Kimi K3.1 Pro Highspeed

Kimi K3.1 Pro 高速版，支持长上下文、深度思考、函数工具、结构化输出及视觉理解。

Model ID: kimi-k3.1-pro-highspeed · Type: chat · Provider: Moonshot

Endpoints: /v1/chat/completions · /v1/responses · /v1/messages

Pricing

Input (per 1M tokens)$2 USD
Output (per 1M tokens)$10 USD
Cache read (per 1M tokens)$0.1 USD
Cache write 5m (per 1M tokens)$2 USD
Cache write 1h (per 1M tokens)$4 USD

Capabilities

import os

from openai import OpenAI

client = OpenAI(api_key=os.environ["ROUTER_API_KEY"], base_url="https://api.router.ai/v1")
resp = client.chat.completions.create(
    model="kimi-k3.1-pro-highspeed",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)

FAQ

How much does Kimi K3.1 Pro Highspeed cost on J8API?

Kimi K3.1 Pro Highspeed (`kimi-k3.1-pro-highspeed`) is billed per usage at $2/1M in · $10/1M out, in USD. Current pricing is always listed at https://j8api.com/models/kimi-k3.1-pro-highspeed.

How do I call Kimi K3.1 Pro Highspeed through J8API?

Send a request to https://api.router.ai/v1/chat/completions with the header `Authorization: Bearer <your API key>` and `"model": "kimi-k3.1-pro-highspeed"`. The API is OpenAI-compatible, so any OpenAI SDK works by changing base_url to https://api.router.ai/v1 — no other code change.

Which endpoints does Kimi K3.1 Pro Highspeed support?

Kimi K3.1 Pro Highspeed can be called on: /v1/chat/completions; /v1/responses; /v1/messages.

What can Kimi K3.1 Pro Highspeed do?

Kimi K3.1 Pro Highspeed supports: vision, thinking, function_calling, input_video, structured_output.

Who makes Kimi K3.1 Pro Highspeed?

Kimi K3.1 Pro Highspeed is a chat model from Moonshot, available through the J8API gateway with the same API key as every other model.

Call it through the J8API OpenAI-compatible endpoint (API base: https://api.router.ai/v1). AI agents can browse the catalog and call any text model through MCP (https://mcp.router.ai/mcp); for image, video and other modalities use the API above.

Which should you pick

API reference · All models