GLM 4.5 Air pricing & benchmarks
Released Jul 25, 2025 · served by 3 providers
What GLM 4.5 Air is
GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter...
- Model ID:
z-ai/glm-4.5-air - Modality: text->text
- Knowledge cutoff: 2024-12-31
- Tool calling: supported · Structured output: not supported
- Weights:
zai-org/GLM-4.5-Airon Hugging Face
Providers and prices for GLM 4.5 Air
The same model costs different amounts depending on who serves it. Prices are per 1M tokens, cheapest first. Uptime and throughput are OpenRouter's rolling measurements, not vendor claims.
| Provider | Input | Output | Context | Quant | Uptime 24h | Throughput |
|---|---|---|---|---|---|---|
| Novitacheapest | $0.130 | $0.850 | 131K | bf16 | 97.8% | — |
| SiliconFlow | $0.140 | $0.860 | 131K | fp8 | 99.3% | — |
| Z.AI | $0.200 | $1.10 | 131K | fp8 | 97.7% | — |
GLM 4.5 Air benchmark results
Design Arena head-to-head results, as reported through the OpenRouter model API.
| Category | Arena | Rank | Elo | Win rate |
|---|---|---|---|---|
| dataviz | models | #42 | 1222 | 59.4% |
| svg | models | #51 | 1121 | 50.8% |
| 3d | models | #53 | 1180 | 54.1% |
| uicomponent | models | #63 | 1161 | 54.6% |
| website | models | #65 | 1171 | 51.3% |
| codecategories | models | #66 | 1168 | 51.5% |
| gamedev | models | #68 | 1150 | 48.4% |
FAQ
How much does the GLM 4.5 Air API cost?
$0.130 per 1M input tokens and $0.850 per 1M output tokens. A typical workload of 1M input + 300K output tokens costs about $0.39.
Is GLM 4.5 Air free?
No. It is a paid model starting at $0.130 per 1M input tokens, though some providers offer trial credits.
Which provider is cheapest for GLM 4.5 Air?
Novita at $0.130 input / $0.850 output per 1M tokens (bf16 quantization).
Can I self-host GLM 4.5 Air?
Yes — weights are published as zai-org/GLM-4.5-Air on Hugging Face, so you can run it on your own hardware.