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. Your use is subject to Z.AI's Terms & Privacy Policies.
ReasoningTool UseImplicit Caching
import { streamText } from 'ai'
const result = streamText({ model: 'zai/glm-5.2-fast', prompt: 'Why is the sky blue?'})Copy link to headingMore models by Z.AI
| Model |
|---|
| 1M | 1.5s | 210tps | $0.15/M$0.08/M | $0.50/M$0.25/M | Read:$0.03/M$0.01/M Write:— | — | +1 |    +5 | 08/26/2026 | |||||
| 1M | 4.5s | 71tps | $1.40/M | $4.40/M | Read:$0.26/M Write:— | — |  | 08/18/2026 | ||||||
| 1M | 0.1s | 317tps | $0.70/MFast $2.10/M | $2.20/MFast $6.60/M | Read:$0.11/M Write:— | — |   +15 | 06/16/2026 | ||||||
| 205K | 1.0s | 47tps | $1.40/M | $4.40/M | Read:$0.26/M Write:— | — |  | 04/07/2026 | ||||||
| 200K | 0.5s | $0.06/M | $0.40/M | Read:$0.01/M Write:— | — | | 01/19/2026 | |||||||
| 205K | 0.2s | 181tps | $0.43/M | $1.75/M | Read:$0.08/M Write:— | — |  +2 | 12/22/2025 |