GLM-5.1 Reportedly Beats Claude Opus 4.6 on Cybersecurity

Melvin Vivas · X post · 2026-04-08 · Open on X

Topics: Industry Trends & Job Market, LLM Fundamentals · Level: beginner

Summary

A one-line claim that the open-source GLM-5.1 model beats Claude Opus 4.6 on a cybersecurity benchmark. No source or numbers are given. It's a sign that open models are catching up with closed frontier models.

Key points

• GLM-5.1 is claimed to beat Claude Opus 4.6 on cybersecurity tasks.
• No benchmark name or scores are given, so check the official GLM-5.1 release before relying on the claim.

Resources mentioned

• GLM-5.1 · tool · huggingface.co · free
  Open-source large language model from Z.ai (Zhipu), built for coding and long-running agent tasks.
  Also in: GLM-5.1 vs Claude Code (Opus 4.6): One-Shot Three.js Racing Game Eval (Melvin Vivas on X · notes), Open-Source GLM-5.1 Beats GPT-5.4 on SWE-Bench Pro (Melvin Vivas on X · notes), GLM-5.1: Open-Source Model for Long-Running Coding Agents (Melvin Vivas on X · notes), GLM-5.1 Now Available on the GLM Coding Plan (Melvin Vivas on X · notes)
• Claude Opus 4.6 · tool · anthropic.com · paid
  Anthropic's Claude Opus model, version 4.6, which Claude Code was running in this comparison.
  Also in: GLM-5.1 vs Claude Code (Opus 4.6): One-Shot Three.js Racing Game Eval (Melvin Vivas on X · notes), MiniMax 2.7 One-Shots a Linear Clone at 95% Lower Cost (Melvin Vivas on X · notes), When one coding model gets stuck, switch to another (Melvin Vivas on X · notes), Codex 5.3 vs Claude Opus 4.6 Side by Side in Cursor (Melvin Vivas on X · notes)