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Z.ai: GLM 4.5 Air API Pricing

Z.ai: GLM 4.5 Air is an API model from z-ai. It costs $0.13 per 1M input tokens and $0.85 per 1M output tokens, with cached input at $0.025. Its context window is 131,072 tokens with up to 98,304 output tokens. A workload of 10M input + 2M output tokens costs about $3 per month.

Input

$0.13

per 1M tokens

Output

$0.85

per 1M tokens

Cached input

$0.025

per 1M tokens

Context window

131K

131,072 tokens

Blended (80/20)

$0.274

per 1M tokens

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

Where to run Z.ai: GLM 4.5 Air

AI/ML API: one API key for 400+ models, including most models tracked here · Novita AI: pay-as-you-go APIs for open models (DeepSeek, Qwen, Llama and more) plus GPU cloud. Prices there follow each platform's own catalog and can differ from the list prices tracked here.

Run it on AI/ML API →Run it on Novita AI →

Disclosure: links to these platforms may be affiliate links — if you sign up or buy through them, LLMPrices may earn a commission at no extra cost to you.

Compare Z.ai: GLM 4.5 Air with other models

Z.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 5.3 FlashZ.ai: GLM 4.5 Air vs Z.ai: GLM 4.6VZ.ai: GLM 4.5 Air vs Z.ai: GLM 5.3 FlashXZ.ai: GLM 4.5 Air vs Z.ai: GLM 4.5V

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 22, 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. 21 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 22, 2026, refreshed daily. How we collect prices