{"slug": "z-ai-launches-glm-5-3-with-claimed-50-gain-on-coding-benchmark", "title": "Z.ai launches GLM-5.3 with claimed 50% gain on coding benchmark", "summary": "Z.ai, the international brand of Chinese AI company Zhipu, launched GLM-5.3, an update focused on coding, long-horizon tasks, and cybersecurity, claiming a 50% higher score than GLM-5.2 on its internal Z.ai Code Bench. The model, based on the same base model as GLM-5.2, also achieved leading open-source results on Terminal-Bench 3.0 and Agents’ Last Exam, with weights to be released two weeks after launch following additional safety evaluation.", "body_md": "Z.ai, the international brand of Chinese AI company Zhipu, has launched GLM-5.3, an update focused on coding, long-horizon tasks and cybersecurity. The model uses the same base model as GLM-5.2, with the company attributing the latest gains to post-training.\n\nZ.ai said GLM-5.3 scored 50% higher than GLM-5.2 on its internal Z.ai Code Bench and reached leading open-source results on Terminal-Bench 3.0 and Agents’ Last Exam. It also reported stronger vulnerability-discovery and exploitation performance, and said the model weights will be released two weeks after launch following additional safety evaluation. [[Z.ai](https://z.ai/blog/glm-5.3)]", "url": "https://wpnews.pro/news/z-ai-launches-glm-5-3-with-claimed-50-gain-on-coding-benchmark", "canonical_source": "https://technode.com/2026/08/17/z-ai-launches-glm-5-3-with-claimed-50-gain-on-coding-benchmark/", "published_at": "2026-08-17 05:58:14+00:00", "updated_at": "2026-08-17 06:11:44.380604+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-research", "ai-products"], "entities": ["Z.ai", "Zhipu", "GLM-5.3", "GLM-5.2", "Z.ai Code Bench", "Terminal-Bench 3.0", "Agents’ Last Exam"], "alternates": {"html": "https://wpnews.pro/news/z-ai-launches-glm-5-3-with-claimed-50-gain-on-coding-benchmark", "markdown": "https://wpnews.pro/news/z-ai-launches-glm-5-3-with-claimed-50-gain-on-coding-benchmark.md", "text": "https://wpnews.pro/news/z-ai-launches-glm-5-3-with-claimed-50-gain-on-coding-benchmark.txt", "jsonld": "https://wpnews.pro/news/z-ai-launches-glm-5-3-with-claimed-50-gain-on-coding-benchmark.jsonld"}}