Moonshot Kimi K3 Open-Weight Release: 2.8T Parameter MoE Model on Hugging Face

Moonshot AI

Models / LLM official + media 4 src. ~1 min

Moonshot AI released Kimi K3 on Hugging Face on July 26-27, 2026: a 2.8-trillion-parameter sparse MoE model with a 1-million-token context window and native text/image/video multimodal input. At 1.4TB with MXFP4 quantization, it is the largest open-weight model released to date, priced at $3/$15 per million tokens via API; demand reportedly forced Moonshot to temporarily suspend new API subscriptions.

Why it matters

First mega-scale (2.8T-parameter) open-weight model from a leading Chinese lab, narrowing the gap with proprietary frontier models while letting organizations self-host for data sovereignty instead of relying on US APIs.

Importance: 5/5

Largest open-weight model ever released + 4 independent confirmations.

open-weights moe china 1m-context multimodal moonshot-ai kimi-k3

Sources

official Kimi K3 Model Release

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