Moonshot AI Open-Sources 2.8-Trillion-Parameter Kimi K3 Model Weights

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. Wire is Fusion42's founder-focused intelligence feed: each story is connected to the funds and startups it names — every one with a live profile on Raise or Scout — so founders can follow the capital and the momentum behind the headline rather than just the headline itself. Wire analysis is one of the live surfaces Arthur reasons over.