Model comparison
GLM 4.5 vs GLM 4.5 Air
Compare published model capabilities and API prices.
Zai
GLM 4.5
Hybrid-reasoning GLM release that made the 4.5 line broadly useful
Zai
GLM 4.5 Air
Lighter GLM-4.5 variant for fast coding assistance and cheaper agents
| Metric | GLM 4.5 | GLM 4.5 Air |
|---|---|---|
| Provider | Zai | Zai |
| Context window | 128,000 | 128,000 |
| Input $/Mtok | $0.600 | $0.200 |
| Output $/Mtok | $2.20 | $1.10 |
| Modalities | text | text |
| License | open-weights | open-weights |
Quick take
On input price, GLM 4.5 Air is cheaper at $0.200/Mtok. For context window, GLM 4.5 leads with 128,000 tokens.
Pick based on your workload: high-volume cheap inference vs long-document / agent loops. Enterprise DNA can wire either model into Omni with evals, secrets, and job orchestration.