# Glm

- [GLM-5.1: The Open-Source Model That Just Beat Everyone on SWE-bench Pro](https://sdd.sh/2026/04/glm-5.1-the-open-source-model-that-just-beat-everyone-on-swe-bench-pro.md): Z.AI released GLM-5.1 today — a 754B open-weight model under MIT license that scored 58.4% on SWE-bench Pro, beating GPT-5.4, Claude Opus 4.6, and Gemini 3.1 Pro. Its headline demo: an 8-hour autonomous session that built a complete Linux desktop environment across 655 iterations. The closed-model monopoly on frontier coding capability just got its first serious challenge.