Anthropic says Zhipu's open-weight GLM-5.3 approaches Claude Mythos Preview on vulnerability exploitation
Anthropic says Zhipu's open-weight GLM-5.3 nearly matches Claude Mythos Preview at building exploits
- Who
- anthropic
- When
What happened
Anthropic published an analysis saying that Zhipu's open-weight GLM-5.3 comes close to its Claude Mythos Preview in vulnerability exploitation.
Why it matters
Anthropic and CAISI test results quantify the gap between open-weight models' cyberattack capabilities and those of frontier closed models.
Reported by 3 sources
Anthropic / ClaudeZhipu GLMOpen sourceSafety and alignmentPapers and research#Research#Safety and alignment#Open-source ecosystem#Anthropic#OpenAI#DeepSeek
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