Open model licenses grow more complex amid intensifying competition

Summary

As open-model competition intensifies in 2026, a distinct trend is emerging in licensing. Western labs (Google, Meta) are shifting toward the permissive Apache 2.0 license, while leading Chinese labs (Zhipu, Kimi, MiniMax) are adding revenue thresholds, undefined 'affiliated entity' clauses, and security review requirements. The article also covers new releases, including Motif-3, Tencent's Hy4-preview, and Qwen's 2.4T model.

Why it matters

Licensing complexity directly shapes who can build on open weights. What was once a simple 'download and use' ecosystem has become a patchwork quilt fraught with legal risks. For developers and startups, the undefined 'affiliated entity' term in the GLM-5.3 license and the ambiguity between English and Chinese versions create real adoption barriers beyond the $10 billion headline threshold. Understanding these distinctions is critical for anyone selecting a foundation model or building inference services.

Highlights

• GLM-5.3's custom license mandates a Z.AI security review for MaaS providers with revenues exceeding $10 billion; the English text fails to define 'affiliated entities.'
• GLM-5.3 was initially released on OpenRouter as the mysterious 'Ox-Alpha' model to generate organic interest before attribution.
• Tencent's Hy4-preview version shows credible progress toward high-end open models; however, it currently suffers from an 'overthinking' issue.

Critical take

The authors rightly highlight the undefined 'affiliated entity' clause and the bilingual ambiguity. However, they avoid asking whether a model that imposes arbitrary 'security review' conditions can meaningfully be called 'open.' The text also relies on a neat Western-open / Chinese-restrictive binary without fully exploring the complexity of Qwen 2.4T's proprietary license (which is also Chinese and also restrictive).