Z.ai
GLM 4.5 Air API pricing
GLM 4.5 Air is Z.ai’s model on the API market, released 25 Jul 2025. Prices are per million tokens in USD, as last read from the price list.
$0.13Input / 1M
$0.85Output / 1M
131KContext
98KMax output
Specification
USD per million tokens- Provider
- Z.ai
- Model id
z-ai/glm-4.5-air- Input
- $0.13
- Output
- $0.85
- Cached input
- $0.025
- Context window
- 131K tokens
- Maximum output
- 98K tokens
- Takes
- text
- Returns
- text
- Tool use
- Yes
- Reasoning
- Yes
- Released
- 25 Jul 2025
- First tracked
- 17 Sept 2026
At $0.13 per million input tokens, GLM 4.5 Air is dearer than 75 of the 326 models on the price list.
Price changes
Tracked since 17 Sept 2026No price change has been recorded since tracking began on 17 Sept 2026. Prices are checked every six hours, and any change is listed here and on model changes.
More from Z.ai
Cheapest input first- GLM 4.7 Flash$0.061 in · $0.40 out
- GLM 5.3 Flash$0.090 in · $0.30 out
- GLM 4.6V$0.30 in · $0.90 out
- GLM 4.7$0.40 in · $1.75 out
- GLM 4.6$0.43 in · $1.75 out
- GLM 5$0.60 in · $1.92 out
- GLM 4.5V$0.60 in · $1.80 out
- GLM 4.5$0.60 in · $2.20 out
Prices and specifications come from OpenRouter’s catalogue, last read 17 Sept 2026. A provider’s own price may differ; how this is collected.