88Z AI, 17 July — Moonshot AI releases Kimi K3, the world's first open-source model in the 3-trillion parameter class with 2.8 trillion parameters, supporting a million-token context window and native visual understanding, with leading performance in multiple benchmarks.
At a glance
- Kimi K3 is the world's first open-source model in the 3-trillion parameter class, featuring 2.8 trillion parameters and a million-token context window.
- In benchmarks for coding and agents, Kimi K3 shows cutting-edge performance, surpassing GPT-5.6 Sol and Claude Fable 5 in some areas.
The update
Moonshot AI has officially launched Kimi K3, its most powerful AI large model to date. With 2.8 trillion parameters, it becomes the world's first open-source model to enter the 3-trillion parameter class. Technically, Kimi K3 is built on the KDA hybrid linear attention mechanism and attention residual technology, featuring native visual understanding and supporting an ultra-long context window of up to 1 million tokens. In multiple key capability benchmarks, Kimi K3 demonstrates cutting-edge technical levels. Especially in areas such as programming, general agents, visual agents, and knowledge work, its performance is outstanding. In some test items, it even surpasses GPT-5.6 Sol and Claude Fable 5, marking a significant breakthrough in the ability of open-source models to handle complex tasks.
Sources & editorial note
This article is an AI-assisted synthesis by 88Z AI based on the public sources below. Product claims and availability are attributed to their publishers. It does not represent independent testing or first-hand reporting.
- 月之暗面 KimiSource published
Source dates above refer to the original announcements; the date under the headline is this article’s publication on 88Z AI.