India, July 19 -- Kimi K3 is the new open source open weights model from Moonshot AI, in China. It is the largest model available to download at 2.8 T parameters.

Kimi K3 has a 1 million context window, and has improved vision and coding capabilities, on par with GPT 5.6 Sol and Claude Fable 5 in benchmarks, even beating it across some examples! You can download this to your own PC.

Kimi K3 is built on the Kimi Delta Attention (KDA), a hybrid linear attention mechanism, and Attention Residuals, with native visual understanding and a 1M-token context window. It is the world's first open-source model in the 3-trillion-parameter class, designed for frontier intelligence scenarios including long-horizon coding, knowledge work, and reasoning...