Liquid AI vs. GLM-5.3

At Liquid, our goal is to create sophisticated AI systems capable of tackling a wide range of challenges, allowing users to effectively build, use, and oversee their own AI solutions. This dedication ensures the integration of AI into all businesses is done in a seamless, reliable, and efficient manner. Looking ahead, Liquid seeks to design and deploy state-of-the-art AI solutions that are available to everyone, promoting inclusivity in technology. Our methodology emphasizes the development of transparent models in organizations that prioritize openness and clarity. We hold the conviction that such transparency cultivates trust and spurs innovation within the realm of AI, ultimately benefiting society as a whole. By fostering an environment of collaboration and shared knowledge, we believe we can unlock the full potential of AI for diverse applications.

GLM-5.3 is Z.ai’s frontier coding model built to improve complex software engineering, long-horizon agent work, and advanced technical reasoning through scaled post-training. The model uses the same base model as GLM-5.2, with performance gains coming from additional post-training environments, more diverse tasks, and expanded compute on the existing training stack. Z.ai’s stack includes IndexShare for efficient long-context processing, SAO for reinforcement learning on long-horizon tasks, and slime for large-scale asynchronous post-training. GLM-5.3 is designed to perform better on work that resembles real engineering tasks rather than short coding exercises. Its training environments include production-style workflows where the model must diagnose bottlenecks, inspect documentation, use codebases, run experiments, implement changes, and produce measurable improvements. The model improves coding performance across public and private benchmarks, including Terminal Bench 3.0, DeepSWE, Agents’ Last Exam, and Z.ai Code Bench. GLM-5.3 also improves token efficiency, producing stronger agentic coding results than GLM-5.2 while using fewer output tokens in Z.ai’s internal evaluations. The model supports three reasoning effort levels, low, high, and max, and no longer supports disabling thinking. Z.ai recommends max reasoning effort for coding tasks, while applications using disabled thinking must migrate to enabled thinking before switching to GLM-5.3. The release also reports emergent cyber capabilities, including stronger vulnerability discovery and exploitation-chain reasoning, with open-weight release planned after safety evaluation and hardening. By combining scaled post-training, long-context infrastructure, long-horizon reinforcement learning, coding-agent workflows, benchmark improvements, reasoning controls, and ZCode integration, GLM-5.3 helps developers and researchers work on demanding coding and agentic tasks.