OpenEuroLLM vs. GLM-5

OpenEuroLLM embodies a collaborative initiative among leading AI companies and research institutions throughout Europe, focused on developing a series of open-source foundational models to enhance transparency in artificial intelligence across the continent. This project emphasizes accessibility by providing open data, comprehensive documentation, code for training and testing, and evaluation metrics, which encourages active involvement from the community. It is structured to align with European Union regulations, aiming to produce effective large language models that fulfill Europe’s specific requirements. A key feature of this endeavor is its dedication to linguistic and cultural diversity, ensuring that multilingual capacities encompass all official EU languages and potentially even more. In addition, the initiative seeks to expand access to foundational models that can be tailored for various applications, improve evaluation results in multiple languages, and increase the availability of training datasets and benchmarks for researchers and developers. By distributing tools, methodologies, and preliminary findings, transparency is maintained throughout the entire training process, fostering an environment of trust and collaboration within the AI community. Ultimately, the vision of OpenEuroLLM is to create more inclusive and versatile AI solutions that truly represent the rich tapestry of European languages and cultures, while also setting a precedent for future collaborative AI projects.

GLM-5 is Z.ai’s most advanced open-source model to date, purpose-built for complex systems engineering, long-horizon planning, and autonomous agent workflows. Building on the foundation of GLM-4.5, it dramatically scales both total parameters and pre-training data while increasing active parameter efficiency. The integration of DeepSeek Sparse Attention allows GLM-5 to maintain strong long-context reasoning capabilities while reducing deployment costs. To improve post-training performance, Z.ai developed slime, an asynchronous reinforcement learning infrastructure that significantly boosts training throughput and iteration speed. As a result, GLM-5 achieves top-tier performance among open-source models across reasoning, coding, and general agent benchmarks. It demonstrates exceptional strength in long-term operational simulations, including leading results on Vending Bench 2, where it manages a year-long simulated business with strong financial outcomes. In coding evaluations such as SWE-bench and Terminal-Bench 2.0, GLM-5 delivers competitive results that narrow the gap with proprietary frontier systems. The model is fully open-sourced under the MIT License and available through Hugging Face, ModelScope, and Z.ai’s developer platforms. Developers can deploy GLM-5 locally using inference frameworks like vLLM and SGLang, including support for non-NVIDIA hardware through optimization and quantization techniques. Through Z.ai, users can access both Chat Mode for fast interactions and Agent Mode for tool-augmented, multi-step task execution. GLM-5 also enables structured document generation, producing ready-to-use .docx, .pdf, and .xlsx files for business and academic workflows. With compatibility across coding agents and cross-application automation frameworks, GLM-5 moves foundation models from conversational assistants toward full-scale work engines.