Agent may make mistakes. Verify all outputs.
GLM-4.5 and GLM-4.5-Air are our latest flagship models, purpose-built as foundational models for agent-oriented applications. Both leverage a Mixture-of-Experts (MoE) architecture. GLM-4.5 has a total parameter count of 355B with 32B active parameters per forward pass, while GLM-4.5-Air adopts a more streamlined design with 106B total parameters and 12B active parameters.
import { streamText } from 'ai'
const result = streamText({ model: 'zai/glm-4.5-air', prompt: 'Why is the sky blue?'})Try out GLM 4.5 Air by Z.ai. Usage is billed to your team at API rates. Free users get $5 of credits every 30 days, and you are considered a free user if you haven't made a payment.
| Model |
|---|
| 205K | 0.8s | 48tps | $1.40/M | $4.40/M | Read:$0.26/M Write:— | — | — |    +1 | 04/07/2026 | ||||
| 200K | 3.5s | 59tps | $1.20/M | $4.00/M | Read:$0.24/M Write:— | — | — |  | 04/01/2026 | ||||
| 203K | 4.9s | 88tps | $1.20/M | $4.00/M | Read:$0.24/M Write:— | — | — | | 03/15/2026 | ||||
| 203K | 0.5s | 83tps | $0.80/M | $2.56/M | Read:$0.16/M Write:— | — | — |  +3 | 02/12/2026 | ||||
| 205K | 0.1s | 537tps | $2.25/M | $2.75/M | Read:$2.25/M Write:— | — | — |  +2 | 12/22/2025 | ||||
| 205K | 0.6s | 114tps | $0.60/M | $2.20/M | Read:$0.11/M Write:— | — | — |  +1 | 09/30/2025 | ||||
| 128K | 2.5s | 77tps | $0.30/M | $0.90/M | Read:$0.05/M Write:— | — | — | | 09/30/2025 | ||||
| 128K | — | — | | 09/30/2025 | |||||||||
| 66K | 1.1s | 60tps | $0.60/M | $1.80/M | Read:$0.11/M Write:— | — | — | | 08/11/2025 | ||||
| 131K | 0.5s | 77tps | $0.60/M | $2.20/M | Read:$0.11/M Write:— | — | — | | 07/28/2025 | ||||
| 200K | 5.4s | 139tps | $0.06/M | $0.40/M | Read:$0.01/M Write:— | — | — | | 01/01/2025 | ||||
| 200K | 0.5s | 132tps | $0.07/M | $0.40/M | Read:$0.01/M Write:— | — | — | |