Kimi K3.1 Pro model weights released
The gist
Moonshot AI says it will publish full Kimi K3.1 Pro weights by Nov 4, 2026.
The drop would make a 2.8-trillion-parameter model downloadable, shifting safety scrutiny to outside testers.
How it unfolded
- Oct 23, 2026Moonshot AI released Kimi K3.1 Pro through its API, the first model in its new K3.1 series, alongside a faster companion variant called Kimi K3.1 Pro Highspeed. The lab said weights would follow by November 4.
- Oct 28, 2026Artificial Analysis published its Intelligence Index v5 update; Kimi K3.1 Pro fell from 4th place to 9th.
- Oct 29, 2026Forkast reported Moonshot's page still promised full weights by Nov 4, 2026, and that no official Hugging Face repository existed yet, only a third-party derivative created October 23.