Moonshot LLM Big Open weights

Kimi K2.5

289 days since Moonshot announced it · 27 Jan 2026

Kimi K2.5 is an open-weights LLM from Moonshot, announced 27 Jan 2026. Its context window is 256K tokens. It has 1T parameters.

Input: —; per 1M tokens
Cache write: —; per 1M tokens
Cache read: —; per 1M tokens
Output: —; per 1M tokens
Context window: 256K; tokens
Parameters: 1T; total

No price on the lab’s own pages.

Announcement: kimi.com/en/blog/kimi-k2-5
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Moonshot's Kimi K2.5 runs 100 parallel sub-agents
13 Feb 2026
Moonshot releases Kimi K2.5 with agent swarms
27 Jan 2026

Moonshot · Big

open weights

A new one every ~87 days — due in ~67d.

Kimi K3.1 Pro +99d 23 Oct 2026
Kimi K3 +87d 16 Jul 2026
Kimi K2.6 +83d 20 Apr 2026
Kimi K2.5 +82d 27 Jan 2026
Kimi K2 Thinking +58d 6 Nov 2025
Kimi K2-0905 +60d 9 Sep 2025
Kimi K2 11 Jul 2025

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Facts last updated 1 Nov 2026, from Moonshot’s own pages.