Glm 4.5 vs Glm 4.5 Air

Live API pricing and availability, side by side. Both models run on FastInfra's OpenAI-compatible endpoint — switching between them is a one-line change.

Pricing

Price per 1M tokens

Prices are live and sync automatically from wholesale providers.

	Glm 4.5	Glm 4.5 Air
Input	$0.63	$0.14
Output	$2.31	$0.89
Default provider	OpenRouter	OpenRouter
Providers available	2	3

On input tokens, Glm 4.5 Air is currently 4.6× cheaper than Glm 4.5 on FastInfra. Output-token pricing and quality trade-offs differ per workload — test both with the free tier.

Quickstart

Try both in 30 seconds

Same endpoint, same SDK — only the model string changes.

from openai import OpenAI

client = OpenAI(api_key="YOUR_API_KEY", base_url="https://api.fastinfra.ai/v1")

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