Z.ai releases open-weight GLM-5.3, beating proprietary rivals on agentic benchmarks
GLM-5.3 hit 84.5% on the CyberGym vulnerability benchmark and scored 60 on the Artificial Analysis Intelligence Index, tying top open-weight models. It beats GPT-5.6 Sol and Claude Fable 5 on agentic benchmarks with a low hallucination rate. Available via HuggingFace and Perplexity Agent API.
How this story unfolded
3 weeks · 15 reports · 40 community posts · 55 of 59 shown
- Aug 14
Z.ai Ships GLM-5.3 Without Retraining the Base Model: Better at Complex Coding and Long-Horizon Tasksmarktechpost.com
GLM-5.3 didn’t change the base model — where did its coding gains come from?thenewstack.io
GLM-5.3: How Chinese labs keep stride with the frontierinterconnects.ai
GLM-5.3 is here with advanced cyber capabilities — and reportedly already found a 'serious vulnerability' in Cursorventurebeat.com
- Aug 15
- Aug 16
- Aug 18
- Aug 19
GLM-5.3 achieves 60 on the Artificial Analysis Intelligence Index, on par with Kimi K3 and up 7 points from GLM-5.2. Once the weights are released it will be tied as the leading open weights model
- Aug 28
- Aug 29
- Aug 30
- Aug 31
- Sep 1
- Sep 2
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