Chinese AI lab Moonshot AI is launching one of the largest open weights models yet with its 2.8 trillion-parameter Kimi K3, putting it on par with frontier counterparts.
The model was unveiled Thursday alongside benchmark data showing it is just a generation behind Anthropic and OpenAI’s leading models in most tests and on par with or ahead for some coding and agentic applications.
Moonshot said structural changes, including the use of its new Kimi Delta Attention mechanism and Attention Residuals architecture, meant Kimi K3 showed a 2.5x improvement in scaling efficiency over its predecessor, Kimi K2.
Get the full story: Subscribe for free #
Join peers managing over $100 billion in annual IT spend and subscribe to unlock full access to The Stack’s analysis and events.
[Subscribe now](https://www.thestack.technology/membership/)
Already a member? [Sign in](https://www.thestack.technology/signin/)
source & further reading
thestack.technology — original article
Re-nationalised Bull wins $450m EU supercomputing contract
Runtime: The Tau of Glean
Pentagon's Anthropic ban deemed "illegal and baseless"