Moonshot AILaunchAI ModelsJuly 18, 2026

Moonshot AI releases Kimi K3, 2.8T open-weight MoE

Kimi K3 is a 2.8T-parameter sparse MoE with native vision and a 1M-token context window; weights and technical report released July 27. New Kimi Delta Attention and AttnRes components deliver roughly 2.5x better scaling efficiency than Kimi K2, and it ranks #1 open-weight in the Agent Arena.

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