How much does Kimi K3.1 Pro cost?

On the Respan gateway, Kimi K3.1 Pro costs from $0.00 per 1M input tokens and $0.00 per 1M output tokens on Moonshot, after gateway discounts. Averaged across its 3 providers, it costs $1.33 per 1M input tokens and $6.67 per 1M output tokens.

Which providers serve Kimi K3.1 Pro on Respan?

Kimi K3.1 Pro is available through 3 providers: Moonshot, Novita, and OpenRouter.

What is Kimi K3.1 Pro's context window?

Kimi K3.1 Pro accepts up to 1M tokens of context on its largest provider route.

How do I use Kimi K3.1 Pro with the Respan gateway?

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "moonshot/kimi-k3.1-pro". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

How fast is Kimi K3.1 Pro?

Over the last 30 days of requests through the Respan gateway, the fastest provider was Moonshot at 128 tokens per second, and the lowest response latency was 24.1 seconds on Moonshot. Speed varies with request size and provider.

Kimi K3.1 Pro

Q: What is Kimi K3.1 Pro?

Kimi K3.1 Pro is a model from Moonshot, released on Oct 23, 2026. Kimi K3.1 Pro is the first model in Moonshot AI's K3.1 series: a post-trained version of Kimi K3 with substantially larger RL compute. It is a 3T-class multimodal reasoning model with native visual understanding and a 1M-token context window, with major gains in coding, 3D creation, and financial research and modeling. It always reasons, with configurable reasoning effort (low, high, max).

Kimi K3.1 Pro is the first model in Moonshot AI's K3.1 series: a post-trained version of Kimi K3 with substantially larger RL compute. It is a 3T-class multimodal reasoning model with native visual understanding and a 1M-token context window, with major gains in coding, 3D creation, and financial research and modeling. It always reasons, with configurable reasoning effort (low, high, max).

Input / output, fromFree: $0.00 / $0.00 per 1M
Weekly tokens / requests: 760.7K / 108
Context: 1M tokens
Released: Oct 23, 2026

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Agent setup

Paste into Claude Code, Cursor, or Codex

Help me set up the Respan gateway: fetch and follow https://www.respan.ai/docs/agent-setup.md. Use model "moonshot/kimi-k3.1-pro".

from openai import OpenAI

client = OpenAI(

    base_url="https://api.respan.ai/api/",

    api_key="YOUR_RESPAN_API_KEY",

)

response = client.chat.completions.create(

    model="moonshot/kimi-k3.1-pro",

    messages=[{"role": "user", "content": "Hello!"}],

)

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

import OpenAI from "openai";

const client = new OpenAI({

  baseURL: "https://api.respan.ai/api/",

  apiKey: "YOUR_RESPAN_API_KEY",

});

const response = await client.chat.completions.create({

  model: "moonshot/kimi-k3.1-pro",

  messages: [{ role: "user", content: "Hello!" }],

});

console.log(response.choices[0].message.content);

curl https://api.respan.ai/api/chat/completions \

  -H "Authorization: Bearer YOUR_RESPAN_API_KEY" \

  -H "Content-Type: application/json" \

  -d '{

    "model": "moonshot/kimi-k3.1-pro",

    "messages": [{"role": "user", "content": "Hello!"}]

}'

Read docs

Providers

3 providers, cheapest first, priced per 1M tokens after gateway discounts.

Provider	Context	Input	Output	Cache read	Capabilities
MoonshotFree`moonshot/kimi-k3.1-pro`	1M	$0.00/M	$0.00/M	$0.00/M	+2
Novita`novita/moonshotai/kimi-k3.1-pro`	1M	$2.00/M	$10.00/M	$0.20/M	+2
OpenRouter`openrouter/moonshotai/kimi-k3.1-pro`	1M	$2.00/M	$10.00/M	$0.20/M	+2

Is a provider down? Moonshot AI status, OpenRouter status

Pricing

Averaged across 3 providers, in USD per 1M tokens after gateway discounts.

Average input: $1.33 per 1M
Average output: $6.67 per 1M
Average cache read: $0.13 per 1M

Cost by volume

Total cost from 0 to 1T tokens on the cheapest and most expensive provider.

Highest$2.00/MNovita and OpenRouterLowest$0.00/MMoonshot

Throughput and latency

30-day averages from requests through the Respan gateway, 1 of 3 routes had traffic in that window. Under each figure, every model on the gateway by its average, this one in blue.