M

Moonshot: kimi-k3.1-pro

kimi-k3.1-pro
1M context943.7K outReasoningToolsVisionVideoCacheStructured
Released Oct 23, 2026Knowledge cutoff Dec 2025Updated Oct 24, 2026

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. It is built for long-horizon coding, 3D creation, financial research, and end-to-end agentic knowledge work, with native image and video understanding.

Mode chatTokenizer OtherQuantization mxfp4

Inputs used for the providers' own purposes

At least one provider of this model uses your inputs for its own purposes, for example to train AI models. Do not enter personal data of third parties or sensitive data. You can object to this use at any time in your account settings or via "Manage consents" in the chat.

Read the privacy policy

Pricing

Input price
$0.43/ 1M tokens78% off
Output price
$2.15/ 1M tokens78% off
Compatible endpoints openaiVendor Moonshot

Uptime

Performance

Loading performance data...

Usage & Ranking

Loading usage...

Supported parameters

All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.

ParameterProvidersDefault
frequency_penaltyAll providers-
include_reasoningAll providers-
max_tokensAll providers-
presence_penaltyAll providers-
reasoningAll providers-
reasoning_effortAll providers-
response_formatAll providers-
stopAll providers-
structured_outputsAll providers-
tool_choiceAll providers-
toolsAll providers-
top_pSome providers0.95

Frequently asked questions

Similar models