Anthropic warns Z.ai GLM-5.3 has strong hacking ability, weak safeguards
Anthropic warned that Z.ai's open-weight GLM-5.3 nearly matches its most advanced model in cyber capabilities but has far weaker safety constraints. Anthropic said this raises the risk of misuse by bad actors.
First seen 23 Sep, 21:40 UTC on OpenRouter6 sourcesLast update 20d ago
Z.aiResearch · 23 Sep
New model
What the sources say
Linked, never rewritten. Official means the lab itself.
Official0
No word from Z.ai yet.
Press2
OpenRouter· 23 Sep, 21:40Z.ai: GLM 5.3 Prime listed on OpenRouterSouth China Morning Post, Tech· 30 Sep, 12:00Anthropic raises alarm over elite hacking ability of Chinese firm Z.ai's GLM-5.3Community4
r/singularity· 27 Sep, 02:09GLM-5.3-Flash works as a Jev-like decision model with the same accuracy and speedr/ClaudeAI· 29 Sep, 19:53Anthropic says a Chinese AI model anyone can download can now build working hacks on its ownr/LocalLLaMA· 30 Sep, 09:22add GLM-5.3-Flash (GLM5-Next) support by timkhronos · Pull Request #27773 · ggml-org/llama.cppr/LocalLLaMA· 30 Sep, 12:41add GLM-5.3-Flash (GLM5-Next) support (#27773) · ggml-org/llama.cpp@649dcb1How it unfolded
Every source in the order it appeared. Times in UTC.
23 Sep 21:40OpenRouter Z.ai: GLM 5.3 Prime listed on OpenRouter27 Sep 02:09r/singularity GLM-5.3-Flash works as a Jev-like decision model with the same accuracy and speed29 Sep 19:53r/ClaudeAI Anthropic says a Chinese AI model anyone can download can now build working hacks on its own30 Sep 09:22r/LocalLLaMA add GLM-5.3-Flash (GLM5-Next) support by timkhronos · Pull Request #27773 · ggml-org/llama.cpp30 Sep 12:00South China Morning Post, Tech Anthropic raises alarm over elite hacking ability of Chinese firm Z.ai's GLM-5.330 Sep 12:41r/LocalLLaMA add GLM-5.3-Flash (GLM5-Next) support (#27773) · ggml-org/llama.cpp@649dcb1
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