# Z.ai Releases GLM 5.2 as US Restricts Anthropic Models > Source: > Published: 2026-07-07 05:30:00+00:00 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.