Z.ai's most capable model for complex coding, multi-step agentic work, and deep reasoning - with a 1M-token context window.
GLM 5 is the flagship generation of Z.ai's GLM model family. It is built for demanding work: writing and refactoring large amounts of code, planning and executing multi-step tasks, and reasoning through difficult technical problems.
With a context window of up to 1 million tokens, GLM 5 can keep entire repositories, long specifications, or large document sets in view at once. A built-in thinking mode lets it reason step by step before answering.
Yes, you can chat with GLM for free on chatai.org. No registration required.
Complex coding, multi-step agentic tasks, and technical reasoning are its main strengths.
Yes. GLM 5 can reason step by step before answering, which helps on hard math, logic, and coding problems.
Up to 1 million tokens - enough for whole repositories or very long documents.
GLM 5 is the more capable flagship for demanding tasks. GLM 5 Flash is faster and lighter, made for everyday questions.
GLM 5 is developed by Z.ai (formerly Zhipu AI), an AI company founded by researchers from Tsinghua University.