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@Zai_org

GLM-5.1 Tool Calling Issue Fix & Chat Template Update If you are running GLM-5.1 with vLLM/SGLang and using tool calling, please update your chat template. https://t.co/XyyCucws82 Issue When using tool calling, frameworks including vLLM automatically convert plain-text tool message content into an array of content parts (`[{"type": "text", "text": "..."}]`) before passing it to the chat template. The original template only supported string-formatted tool content, causing array-formatted tool outputs to render empty. As a result, the model does not receive tool results and repeatedly triggers the same tool call in a loop. Affected Models All GLM-5.1 variants deployed with vLLM or SGLang. Fix Simply replace your existing `chat_template.jinja` with the updated version from the repository.

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