Moonshot Releases KIMI K3: The World's Largest Open-Source Model

Moonshot has just released the largest open-source model in history — KIMI K3.

> 2.8 trillion parameters
>MoE architecture with 896 experts, 16 of which are active
>1 million token context window
>Native image understanding
>New Kimi Delta Attention + Attention Residuals architecture
>Approximately 2.5 times higher scaling efficiency compared to K2
>Third most intelligent model after Fable 5 and GPT-5.6
>Outperforms Opus 4.8 MAX in real-world intellectual and knowledge-based tasks, according to the GDPval benchmark
>New SOTA result — 91.2 points in BrowseComp without context tricks

Kimi claims that K3 competes with Opus and sets a corresponding price: $3.00 per 1 million input tokens. $15.00 per 1 million output tokens.

Full open weights of the model will be published in a few days.