Kimi K3.1 Pro

Open weights by Moonshot

Kimi K3.1 Pro: Moonshot's newest open model and the first of the K3.1 series, post-trained from Kimi K3 and served from the official Kimi-K3.1-Pro open weights.

Get an API key Live status

Price per 1M tokens: $2.00 in$10.00 out; $0.20 cache read
Context: 1M; 128K max output
Weights: Open weights; On Hugging Face

Vision
Tool calling
Reasoning optional, default max

How it ranks

Against every model we serve, best first. Starred scores are reported by the publisher on its model card; the rest are independent measurements. About the scores

Artificial Analysis Intelligence Index v4.3by Artificial Analysis

DeepSeek V4.1 Flash45
GLM 5.345
Kimi K344

Not published: Kimi K3.1 Pro.

DeepSWEby Datacurve

DeepSeek V4.1 Flash77%^{* reported by the publisher}
GLM 5.369%
Kimi K368.5%

Not published: Kimi K3.1 Pro.

Terminal-Bench 2.1by tbench.ai

DeepSeek V4.1 Flash90.6%^{* reported by the publisher}^{† measured before the 1017 update}
Kimi K385%
GLM 5.383.9%

† DeepSeek V4.1 Flash: measured on its previous weights, before the 1017 update. No 2.1 score yet for 1017; on Terminal-Bench 4.0 the update took it from 26.8% to 33.8% (Artificial Analysis).

Not published: Kimi K3.1 Pro.

Pricing

Input: $2.00 per 1M tokens
Output: $10.00 per 1M tokens
Cache read: $0.20 per 1M tokens

See all prices

Specs

Context window: 1M tokens
Max output: 128K tokens
Vision: Yes
Tool calling: Yes
Reasoning: Adjustable (none, low, high, max)
Default effort: max
Weights: On Hugging Face
In production since: November 6, 2026

Quickstart

Pick your tool; the command already carries this model's id. More tools (Pi, Copilot, Zed, omp) in the setup guides.

OpenCode

Built in

Launch OpenCode on this model with the umans CLI. Umans AI is also built into OpenCode: run /connect and pick it.

Terminal

curl -fsSL https://api.code.umans.ai/cli/install.sh | bash   # once
umans opencode --model umans-kimi-k3.1-pro

Full setup in the docs

How it ranks

Pricing

Specs

Quickstart

Or consider