Kimi LinearOpen Weight

Kimi Linear was released by Moonshot AI on Thursday, Oct 30 2025.

Kimi Linear was built by Moonshot AI. Chinese AI company building the Kimi family of models. Founded in 2023, known for long-context and efficient MoE architectures.

Kimi Linear is reported at 48B parameters.

Partly. Kimi Linear is an open-weight model: the trained weights are free to download and run locally or on your own infrastructure, but the training data and code are not fully released and the license may restrict some commercial uses. It is not open source in the strict sense.

Moonshot AI's previous tracked release was Kimi K2 (0905) on Sep 5 2025, 55 days earlier. It was followed by Kimi K2 Thinking on Nov 6 2025.