GLM 4.5 Air API Cost Calculator
Estimate your monthly API costs for GLM 4.5 Air from Z Ai.
Pricing per 1M tokens
Pricing last verified: Mar 21, 2026
30-Day Price History
Solid line: input price · Dashed line: output price
Estimate Your Costs
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Cost Breakdown
Compare with Similar Models
| Model | Input/1M | Output/1M |
|---|---|---|
| GLM 4.6V Z Ai | $0.3000 | $0.9000 |
| GLM 4.7 Flash Z Ai | $0.0600 | $0.4000 |
| GLM 4 32B Z Ai | $0.1000 | $0.1000 |
| GLM 4.5 Air (free) Z Ai | $0.00 | $0.00 |
| GLM 4.7 Z Ai | $0.3900 | $1.75 |
Frequently Asked Questions
How much does GLM 4.5 Air cost per token?
GLM 4.5 Air is priced at $0.1300 per 1M input tokens and $0.8500 per 1M output tokens. Use the calculator above to estimate your monthly costs based on your usage volume.
What is the context window for GLM 4.5 Air?
GLM 4.5 Air has a context window of 131.1K tokens (131,072 tokens). The maximum output length is 98.3K tokens.
Does GLM 4.5 Air support function calling (tool use)?
Yes, GLM 4.5 Air supports function calling (also called tool use). You can define custom functions that the model can invoke as part of its responses.
How does GLM 4.5 Air compare to similar models?
GLM 4.5 Air costs $0.1300 input and $0.8500 output per 1M tokens. GLM 4.5 Air (free) is less expensive at $0.00 input and $0.00 output per 1M tokens. See the "Compare with Similar Models" table above, or visit the GLM 4.5 Air (free) page at /tools/cost-calculator/z-ai/glm-4-5-air-free.