MoonshotAI: Kimi K2 0905 API

Access MoonshotAI: Kimi K2 0905 from Moonshot AI using Puter.js AI API.

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Model Card

Kimi K2 0905 is the September 2025 update to Kimi K2, extending context length from 128K to 256K tokens. It improves agentic coding accuracy, scaffold generalization, and frontend coding for web and 3D tasks while maintaining the same 1T parameter MoE architecture.

Context Window N/A

tokens

Max Output 262K

tokens

Input Cost $0.4

per million tokens

Output Cost $2

per million tokens

Release Date Sep 5, 2025

API Usage Example

Add MoonshotAI: Kimi K2 0905 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: "moonshotai/kimi-k2-0905"
}).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: "moonshotai/kimi-k2-0905"
        }).then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

View full documentation →

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Frequently Asked Questions

What is this MoonshotAI: Kimi K2 0905 API about?

The MoonshotAI: Kimi K2 0905 API gives you access to Moonshot AI's chat model through Puter.js. With just a few lines of JavaScript, you can integrate MoonshotAI: Kimi K2 0905 into any web app or Node.js project — no API keys, no backend, and no configuration required.

Who created MoonshotAI: Kimi K2 0905?

MoonshotAI: Kimi K2 0905 was created by Moonshot AI and released on Sep 5, 2025.

What is the max output length of MoonshotAI: Kimi K2 0905?

MoonshotAI: Kimi K2 0905 can generate up to 262K tokens in a single response.

How much does it cost?

The MoonshotAI: Kimi K2 0905 API is available through the User-Pays Model. As a developer, you can add the MoonshotAI: Kimi K2 0905 API to your app for free — your users pay for their own AI costs directly.

	Price per 1M tokens
Input	$0.4
Output	$2

How do I access the MoonshotAI: Kimi K2 0905 API?

You can access the MoonshotAI: Kimi K2 0905 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 MoonshotAI: Kimi K2 0905 API work with React / Vue / Vanilla JS / Node / etc.?

Yes — the MoonshotAI: Kimi K2 0905 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 MoonshotAI: Kimi K2 0905 to your app without worrying about API keys or setup.

Read the Docs View Tutorials