SGLang says it is working with @zai_org and partners to harden production serving for the GLM-5.3 family. After community and Cloudflare reports, chat-template tool-result reordering now early-exits instead of scanning every block; GLM-5.3 and GLM-5.3-Flash templates are updated and live—material for tool-calling coding-agent stacks.

Key Takeaways

  • ✓Production: SGLang partnering with Z.ai on GLM-5.3 family serving.
  • ✓Fix: tool-result reorder now early-exits instead of scanning every block.
  • ✓Coverage: GLM-5.3 and GLM-5.3-Flash templates updated live; Cloudflare helped surface the issue.
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