GLM-5 vs. AgentBench

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.

AgentBench is a dedicated evaluation platform designed to assess the performance and capabilities of autonomous AI agents. It offers a comprehensive set of benchmarks that examine various aspects of an agent's behavior, such as problem-solving abilities, decision-making strategies, adaptability, and interaction with simulated environments. Through the evaluation of agents across a range of tasks and scenarios, AgentBench allows developers to identify both the strengths and weaknesses in their agents' performance, including skills in planning, reasoning, and adapting in response to feedback. This framework not only provides critical insights into an agent's capacity to tackle complex situations that mirror real-world challenges but also serves as a valuable resource for both academic research and practical uses. Moreover, AgentBench significantly contributes to the ongoing improvement of autonomous agents, ensuring that they meet high standards of reliability and efficiency before being widely implemented, which ultimately fosters the progress of AI technology. As a result, the use of AgentBench can lead to more robust and capable AI systems that are better equipped to handle intricate tasks in diverse environments.