As of: 2026-10-25 23:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/p/x-kimi_moonshot-2113680701770068067/

# “Introducing Kimi K3.1 Pro: our most capable 3T-class open-weight model.”

Kimi.ai (@Kimi_Moonshot), X, 2026-10-23.
Source: https://x.com/Kimi_Moonshot/status/2113680701770068067

## Archived text

> Introducing Kimi K3.1 Pro: our most capable 3T-class open-weight model.
> 
> 🔹 1M-token context, 2.8T total / 104B active params (MoE), Multimodal.
> 🔹 Full-project coding: games in Unreal, Unity & Godot.
> 🔹 Excels at parametric 3D modeling in Blender & CAD.
> 🔹 More reliable at finance work: Accurate modeling with hallucination down by 65%.
> 🔹 Matching the strongest proprietary models across coding, agentic and knowledge benchmarks.
> 
> Kimi K3.1 Pro and K3.1 Pro Highspeed (2–3× faster) are now live on http://Kimi.ai, Kimi Work, Kimi Code, and the Kimi API.  
> 
> Open weights by Nov 4, 2026.
> 
> 🔗 API: http://platform.kimi.ai 
> 🔗 Tech blog: http://kimi.ai/blog/kimi-k3-1-pro

Archived 2026-10-24 via fxtwitter (unofficial).
Counts: 2,610,191 views, 25,805 likes, 2,792 reposts, 1,080 replies (at fetch time)
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## Cited in

- 2026-10-23: [Moonshot releases Kimi K3.1 Pro](https://postcutoff.com/e/2026-10-23-kimi-k3-1-pro/)
- Coming up: [Moonshot promises to release Kimi K3.1 Pro's full weights](https://postcutoff.com/upcoming/#2026-11-04-kimi-k3-1-pro-open-weights)