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...

kimi-k3.1-pro

Pricing

~95%

Input: $0.101873 / 1,000,000 tokens
Output: $0.509365 / 1,000,000 tokens
Cache read: $0.010187 / 1,000,000 tokens
Cache write: $0.101873 / 1,000,000 tokens

How pricing works

Discount history

94.9%Nov 8, 03:56 AM UTC

Nov 7, 11:57 PMNov 8, 03:56 AM UTC

Model details

Input: text, image, video
Output: text
Context window: 1,048,576 tokens
Maximum output: 524,288 tokens
Availability: $299.4Uncapped capacity
Updated: 11/8/2026, 3:58:06 AM UTC

Capacity is reserved when your request is accepted.

Capabilities

ChatStreamingVisionTool callingReasoningJSON mode

Supported parameters

frequency_penaltyinclude_reasoningmax_tokenspresence_penaltyreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetools