Qwen3.5 Plus 02-15 API

Access Qwen3.5 Plus 02-15 from Qwen using Puter.js AI API.

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Model Card

Qwen3.5-Plus is the hosted flagship model in the Qwen3.5 series, available through Alibaba Cloud Model Studio. It offers a 1 million token context window by default and includes built-in tools with adaptive tool use, including web search and code interpreter capabilities. The model supports reasoning mode (chain-of-thought), search, and a fast response mode without extended thinking. It is accessible via an OpenAI-compatible API and can be integrated with third-party coding tools like Claude Code, Cline, and OpenClaw. Qwen3.5-Plus is designed for agentic workflows that combine multimodal reasoning with tool use.

Context Window 1M

tokens

Max Output N/A

tokens

Input Cost $0.26

per million tokens

Output Cost $1.56

per million tokens

Release Date Feb 16, 2026

 

API Usage Example

Add Qwen3.5 Plus 02-15 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/qwen3.5-plus-02-15"
}).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/qwen3.5-plus-02-15"
        }).then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

View full documentation →

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Frequently Asked Questions

What is this Qwen3.5 Plus 02-15 API about?

The Qwen3.5 Plus 02-15 API gives you access to Qwen's chat model through Puter.js. With just a few lines of JavaScript, you can integrate Qwen3.5 Plus 02-15 into any web app or Node.js project — no API keys, no backend, and no configuration required.

Who created Qwen3.5 Plus 02-15?

Qwen3.5 Plus 02-15 was created by Qwen and released on Feb 16, 2026.

What is the context window of Qwen3.5 Plus 02-15?

Qwen3.5 Plus 02-15 supports a context window of 1M tokens. For reference, that is roughly equivalent to 2,000 pages of text.

How much does it cost?
The Qwen3.5 Plus 02-15 API is available through the User-Pays Model. As a developer, you can add the Qwen3.5 Plus 02-15 API to your app for free — your users pay for their own AI costs directly.
Price per 1M tokens
Input$0.26
Output$1.56
How do I access the Qwen3.5 Plus 02-15 API?

You can access the Qwen3.5 Plus 02-15 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 Qwen3.5 Plus 02-15 API work with React / Vue / Vanilla JS / Node / etc.?

Yes — the Qwen3.5 Plus 02-15 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 Qwen3.5 Plus 02-15 to your app without worrying about API keys or setup.

Read the Docs View Tutorials