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?'})Providers
Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.
| Provider |
|---|
 Wafer | 1M | 1.8s | 193tps | $3.00/M | $10.25/M | Read:$0.5/M Write:— | — | — | +1 | 06/23/2026 | ||
 Fireworks | 1M | 1.1s | 207tps | $2.10/M | $6.60/M | Read:$0.21/M Write:— | — | — | +1 | 06/23/2026 |