GLM 5.1 on AI Gateway
By Steven Van ·
Z.ai's long-horizon coding model joins Vercel AI Gateway as zai/glm-5.1, with gains in writing and office document generation.
GLM 5.1 from Z.ai is now available on Vercel's AI Gateway. Designed for long-horizon autonomous tasks, the model can work on a single task for extended periods, handling planning, execution, testing and iterative refinement in a closed loop. Rather than one-shot code generation, it runs an autonomous cycle of benchmarking, identifying bottlenecks and optimizing across many iterations, with particular strength in sustained multi-step engineering workflows.
Z.ai says GLM-5.1 also improves on general conversation, creative writing, front-end prototyping, and office tasks like generating PowerPoint, Word and Excel documents. To use it, set the model to zai/glm-5.1 in the AI SDK.
