# Moonshot AI Launches Strongest Open-Source AI Model Kimi K3

- Category: Flash (快讯)
- Published: 2026-07-17T12:00:00.000Z
- Source date: 2026-07-17
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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

- [月之暗面 Kimi](https://mp.weixin.qq.com/s/V4xhEIy8xDXSMDPrPkmUAQ) (2026-07-17)

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.