GLM 5.1 from Z.ai is now available on Vercel's AI Gateway. The model is designed for long-horizon autonomous tasks, running continuous cycles of planning, execution, testing, and iterative refinement. It excels at sustained multi-step engineering workflows and also supports general conversation, creative writing, front-end prototyping, and office productivity tasks. Developers can access it via the AI SDK using the model identifier `zai/glm-5.1`. Vercel AI Gateway provides a unified API with usage tracking, cost monitoring, retries, failover, observability, and Bring Your Own Key support.
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