LLM API
Z.aiText generationReleased July 28, 2025

GLM-4.5 Air

GLM-4.5 Air costs $0.13 per 1M input tokens and $0.85 per 1M output tokens on LLM API, with a 128K-token context window.

Pricing

Lowest price among 2 providers, after discounts.

GLM-4.5 Air prices on LLM API
Input$0.13per 1M tokens
Output$0.85per 1M tokens
Cache read$0.03per 1M tokens

Providers

Prices after each provider’s discount; the lowest in bold.

Providers of GLM-4.5 Air on LLM API
EmberCloud$0.13$0.85$0.03128K4K
Z.ai$0.2$1.1$0.03128K4K

Features

  • ToolsYes
  • Parallel tool callsNo
  • Image inputNo
  • ReasoningNo
  • Prompt cachingYes
  • Structured outputsYes
  • JSON modeYes
  • StreamingYes
  • Web searchNo

Call GLM-4.5 Air

POST /v1/chat/completionsSet LLMAPI_KEY to your LLM API key.Chat Completions docs

import os

from openai import OpenAI

client = OpenAI(
    base_url="https://api.llmapi.ai/v1",
    api_key=os.environ["LLMAPI_KEY"],
)

response = client.chat.completions.create(
    model="glm-4.5-air",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

More from Z.ai

All Z.ai text models

Prices synced .

You've been invited to LLM API

Top up $50 or more and the friend who invited you gets $20 in credits. We pay the $20; your credits stay yours. Referral terms

Sign up