Moonshot AI to Open Source 2.8 Trillion Parameter Kimi K3 Weights, Chinese Open-Weight Model Token Share Rises to 68%

Chinese AI startup Moonshot AI will open the model weights for its high-performance model Kimi K3, allowing developers to download and modify the model for various purposes, as well as run it in their own data centers or cloud environments.

Kimi K3 has 2.8 trillion parameters and a 1 million Token context window, enabling it to process large-scale documents and codebases in a single pass. Moonshot AI plans to subsequently disclose the model architecture, training methodology, and performance evaluation results through a technical report.

Following the release of Kimi K3, Moonshot AI's daily revenue reportedly grew by at least six times. The company is pushing forward with a new funding round at a valuation of $50 billion and is considering a Hong Kong IPO as early as this year.

According to Bloomberg Intelligence, after the launch of Kimi K3 and Z.AI's GLM-5.2, the share of Chinese open-weight models in overall token usage has risen to 68%. Major cloud platforms such as AWS Bedrock, Microsoft Azure Foundry, and Google Vertex AI do not yet offer Chinese open-weight models like Kimi K3 and GLM-5.2.