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steve hsu (@hsu_steve) on X
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steve hsu (@hsu_steve) on X

Tweet relaying Anthropic's finding that GLM-5.3 is "the most cyber-capable open-weight model released to date," trailing the US frontier by roughly four months on an aggregate of CAISI's cyber benchmarks. It also cites a 64-100% jailbreak success rate against the model's safeguards, with the poster arguing this favors faster-deploying defenders over attackers.

TL;DR Anthropic says GLM-5.3 is the most cyber-capable open-weight model yet (~4 months behind the US frontier on CAISI benchmarks) and jailbreaks it 64-100% of the time.
Also seen from another angle🧠 AI →

Organisations named here

  • CAISI

Technologies named here

  • GLM-5.3
  • GLM
  • Anthropic

Techniques named here

  • Jailbreaking