---
title: "The Battle For The Future Of AI: Open-Source Models 101"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/293350810.md"
description: "AI-related stocks tumbled at the end of last week on a second 'DeepSeek moment', as the latest Chinese open-weight AI model (Mooshot AI's Kimi K3) reminded investors that cheap, light alternatives are snapping at the heels of the state-of-the-art proprietary models.\"This Is Concerning\": Why Everyone Is Freaking Out About China's Kimi K3 Model1. Open-what?A new twist on age-old format wars"
datetime: "2026-07-21T13:40:49.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/293350810.md)
  - [en](https://longbridge.com/en/news/293350810.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/293350810.md)
generator: "portal-rs"
---

# The Battle For The Future Of AI: Open-Source Models 101

AI-related stocks tumbled at the end of last week on **a second 'DeepSeek moment'**, as the latest Chinese open-weight AI model (Mooshot AI's Kimi K3) reminded investors that cheap, light alternatives are snapping at the heels of the state-of-the-art proprietary models.

*"This Is Concerning": Why Everyone Is Freaking Out About China's Kimi K3 Model*

## 1\. Open-what?A new twist on age-old format wars

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---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**