Moonshot AI · MultimodalReleased 2026-10-23

kimi-k3.1-pro-highspeed

moonshotai/kimi-k3.1-pro-highspeed id

Kimi K3.1 Pro Highspeed is the high-speed variant of Moonshot AI’s frontier Kimi K3.1 Pro model for complex reasoning, coding, and agentic workflows, with vision, tool use, structured outputs, and long-context support.

Tool useReasoningStructured outputChat

Type

Use kimi-k3.1-pro-highspeed

# Drop-in OpenAI-compatible client
$ import { generateText } from 'ai'
$ 
$ const { text } = await generateText({
$   model: 'moonshotai/kimi-k3.1-pro-highspeed',
$   baseURL: 'https://synapse.garden/api/v1',
$   apiKey: process.env.MG_KEY,
$   prompt: 'Why is the sky blue?',
$ })

1.0M

CONTEXT WINDOW

1.0M

MAX OUTPUT

$4.40/M

INPUT · PER M

$22.00/M

OUTPUT · PER M

PRICING

List prices, every modality.

Rate	Per million tokens · USD
Input	$4.40/M
Output	$22.00/M
Cache read	$0.220/M
Cache write	$4.40/M

Honest list pricesHow we calculate prices

Other Moonshot AI models

See all 9

Model

Input

Output

Context

Type

kimi-k3.1-proKimi K3.1 Pro is a frontier model from Moonshot AI for complex reasoning, coding, and agentic workflows, with support for vision, tool use, structured outputs, and long-context tasks.TOOLSREASONINGJSON
Input
$2.20/M
Output
$11.00/M
Context
1.0M
kimi-k3-fastFast version of Kimi’s flagship model for long-horizon coding and end-to-end knowledge work, with a 1M-token context window.REASONINGTOOLSJSON
Input
$4.95/M
Output
$24.75/M
Context
1M
kimi-k3Kimi’s flagship model for long-horizon coding and end-to-end knowledge work, with a 1M-token context window.REASONINGTOOLSJSON
Input
$3.30/M
Output
$16.50/M
Context
1M
kimi-k2.7-code-highspeedKimi K2.7 Code HighSpeed is the high-speed version of Kimi K2.7 Code, the same model as Kimi K2.7 Code, but with an output speed of approximately 180 Tokens/s and up to 260 Tokens/s in short context scenarios, delivering a more extreme coding experience.REASONINGTOOLSJSON
Input
$2.09/M
Output
$8.80/M
Context
262.1K
kimi-k2.7-codeKimi-K2.7-Code is a coding model from Moonshot AI. It has improved coding & agent performance over K2.6, more reasoning efficiency with less overthinking, and improved instruction following for long-horizon coding.REASONINGTOOLSJSON
Input
$1.04/M
Output
$4.40/M
Context
256K
kimi-k2.6Kimi K2.6 demonstrates particularly strong performance in long-horizon coding tasks and produces professional-grade design with code and vision.TOOLSREASONINGJSONLONG-CTX
Input
$1.04/M
Output
$4.40/M
Context
262K
kimi-k2.5kimi-k2.5 is Kimi's most versatile model to date, featuring a native multimodal architecture that supports both visual and text input, thinking and non-thinking modes, and dialogue and agent tasks.REASONINGTOOLSJSON
Input
$0.660/M
Output
$3.30/M
Context
256K
kimi-k2Kimi K2 is a state-of-the-art mixture-of-experts (MoE) language model with 32 billion activated parameters and 1 trillion total parameters. Trained with the Muon optimizer, Kimi K2 achieves exceptional performance across frontier knowledge, reasoning, and coding tasks while being meticulously optimized for agentic capabilities.TOOLS
Input
$0.627/M
Output
$2.53/M
Context
131.1K

FAQ · KIMI-K3.1-PRO-HIGHSPEED

Frequently asked

01 / 04

How do I call kimi-k3.1-pro-highspeed from my code?

Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘moonshotai/kimi-k3.1-pro-highspeed’ and supply your Synapse Garden API key. No code changes beyond the base URL.

02 / 04

How much does kimi-k3.1-pro-highspeed cost?

Input: $4.40/M per million tokens. Output: $22.00/M per million tokens. The free tier includes a million tokens every month at no cost.

03 / 04

What's the context window for kimi-k3.1-pro-highspeed?

kimi-k3.1-pro-highspeed supports a context window of 1.0M tokens, with a maximum output of 1.0M tokens.

04 / 04

Do I need a separate Anthropic or OpenAI account?

No. Synapse Garden is the single API surface — one key gives you OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, xAI, Cohere, and more. Billing, rate limits, and audit logs are unified.

READY

Try kimi-k3.1-pro-highspeed in three minutes.

Sign up, create a key, drop our base URL into your existing client. The free tier includes a million tokens every month — no credit card.

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