Solar Pro 3 API

Access Solar Pro 3 from Upstage AI using Puter.js AI API.

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Model Card

Solar Pro 3 is Upstage's Mixture-of-Experts language model with 102B total parameters and 12B active parameters per forward pass, delivering strong reasoning and instruction-following capabilities. It builds on Solar Pro 2 with improved reasoning accuracy while maintaining the same API interface and throughput. The model is optimized for Korean with English and Japanese support, and is designed for enterprise production workloads.

Context Window N/A

tokens

Max Output N/A

tokens

Input Cost $0.15

per million tokens

Output Cost $0.6

per million tokens

Release Date Jan 27, 2026

 

API Usage Example

Add Solar Pro 3 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", {
    model: "upstage/solar-pro-3"
}).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", {
            model: "upstage/solar-pro-3"
        }).then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

View full documentation →

Frequently Asked Questions

What is this Solar Pro 3 API about?

The Solar Pro 3 API gives you access to Upstage AI's chat model through Puter.js. With just a few lines of JavaScript, you can integrate Solar Pro 3 into any web app or Node.js project — no API keys, no backend, and no configuration required.

Who created Solar Pro 3?

Solar Pro 3 was created by Upstage AI and released on Jan 27, 2026.

How much does it cost?
The Solar Pro 3 API is available through the User-Pays Model. As a developer, you can add the Solar Pro 3 API to your app for free — your users pay for their own AI costs directly.
Price per 1M tokens
Input$0.15
Output$0.6
How do I access the Solar Pro 3 API?

You can access the Solar Pro 3 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 Solar Pro 3 API work with React / Vue / Vanilla JS / Node / etc.?

Yes — the Solar Pro 3 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 Solar Pro 3 to your app without worrying about API keys or setup.

Read the Docs View Tutorials