Qwen3 Coder Next API

Access Qwen3 Coder Next from Qwen using Puter.js AI API.

Get Started

Model Card

Qwen3-Coder-Next is an open-weight coding model from Alibaba's Qwen team with 80B total parameters but only 3B active per token, designed specifically for coding agents and local development with a 256K context window. It uses a sparse Mixture-of-Experts (MoE) architecture with hybrid attention, trained on 800K executable coding tasks using reinforcement learning to excel at long-horizon reasoning, tool calling, and recovering from execution failures. It achieves performance comparable to models with 10-20x more active parameters on benchmarks like SWE-Bench while maintaining low inference costs.

Context Window N/A

tokens

Max Output 66K

tokens

Input Cost $0.12

per million tokens

Output Cost $0.75

per million tokens

Release Date Feb 3, 2026

 

API Usage Example

Add Qwen3 Coder Next 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: "qwen/qwen3-coder-next"
}).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: "qwen/qwen3-coder-next"
        }).then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

View full documentation →

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Frequently Asked Questions

What is this Qwen3 Coder Next API about?

The Qwen3 Coder Next API gives you access to Qwen's chat model through Puter.js. With just a few lines of JavaScript, you can integrate Qwen3 Coder Next into any web app or Node.js project — no API keys, no backend, and no configuration required.

Who created Qwen3 Coder Next?

Qwen3 Coder Next was created by Qwen and released on Feb 3, 2026.

What is the max output length of Qwen3 Coder Next?

Qwen3 Coder Next can generate up to 66K tokens in a single response.

How much does it cost?
The Qwen3 Coder Next API is available through the User-Pays Model. As a developer, you can add the Qwen3 Coder Next API to your app for free — your users pay for their own AI costs directly.
Price per 1M tokens
Input$0.12
Output$0.75
How do I access the Qwen3 Coder Next API?

You can access the Qwen3 Coder Next 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 Qwen3 Coder Next API work with React / Vue / Vanilla JS / Node / etc.?

Yes — the Qwen3 Coder Next 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 Qwen3 Coder Next to your app without worrying about API keys or setup.

Read the Docs View Tutorials