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Z.ai: GLM 4.5 Air API Pricing
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...
How much does Z.ai: GLM 4.5 Air cost for a real workload?
At 10M input + 2M output tokens per month, Z.ai: GLM 4.5 Air costs about $3 ($1.3 input + $1.7 output). Try your own volumes in the cost calculator.
What are cheaper alternatives to Z.ai: GLM 4.5 Air?
- Qwen: Qwen3 Coder Next — $0.12 in / $0.8 out per 1M
- Xiaomi: MiMo-V2.5-Pro — $0.3045 in / $0.609 out per 1M
- Mistral: Mistral Small 3.1 24B — $0.351 in / $0.555 out per 1M
- Google: Gemini 3.1 Flash Lite (batch) — $0.125 in / $0.75 out per 1M
- DeepSeek: DeepSeek V4 Flash Vision Exp — $0.2156 in / $0.6468 out per 1M
- Meta: Llama 4 Maverick — $0.1875 in / $0.6525 out per 1M
Compare Z.ai: GLM 4.5 Air with other models
Z.ai: GLM 4.5 Air vs Z.ai: GLM 5.3 FlashZ.ai: GLM 4.5 Air vs Z.ai: GLM 5.3 Flash (batch)Z.ai: GLM 4.5 Air vs Z.ai: GLM 4.7 FlashZ.ai: GLM 4.5 Air vs Z.ai: GLM 4.6VZ.ai: GLM 4.5 Air vs Z.ai: GLM 5.3Z.ai: GLM 4.5 Air vs Z.ai: GLM 5.3 FlashX
Frequently asked questions
How much does Z.ai: GLM 4.5 Air cost?
Z.ai: GLM 4.5 Air costs $0.13 per 1M input tokens and $0.85 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $3.
What is the context window of Z.ai: GLM 4.5 Air?
Z.ai: GLM 4.5 Air has a context window of 131,072 tokens and can return up to 98,304 output tokens per response.
What are cheaper alternatives to Z.ai: GLM 4.5 Air?
Cheaper models include Qwen: Qwen3 Coder Next ($0.12 in / $0.8 out), Xiaomi: MiMo-V2.5-Pro ($0.3045 in / $0.609 out), Mistral: Mistral Small 3.1 24B ($0.351 in / $0.555 out). See the full list on this page.
Is Z.ai: GLM 4.5 Air free to use?
No. Z.ai: GLM 4.5 Air is a paid model at $0.13 input / $0.85 output per 1M tokens. 20 free models are listed on the free models page.
Provider: z-ai · Model ID: z-ai/glm-4.5-air · Modality: text->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices