Kimi K3.1 Pro

kimi-k3.1-pro

Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, featuring a 1M-token context window. It is built for long-horizon coding, 3D creation, financial research, and end-to-end agentic knowledge work, with native image and video understanding.

Context Window

1M tokens

Maximum Output

131.1K tokens

Release Date

Oct 23, 2026

Modalities

Kimi K3.1 Pro Pricing

Input PriceOutput PriceCache ReadCache Create 5m
$2/M$10/M$0.2/M$2/M

Kimi K3.1 Pro API Capabilities

Reasoning

Supported

Tool calling

Supported

Temperature parameter

Not supported

Attachments

Supported

Knowledge Base

—

Endpoint Protocols

Completions APIMessages API

How to Use Kimi K3.1 Pro via the TokenHub API

Create API key
import OpenAI from "openai"

const client = new OpenAI({
  apiKey: process.env.TOKENHUB_API_KEY,
  baseURL: "https://us-api.tokenhub.com/v1",
})

const result = await client.chat.completions.create({})
console.log(result.choices[0]?.message?.content)

Kimi K3.1 Pro Benchmarks

Kimi K3.1 Pro

Index score
Artificial Analysis Intelligence IndexArtificial Analysis broad capability aggregate55.1

Metrics sourced from Artificial Analysis

Ready to use Kimi K3.1 Pro?

Use one API key to access Kimi K3.1 Pro and more AI models through TokenHub.

Create API key