z-ai API Pricing
z-ai offers 18 API models in the catalog. Combined input+output prices range from $0.1613 (Z.ai: GLM 5.3 Flash) to $11.6 (Z.ai: GLM 5.3 Prime) per 1M tokens. Its most recent model is Z.ai: GLM 5.3 Prime at $2.8 input / $8.8 output.
| Model | Input /1M | Output /1M | Cached in /1M | Context |
|---|---|---|---|---|
| Z.ai: GLM 5.3 Flash | $0.0413 | $0.12 | $0.00375 | 1,048,576 |
| Z.ai: GLM 5.3 Flash (batch) | $0.05 | $0.18 | $0.01 | 1,048,576 |
| Z.ai: GLM 4.7 Flash | $0.0605 | $0.4 | — | 200,000 |
| Z.ai: GLM 4.5 Air | $0.13 | $0.85 | $0.025 | 131,072 |
| Z.ai: GLM 4.6V | $0.3 | $0.9 | $0.055 | 131,072 |
| Z.ai: GLM 5.3 | $0.079 | $1.4 | $0.078 | 1,048,576 |
| Z.ai: GLM 5.3 FlashX | $0.37 | $1.25 | $0.09 | 1,048,576 |
| Z.ai: GLM 4.5V | $0.6 | $1.8 | $0.11 | 65,536 |
| Z.ai: GLM 5.3 (batch) | $0.45 | $2 | $0.1 | 1,048,576 |
| Z.ai: GLM 4.7 | $0.54 | $1.98 | $0.099 | 204,800 |
| Z.ai: GLM 4.6 | $0.55 | $2.2 | $0.11 | 204,800 |
| Z.ai: GLM 4.5 | $0.6 | $2.2 | $0.11 | 131,072 |
| Z.ai: GLM 5 | $1 | $3.2 | $0.2 | 204,800 |
| Z.ai: GLM 5V Turbo | $1.2 | $4 | $0.24 | 202,752 |
| Z.ai: GLM 5 Turbo | $1.2 | $4 | $0.24 | 202,752 |
| Z.ai: GLM 5.1 | $1.4 | $4.4 | $0.26 | 204,800 |
| Z.ai: GLM 5.2 | $0.0341 | $7 | $0.033 | 1,048,576 |
| Z.ai: GLM 5.3 Prime | $2.8 | $8.8 | $0.56 | 1,000,000 |
Frequently asked questions
What is the cheapest z-ai model?
The cheapest z-ai model by combined price is Z.ai: GLM 5.3 Flash at $0.0413 input and $0.12 output per 1M tokens.
How many models does z-ai offer via API?
z-ai lists 18 models in the OpenRouter catalog as of October 21, 2026.
Price snapshot October 21, 2026, refreshed daily.