StarSeaAPI

glm-4.5-air vs glm-5.3-flash

	glm-4.5-air	glm-5.3-flash
Providers	Zhipu AI	Zhipu AI
Input $/M	$0.12	$0.12
Output $/M	$0.30	$0.42
Output multiplier	×2.50	×3.50
Context window	128K tokens	1M tokens
Intelligence index	—	46.2
Coding index	—	71.5

What the numbers mean

Input pricing is close — 1.00× apart — so the decision should come down to measured quality on your own evaluation set rather than headline cost.

Tags: glm-4.5-air — Chat, Reasoning, Coding · glm-5.3-flash — Chat, Coding, Vision

Code

from openai import OpenAI
client = OpenAI(base_url="https://starseaapi.com/v1", api_key="sk-...")

# glm-4.5-air
client.chat.completions.create(model="glm-4.5-air", messages=[{"role":"user","content":"Hi"}])

# glm-5.3-flash
client.chat.completions.create(model="glm-5.3-flash", messages=[{"role": "user", "content": "Hi"}])

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