Moonshot releases Kimi K3.1 Pro, a 2.8T-param open-weight model
Read original source →kimi.ai
Kimi K3.1 Pro is a 2.8T total / 104B active MoE with a 1M-token context window, priced at $2/M input and $10/M output — half of Claude Opus 5.5. It scored 55 on the Artificial Analysis Intelligence Index, 4th overall and behind only Opus 5.5 (58). Weights are promised by Nov 4, 2026.
22 sources
Introducing Kimi K3.1 Pro: Advancing Open Intelligencekimi.ai
Introducing Kimi K3.1 Prosimonwillison.net
Kimi K3.1 Pro and Kimi K3.1 Pro Highspeed are available now in AI Gatewayvercel.com
Kimi K3.1 scores 55 on Artificial Analysis, placed on the Pareto lineartificialanalysis.ai
Meet Kimi K3.1 Pro, our most capable 3T-class model.x.com
TLDR on the kimi k3.1 pro benchmarks (just released) is that it looks like they figured out their RL...bsky.app
Kimi K3.1 Pro rolling out nowreddit.com
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