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Moonshot AI Open-Sources 2.8-Trillion-Parameter Kimi K3 Model Weights
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Fusion42 · 28 July 2026 · Fusion42 review
Moonshot AI open-sourced Kimi K3, a 2.8-trillion-parameter foundation model with frontier-tier reasoning capabilities at half the inference cost of OpenAI's GPT-5.6 Sol. The release shifts enterprise AI architecture toward hybrid deployment strategies combining localised model hosting with proprietary systems.
This Wire brief sits within Fusion42's coverage of AI Frontier Models, and 34 sources have reported it between 18 Jul 2026 and 7 Aug 2026.
◆ ◆ The Wire takeaway
Frontier-grade open-weights models now cost half as much to run as closed APIs, forcing enterprise AI architects to choose between subscription vendors and self-hosted inference. If you sell to enterprises that embed AI into their product, your pricing model just broke.
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34 sources · first reported 18 Jul 2026 · latest 7 Aug 2026
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