KwaiPilot: KAT-Coder-Pro V2

Access KAT-Coder-Pro V2 from KwaiPilot using Puter.js AI API.

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Model Card

KAT-Coder-Pro V2 is the flagship agentic coding model from Kwaipilot (Kuaishou's AI research division), built for enterprise-grade software engineering and SaaS integration. It uses a Mixture-of-Experts architecture with 72B active parameters and offers a 256K token context window.

The model achieves a 79.6% solve rate on SWE-Bench Verified, placing it among the top code generation models globally. It scores 44 on the Artificial Analysis Intelligence Index, well above the median of 15 for comparable non-reasoning models in its price tier, and generates output at roughly 109 tokens per second.

KAT-Coder-Pro V2 is designed for large-scale production environments, multi-system coordination, and agentic coding workflows. It also supports tool use, function calling, and web aesthetics generation for producing landing pages and presentation decks.

Context Window N/A

tokens

Max Output 80K

tokens

Input Cost $0.3

per million tokens

Output Cost $1.2

per million tokens

Release Date Mar 27, 2026

 

API Usage Example

Add KAT-Coder-Pro V2 to your app with just a few lines of code.
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: "kwaipilot/kat-coder-pro-v2"
}).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: "kwaipilot/kat-coder-pro-v2"
        }).then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

# pip install openai
from openai import OpenAI

client = OpenAI(
    base_url="https://api.puter.com/puterai/openai/v1/",
    api_key="YOUR_PUTER_AUTH_TOKEN",
)

response = client.chat.completions.create(
    model="kwaipilot/kat-coder-pro-v2",
    messages=[
        {"role": "user", "content": "Explain quantum computing in simple terms"}
    ],
)

print(response.choices[0].message.content)

curl https://api.puter.com/puterai/openai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_PUTER_AUTH_TOKEN" \
  -d '{
    "model": "kwaipilot/kat-coder-pro-v2",
    "messages": [
      {"role": "user", "content": "Explain quantum computing in simple terms"}
    ]
  }'

View full documentation →

Frequently Asked Questions

How do I use KAT-Coder-Pro V2?

You can access KAT-Coder-Pro V2 by KwaiPilot through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.

Is KAT-Coder-Pro V2 free?

Yes, it is free if you're using it through Puter.js. With the User-Pays Model, you can add KAT-Coder-Pro V2 to your app at no cost — your users pay for their own AI usage directly, making it completely free for you as a developer.

What is the pricing for KAT-Coder-Pro V2?
Pricing for KAT-Coder-Pro V2 is based on the number of input and output tokens used per request.
Price per 1M tokens
Input$0.3
Output$1.2
Who created KAT-Coder-Pro V2?

KAT-Coder-Pro V2 was created by KwaiPilot and released on Mar 27, 2026.

What is the max output length of KAT-Coder-Pro V2?

KAT-Coder-Pro V2 can generate up to 80K tokens in a single response.

Does it work with React / Vue / Vanilla JS / Node / etc.?

Yes — the KAT-Coder-Pro V2 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 KAT-Coder-Pro V2 to your app without worrying about API keys or setup.

Read the Docs View Tutorials