The Korean Telecom Giant at the Center of Anthropic’s Mythos Controversy
AI disclosure
Summary
Days before Anthropic took its most advanced AI models offline, the White House ordered the company to revoke SK Telecom’s access to Claude Mythos over claims of alleged ties to China.
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A standout number in Z ai’s GLM-5.2 launch is CritPt, a benchmark of unpublished research-level physics problems where it ties with Claude Opus 4.8 and is well above other open weights models
— Artificial Analysis (@ArtificialAnlys) June 17, 2026
Key takeaways:
➤ @Zai_org ’s GLM-5.2 (max reasoning effort) leads open weights by a… pic.twitter.com/FQ00mDYTdn