Kimi K3.1 Pro Is The Strongest Open-Weight Model Yet, Matching Opus 5.5 And GPT-6 Astra
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Kimi K3.1 Pro Is The Strongest Open-Weight Model Yet, Matching Opus 5.5 And GPT-6 Astra
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Kimi K3.1 Pro is a 2.8T-parameter open-weight model ranked fourth on the Artificial Analysis Intelligence Index.
- 01. 2.8T total / 104B active MoE, 1M context, image input
- 02. Fourth on AA Intelligence Index; $2/$10; weights by Nov 4
Moonshot has released Kimi K3.1 Pro, a mixture-of-experts model with 2.8 trillion total parameters and 104 billion active, a million-token context and image input. Moonshot says it builds full game projects in Unreal and Unity, creates parametric 3D models in Blender and CAD, and hallucinates 65% less on finance work. On Moonshot's numbers it scores 65.7% on Terminal-Bench 4.0, and Artificial Analysis puts it fourth on its Intelligence Index, highest of any open-weight model. API pricing is $2/$10 per million tokens; open weights arrive by November 4.
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