GLM-4.5-Air pricing & specs
Z.AI (Zhipu) · released 2025-07-28 · ● verified 2026-10-11
input / 1M$0.20
output / 1M$1.10
context131.1K
max output98.3K
// price history ($/1M tokens)
// cheaper or similar alternatives
| model | in | out | ctx | vs GLM-4.5-Air |
|---|---|---|---|---|
| Gemma 4 E2B IT | $0.04 | $0.08 | 131.1K | −88.2% |
| Qwen3.7 Flash | $0.03 | $0.13 | 1M | −87.1% |
| Qwen Turbo | $0.05 | $0.20 | 1M | −79.4% |
| DeepSeek V4 Flash 0731 | $0.06 | $0.18 | 1.05M | −78.8% |
| GPT OSS 120B | $0.05 | $0.25 | 131.1K | −76.5% |
// price by host
| host | in $/1M | out $/1M |
|---|---|---|
| Novita AI | $0.13 | $0.85 |
// faq
How much does GLM-4.5-Air cost?
GLM-4.5-Air costs $0.20 per million input tokens and $1.10 per million output tokens. At 50M input and 10M output tokens per month that is about $21.00.
What is the context window of GLM-4.5-Air?
131.1K tokens, with up to 98.3K output tokens per request.
Does GLM-4.5-Air support prompt caching?
Yes. Cached input tokens cost $0.03 per million and cache writes cost $0 per million.
What are cheaper alternatives to GLM-4.5-Air?
Gemma 4 E2B IT ($0.04 in / $0.08 out), Qwen3.7 Flash ($0.03 in / $0.13 out), Qwen Turbo ($0.05 in / $0.20 out) offer the same input types and capabilities for less.
Is GLM-4.5-Air open weights?
Yes. It is available from 1 tracked hosts; the cheapest is Novita AI at $0.13 input and $0.85 output per million tokens.
// spec sheet
- input / 1M
- $0.20
- output / 1M
- $1.10
- cache read / 1M
- $0.03
- cache write / 1M
- $0
- blended (3:1)
- $0.425
- context
- 131.1K
- max output
- 98.3K
- input types
- text
- reasoning
- yes
- tool calling
- yes
- structured output
- no
- open weights
- yes
- knowledge cutoff
- 2025-04
- price source
- Z.AI (Zhipu)
// cost calculator
| model | in $/1M | out $/1M | = monthly |
|---|---|---|---|
| Gemma 4 E2B IT | $0.04 | $0.08 | $2.80 |
| Qwen3.7 Flash | $0.03 | $0.13 | $2.80 |
| Qwen Turbo | $0.05 | $0.20 | $4.50 |
| GLM-4.5-Air | $0.20 | $1.10 | $21.00 |
Base-tier list prices. Long-context tiers, caching and batch discounts are not included.