Language model

Kimi K2

Moonshot AI

Released: July 2025

Profile

Specifications and access

Published information about this model. Existing estimates are explicitly labeled.

Specification	Value and source
Weights	Open weightsSource
Access	APISource
Parameters	1,000 billionSource
Active parameters	32 billionSource
Context window	131,072 tokensSource
License	Modified MITSource
Inputs	TextSource
Outputs	TextSource
Tool calling	YesSource