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?'})More models by Z.AI
| Model |
|---|
| 1M | 0.7s | 153tps | $0.95/M | $3/M | Read:$0.18/M Write:— | — |    +4 | 06/16/2026 | ||||
| 205K | 0.5s | 105tps | $1.30/M | $4.30/M | Read:$0.26/M Write:— | — | +3 | 04/07/2026 | ||||
| 200K | 2.8s | 110tps | $1.20/M | $4/M | Read:$0.24/M Write:— | — | +2 |  | 04/01/2026 | |||
| 203K | 3.8s | 48tps | $1.20/M | $4/M | Read:$0.24/M Write:— | — | | 03/15/2026 | ||||
| 203K | 0.3s | 127tps | $0.80/M | $2.56/M | Read:$0.16/M Write:— | — |  +3 | 02/12/2026 | ||||
| 205K | 0.2s | 470tps | $2.25/M | $2.75/M | Read:$2.25/M Write:— | — |  +3 | 12/22/2025 |