27-07-2026 22:43 via theregister.com

Impostor Chinese models pretend they're Claude

Raising suspicion about their training methods, Z.ai's GLM 5.2 and Moonshot AI's Kimi K3 have used the name "Claude" in some conversations and, for GLM, at least, changed behaviors slightly when posing as Anthropic's model. The Chinese open weight models may adopt Claude's persona if prompted to do so, or even without being told so, but a claimed identity isn't always reflected in behavior due to training differences. So if model copying did occur – as claimed by the US – Claude's in
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