moonshotai

MoonshotAI: Kimi K3.1 Pro

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...

moonshotai/kimi-k3.1-pro

Context Size

1,048.576K

Input Price

300,000 pts/M18,450 Ks/M

Output Price

1,500,000 pts/M92,250 Ks/M

Architecture

Text

Image

Video

Supported Parameters

frequency_penaltyinclude_reasoningmax_tokenspresence_penaltyreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetools

Details

TokenizerOther

Max Completion943,718 tokens

Provider Context1,048.576K tokens

ModeratedNo

CreatedOct 23, 2026