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Z.ai

GLM 5.2 Fast

GLM 5.2 Fast is a faster-serving variant of GLM-5.2, Z.ai's flagship long-horizon coding model, released June 23, 2026. Same weights and 1M tokens context, served on inference infrastructure tuned for higher throughput.

ReasoningTool UseImplicit Caching
index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'zai/glm-5.2-fast',
  prompt: 'Why is the sky blue?'
})
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