{"slug": "z-ai-releases-glm-5-2-as-us-restricts-anthropic-models", "title": "Z.ai Releases GLM 5.2 as US Restricts Anthropic Models", "summary": "The US Commerce Department on June 12, 2026 ordered Anthropic to suspend access to its Fable 5 and Mythos 5 models globally over a jailbreak risk, prompting Chinese lab Z.ai to release open-weight GLM-5.2 under an MIT license the same day. The US lifted controls by July 1, but Anthropic's relaunch sparked controversy when developers discovered an internal tag routing some requests to cheaper Opus 4.8 without disclosure, while GLM-5.2 gains traction with US enterprises.", "body_md": "The US Commerce Department directed Anthropic on **June 12, 2026** to suspend all access to **Fable 5 and Mythos 5** for foreign nationals worldwide, citing a possible jailbreak of the models' safeguards; Anthropic disabled both models globally the next day rather than build a US-only version. Chinese lab Z.ai released its open-weight **GLM-5.2** model under an MIT license that same day, explicitly framing the launch as proof that open weights cannot be pulled back once downloaded. The US lifted the export controls by July 1 and Fable 5 returned globally, but the relaunch triggered fresh controversy: developers found an internal tag quietly routing some requests to the cheaper **Opus 4.8** without disclosure, reviving trust concerns even as GLM-5.2 keeps gaining traction with cost-conscious US enterprise users.", "url": "https://wpnews.pro/news/z-ai-releases-glm-5-2-as-us-restricts-anthropic-models", "canonical_source": "https://letsdatascience.com/news/zai-releases-glm-52-as-us-restricts-anthropic-models-7fe0d44d", "published_at": "2026-07-07 05:30:00+00:00", "updated_at": "2026-07-07 06:35:01.056097+00:00", "lang": "en", "topics": ["ai-safety", "ai-policy", "large-language-models", "ai-ethics", "ai-products"], "entities": ["US Commerce Department", "Anthropic", "Z.ai", "GLM-5.2", "Fable 5", "Mythos 5", "Opus 4.8"], "alternates": {"html": "https://wpnews.pro/news/z-ai-releases-glm-5-2-as-us-restricts-anthropic-models", "markdown": "https://wpnews.pro/news/z-ai-releases-glm-5-2-as-us-restricts-anthropic-models.md", "text": "https://wpnews.pro/news/z-ai-releases-glm-5-2-as-us-restricts-anthropic-models.txt", "jsonld": "https://wpnews.pro/news/z-ai-releases-glm-5-2-as-us-restricts-anthropic-models.jsonld"}}