Kimi K3 · orcarouter

Kimi K3 is Moonshot AI's flagship model and its most capable release to date — a 2.8-trillion-parameter Mixture-of-Experts model built for long-horizon coding and end-to-end knowledge work. It pairs a 1M-token context window with native visual understanding, accepting text and image input with text output, and is designed to stay coherent across very long agentic sessions. Moonshot positions K3 for programming-agent scenarios such as Codex, Claude Code, Cline, and RooCode, as well as deep reasoning and knowledge work. It exposes a top-level reasoning_effort control and native tool calling, and speaks the OpenAI API format for drop-in integration. Note that K3 does not accept sampling parameters (no temperature / top_p / seed) — reasoning depth is controlled through reasoning_effort instead.

Base model All models on this base All models of the provider to the provider

Input, $/1M $3.00

Output, $/1M $15.00

Cache read $0.30

Cache write —

Context 1 048 576

Max output 131 072

Accepts image/bmp, image/gif, image/heic, image/heif, image/jpeg, image/png, image/webp, text, video/3gpp, video/avi, video/mov, video/mp4, video/mpeg, video/mpg, video/webm, video/wmv, video/x-flv

Last checked 04.11.2026 12:26:37 UTC

Source provider's page

Price alerts

API

OpenAI-compatible API: the official OpenAI SDKs work with this base URL. Replace YOUR_API_KEY with your key from the provider.

API base URL	`https://api.orcarouter.ai/v1`
Endpoint	`https://api.orcarouter.ai/v1/chat/completions`
Model id	`kimi/kimi-k3`

curl

curl https://api.orcarouter.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "kimi/kimi-k3", "messages": [{"role": "user", "content": "Hello!"}], "max_tokens": 256}'

Python

import requests

r = requests.post(
    "https://api.orcarouter.ai/v1/chat/completions",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
      "model": "kimi/kimi-k3",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ],
      "max_tokens": 256
    },
)
print(r.json())

JavaScript

const r = await fetch("https://api.orcarouter.ai/v1/chat/completions", {
  method: "POST",
  headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
  body: JSON.stringify({
    "model": "kimi/kimi-k3",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ],
    "max_tokens": 256
  }),
});
console.log(await r.json());

Request (JSON)

{
  "model": "kimi/kimi-k3",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "max_tokens": 256
}

Response (JSON)

{
  "id": "chatcmpl-...",
  "object": "chat.completion",
  "model": "kimi/kimi-k3",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Hi! How can I help?"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 9,
    "completion_tokens": 12,
    "total_tokens": 21
  }
}

The address is taken from the provider's model list; check it against the provider's documentation.

Provider's API documentation

Source: AI Rate Card, https://airatecard.com/en/c/offer%3Aorcarouter%7Ckimi/kimi-k3, prices checked 2026-11-04; seller's page: https://orcarouter.ai/models/kimi/kimi-k3

Technical details

ID: offer:orcarouter|kimi/kimi-k3