ModelMoonshot AI · Joined Oct 24, 2026 · Kimi

Kimi K3.1 Pro

Moonshot AI's first K3.1 series model, a 3 trillion parameter model with a 1M token context window.

Available for Kimi API open platform

Official page Report a correction

8th of 150 on Arena WebDev
2nd cheapest of 4 similar models by price

The basics

Checked Oct 31

Status: ActiveAvailable through the Kimi API open platform.
Model ID
Price: $2 in, $10 outPer 1M tokens, since Oct 24

Updates

Now available

OpenClaw 2026.9.35 adds Kimi K3.1 Pro controls

The extended-stable release gives moonshot/kimi-k3.1-pro, kimi/k3.1-pro and their Highspeed variants the K3 thinking, effort and video controls. K3.1 rejects off locally instead of returning a provider 400.

New release

Kimi K3.1 Pro and K3.1 Pro Highspeed released

Moonshot released Kimi K3.1 Pro, a post-trained version of Kimi K3 with a 1-million-token context window, plus a Highspeed variant with 2-3x the speed. Both are available on Kimi.com, Kimi Work, Kimi Code and the Kimi API, and full open weights are due by Nov 4, 2026.

Benchmark

Kimi K3.1 Pro debuts 8th of 27 on Vals Index

In its first result on Vals Index, Kimi K3.1 Pro at max effort scored 62.5%, 8th of 27.

After

62.52%, rank 8 of 27

Full changelog, by month

Strengths and weaknesses

Strengths

Coding, 3D creation, finance research and other long-horizon agent work
Vision input, tool calling and structured output

Weaknesses

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Access requires a top-up of at least 10 yuan on the open platform, and the 15 yuan new user voucher cannot be used for it

Role

Open-weight model at Moonshot AI

Kimi K3.1 ProCurrent
Oct 2026 to now · 1 month
Kimi K3Jul 2026 to now · 4 months

Works with

From recorded changes

OpenClaw character

Agent · 1 shared change

Similar models

Kimi K3 character

$3 in, $15 out

Kimi K3.1 Pro Highspeed

$4 in, $20 out

$0.95 in, $4 out

Similar models for now. Real viewing data comes after launch.

Cost vs peers

2nd cheapest of 4 similar models by output price.

Kimi K2.7 Code$4 out · $0.95 in
Kimi K3.1 Pro$10 out · $2 in
Kimi K3$15 out · $3 in
Kimi K3.1 Pro Highspeed$20 out · $4 in

Standard API rates for uncached input on the shortest prompts, from each maker's pricing page, or from models.dev for models not researched here yet.

Where it works

Place	Type	Price per 1M tokens, in / out	Uptime
Moonshot AI	API host	$2 / $10	100%

Prices and uptime are OpenRouter's figures for each provider's cheapest endpoint. Uptime covers the last 24 hours.

Benchmarks

Higher is better. Green is Kimi K3.1 Pro. Dark marks are similar models.

Independent

What people say

Reviews

No reviews yet. Be the first to review Kimi K3.1 Pro.

Used Kimi K3.1 Pro? Tell other builders what worked and what did not.

Research sources

Researched Oct 31, 2026. Each section's own sources open with its Show sources button.