lite is Google's fastest and most cost-efficient model in the Gemini 3 series, opti...

 Image

Gemini 3.1 Flash Image

Gemini 3.1 Flash Image (also known as Nano Banana 2) is Google DeepMind's latest state-of-the-art im...

 Chat

Gemini 3.1 Pro

Gemini 3.1 Pro is Google's most advanced reasoning model, building on the Gemini 3 series with over ...

View all Google models →

Frequently Asked Questions

What is this Gemini 2.5 Flash Preview 09-2025 API about?

The Gemini 2.5 Flash Preview 09-2025 API gives you access to Google's chat model through Puter.js. With just a few lines of JavaScript, you can integrate Gemini 2.5 Flash Preview 09-2025 into any web app or Node.js project — no API keys, no backend, and no configuration required.

Who created Gemini 2.5 Flash Preview 09-2025?

Gemini 2.5 Flash Preview 09-2025 was created by Google and released on Sep 1, 2025.

What is the max output length of Gemini 2.5 Flash Preview 09-2025?

Gemini 2.5 Flash Preview 09-2025 can generate up to 66K tokens in a single response.

How much does it cost?
The Gemini 2.5 Flash Preview 09-2025 API is available through the User-Pays Model. As a developer, you can add the Gemini 2.5 Flash Preview 09-2025 API to your app for free — your users pay for their own AI costs directly.
Price per 1M tokens
Input$0.3
Output$2.5
How do I access the Gemini 2.5 Flash Preview 09-2025 API?

You can access the Gemini 2.5 Flash Preview 09-2025 API with just a few lines of JavaScript — no API keys, no backend, and no configuration required. Include the Puter.js library in your project and start making calls right away. For more details, check out our documentation.

Does the Gemini 2.5 Flash Preview 09-2025 API work with React / Vue / Vanilla JS / Node / etc.?

Yes — the Gemini 2.5 Flash Preview 09-2025 API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.

Get started with Puter.js

Add AI to your application without worrying about API keys or setup.

Explore Models View Tutorials