Using KAT Coder Pro V2 on Vercel AI Gateway

Implementation guide · KAT · Kwaipilot

Serverless

Vercel AI Gateway exposes KAT Coder Pro V2 through model ID kwaipilot/kat-coder-pro-v2. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-06-29. Next refresh: weekly.

Quick Start

1
Create an account at Vercel AI Gateway and generate an API key.
2
Use the Vercel AI Gateway SDK or REST API to call kwaipilot/kat-coder-pro-v2 — see the documentation for request format.
3
You'll be billed $0.30/1M input, $1.20/1M output tokens. See full pricing.

API Portal Documentation Pricing Model Card

Code Examples

Install

pip install openai

API key

AI_GATEWAY_API_KEY

Model ID

kwaipilot/kat-coder-pro-v2

creator/model-name e.g. kwaipilot/kat-coder-pro-v2

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["AI_GATEWAY_API_KEY"],
    base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
    model="kwaipilot/kat-coder-pro-v2",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Pricing on Vercel AI Gateway

Type	Price (per 1M)
Input tokens	$0.30
Output tokens	$1.20

Capabilities

JSON / Tool useStructured OutputsCode Execution

About KAT Coder Pro V2

KAT-Coder-Pro V2 is Kwaipilot's flagship agentic coding model, achieving 79.6% on SWE-Bench Verified (March 2026). Designed for complex enterprise software engineering tasks, multi-system coordination, and SaaS integration. Uses a 'Specialize-then-Unify' training paradigm with five specialized expert domains. Context: 256K tokens. Max output: 256K tokens (on Streamlake endpoint). Available via Vercel AI Gateway and OpenRouter.

Full model details →

Model Specs

Released2026-03-27

Context256k

ArchitectureDecoder Only

Vercel