Outside CVP/Daybreak, the world's best cybersecurity model is Chinese GLM 5.3, not Claude
zephyr_z9 · x · 2026-10-11
Jordan Nanos argues that due to safety classifiers, Anthropic's cybersecurity models (Mythos, Fable, Astra, Opus, Sol) get downgraded outside the CVP/Daybreak programs, leaving GLM 5.3 as the de facto best cybersecurity model available — first, not sixth. Even enrolled users face frequent classifier downgrades and rejections.
He flags big downstream implications: open research biased toward GLM's capability frontier, production traces flowing to ZAI, and more tooling built around open models generally.
More from Models
- JevBench creator explains why open and API models get separate leaderboards: fairness — airesearch12 · 2026-10-11
- Codebase test: Telnyx-hosted GLM runs 9% cheaper, 5% faster than OpenAI — SucceededMind · 2026-10-11
- Nous Research launches stealth coding and agentic reasoning model, free for limited time — Teknium · 2026-10-11
- I published 50,000 fake stats and ChatGPT still cites them, earning 10k+ AI sessions — metehan777 · 2026-10-11
- Haiku fails 15 of 17 agent runs on output format, deemed no upgrade over Luna — zeeg · 2026-10-11
- Users report Astra performance sharply degraded in recent days, images too — pwlot · 2026-10-11