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GLM 4.5 Air API price
z-ai/glm-4.5-air
The cheapest GLM 4.5 Air API is $0.13/M input at OpenRouter (aggregator) - all 3 providers compared below, per 1M tokens.
SmallZ.ai / Zhipu131K context3 sellers
Input
$0.13
per 1M tokens · OpenRouter (aggregator)
up to $0.20
Output
$0.85
per 1M tokens · OpenRouter (aggregator)
up to $1.10
Where to buy it
Cheapest GLM 4.5 Air API providers compared - 3 sellers, from $0.13/M.
Cost calculator
| Provider | Input $/M | Output $/M | Cached in | Your cost |
|---|---|---|---|---|
| OpenRouter (aggregator) | 0.130cheapest | 0.850 | 0.025 | |
| TokenRouter (aggregator) | 0.130 | 0.850 | 0.025 | |
| OrcaRouter (aggregator) | 0.200 | 1.10 | - |
1.5× between the cheapest and the dearest of 3 sellers.
Against its tier
- This model$0.98
- Cheapest · Nemotron 3.5 Lightning$0.145
- Tier median · GPT 5.4 Nano (latest)$0.9425
- Dearest · GPT 5.4 Mini (03-17 snapshot)$5.25
#12 of 20 small · cheaper than 42%
Details
- Context window
- 131K131,072 tokens
- Developer
- Z.ai / Zhipu
- Intelligence
- 11.1 est.
- Sellers
- 31.5× spread
- Cached input
- $0.025where the source publishes one
- Cheapest at
- OpenRouter (aggregator)
- Combined
- $0.98in + out per 1M
- Last checked
- 2026-10-12