Kimi K3.1 Pro
by Moonshot AI · served by Phala
phala/moonshotai/kimi-k3.1-pro- Input
- $2.80/1M tokens
- Output
- $14.00/1M tokens
- Context
- 1Mtokens
- Max output
- 1Mtokens
- Knows to
- -
- Released
- 23 Oct 2026
About
Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window.
Pricing
| Input | $2.80 | per 1M prompt tokens |
|---|---|---|
| Output | $14.00 | per 1M generated tokens, reasoning included |
What a request costs
| Typical request | Each | Per 1,000 |
|---|---|---|
| Short chat reply1,500 in · 400 out | $0.0098 | $9.80 |
| Question over a long document40,000 in · 800 out | $0.123 | $123.20 |
| Agent tool step20,000 in · 1,200 out | $0.073 | $72.80 |
At the developer-API rate, before any provider promotion or prompt-cache saving. In the app, the model picker shows what a message costs on your plan before you send it.
Benchmarks
Head-to-head rankings
- #1UI componentsModel arenaElo 139366% wins
- #2Full stackAgent arenaElo 132962% wins
- #2SlidesAgent arenaElo 130471% wins
- #23DModel arenaElo 144271% wins
- #2SVGModel arenaElo 132562% wins
- #3Mobile appsAgent arenaElo 127460% wins
- #3Web appsAgent arenaElo 129959% wins
- #4CodeModel arenaElo 135161% wins
- #4Game devModel arenaElo 140666% wins
- #5codetovideoAgent arenaElo 124759% wins
Scores from Artificial Analysis; bars are scaled to the best model on our list. Rankings from Design Arena head-to-head votes. Published by OpenRouter alongside its catalogue.
Call it from code
OpenAI-compatible: point any OpenAI SDK at https://api.privateer.pro/v1 and set
model. Keys are created in the app under Settings.
curl https://api.privateer.pro/v1/chat/completions \
-H "Authorization: Bearer $PRIVATEER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "phala/moonshotai/kimi-k3.1-pro",
"messages": [{ "role": "user", "content": "Hello" }]
}'
import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.privateer.pro/v1",
api_key=os.environ["PRIVATEER_API_KEY"],
)
reply = client.chat.completions.create(
model="phala/moonshotai/kimi-k3.1-pro",
messages=[{"role": "user", "content": "Hello"}],
)
print(reply.choices[0].message.content)
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.privateer.pro/v1",
apiKey: process.env.PRIVATEER_API_KEY,
});
const reply = await client.chat.completions.create({
model: "phala/moonshotai/kimi-k3.1-pro",
messages: [{ role: "user", content: "Hello" }],
});
console.log(reply.choices[0].message.content);
Prices are USD at the developer-API rate, as of 11 Nov 2026, rebuilt daily from the providers’ live catalogues. ← All models