Moonshot launches Kimi K3.1 Pro

Moonshot AI released Kimi K3.1 Pro and its faster Highspeed variant through its apps, coding tools and API. Moonshot says the 3T-class model supports a million-token context; downloadable weights were promised by November 4.

Availability and evidence

Moonshot released Pro and Highspeed through Kimi, Kimi Work, Kimi Code and its API. Its Chinese announcement and contemporary PC Watch report place the launch on October 24 in China; some English reporting uses October 23. The local date follows the primary record. [1][2]

Moonshot described a 3T-class model with a million-token context and improvements in coding, 3D creation and financial research. Those capability claims are vendor reporting. Downloadable weights were promised by November 4, so this entry records hosted availability without treating the launch as a weight release. [1]

Sources

  1. Kimi K3.1 Pro:智能前沿,更进一步

    Moonshot AI · Oct 24, 2026

  2. Opus 5.5肉薄のコーディング性能、3Dも作る3兆級LLM「Kimi K3.1 Pro」。11月4日までにオープンウェイト化

    PC Watch · Oct 24, 2026