GLM 4.5 Air API Pricing

GLM 4.5 Air pricing by provider

6 listings across 6 providers. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

What GLM 4.5 Air costs in practice

1,000 requests with 2,000 input and 500 output tokens each

100 long-document requests with 100,000 input and 2,000 output tokens each

GLM 4.5 Air features

• Function calling
• Parallel tool calls
• Structured output
• Reasoning
• Prompt caching

Use GLM 4.5 Air with LiteLLM

Call GLM 4.5 Air through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

from litellm import completion

response = completion(
    model="zai/glm-4.5-air",
    messages=[{"role": "user", "content": "Hello!"}],
)

model_list:
  - model_name: glm-4.5-air
    litellm_params:
      model: zai/glm-4.5-air
      # credentials: see the provider's LiteLLM docs page

curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "glm-4.5-air",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

GLM 4.5 Air FAQ

More Z.ai models

• GLM 4.7 H$0.60 / $2.20 per 1M tokens
• GLM 4.7 FlashFree
• GLM 4.6v$0.30 / $0.90 per 1M tokens
• GLM 4.7$0.60 / $2.20 per 1M tokens
• GLM 4.7 251222Free
• GLM 4 32B 0414 128K$0.10 / $0.10 per 1M tokens
• GLM 4.5 Airx$1.10 / $4.50 per 1M tokens
• GLM 4.5 FlashFree