Moonshot AI's Kimi K3.1 Pro: a claimed 3T-parameter open model, on a fan-blog relay only
From the AI digest for 2026-10-23
What happened: A note.com post (published October 23, ~4:00 PM Eastern) reports that China's Moonshot AI announced a new model, Kimi K3.1 Pro, the morning of October 24 Japan time — evening of October 23 US Eastern — describing it as a 3-trillion-parameter-class open model whose standing, in the post's reading, approaches Anthropic's Opus 5.5.
What's genuinely new: First appearance of a Kimi K3.1 Pro release — on the weakest possible footing. The capture is a personal-blog summary, not Moonshot's announcement: no primary link, benchmark figures, weights-availability terms, or pricing appear in the window. Treat the launch as claimed, not confirmed, until Moonshot's own post or a tier-1 relay surfaces.
Watch: Moonshot's primary announcement; benchmark and pricing detail; whether the open-model framing holds; how K3.1 Pro scores against the frontier tier.
Links: note.com