Open weights/press release/2026-10-29

Tencent Launches Hy4 Open-Weight AI Model Amidst Alibaba Qwen4 Leaks and Open-Source Race

Tencent has officially launched its Hy4 open-weight AI model, positioning it among the world's leading open-source models. The company announced Hy4's release, highlighting its focus on defensive cybersecurity and training with limited cybersecurity data to mitigate hacking risks. This launch intensifies the ongoing open-source AI competition in China, particularly with rivals like DeepSeek, Z.ai, and Alibaba. Concurrently, information regarding Alibaba's upcoming Qwen4 series, including variants like qwen4-max, qwen4-coder-plus, and qwen4-omni-120b, has reportedly leaked from its code repository. While Tencent, a first-party source, confirmed the Hy4 launch and its open-weight status, the details surrounding Qwen4 remain unconfirmed by Alibaba, with some outlets expressing doubt about its open-source commitment. Specific technical details for Hy4, such as its 770 billion parameters and 1 million-plus token context window, were reported by tech-focused outlets, though not by Tencent directly.

14 articles from 12 outlets covered this story. Their coverage differs on 3 points. The underlying claim is sourced from a press release.

What do all outlets agree on?

12 outlets covered “Tencent Launches Hy4 Open-Weight AI Model Amidst Alibaba Qwen4 Leaks and Open-Source Race”. All of them report the following:

  • Tencent launched Hy4
  • Hy4 is an open-weight/open-source AI model
  • Hy4 focuses on defensive cybersecurity
  • Hy4 was trained with limited cybersecurity data to reduce hacking risks
  • The launch intensifies the open-source AI race in China
  • Alibaba's Qwen4 model names (qwen4-max, qwen4-coder-plus, qwen4-omni-120b) were leaked

Did outlets disagree about this?

Yes. Coverage of “Tencent Launches Hy4 Open-Weight AI Model Amidst Alibaba Qwen4 Leaks and Open-Source Race” differs on 3 points. Each account below is how a different outlet described the same event:

Qwen4's open-source commitment

Startup Fortune expresses doubt; Tech-insider.org states "0 Open Weights Confirmed"; Trending on Weibo and r/LocalLLaMA imply it's part of an open-source trend

Hy4's cost

ProPakistani claims "Extremely Low Cost"; other outlets do not specify cost

Hy4's specific technical specifications (parameters, context window)

https://tech-insider.org/ and shattered.io report 770B parameters and 1M+ token context; Tencent and other general news outlets do not provide these specific numbers

Which outlets covered this?

All 14 articles found on this story, grouped by the stance of the piece. Every link goes to the original publisher.

What related stories are there?

Which companies does this involve?

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