Question 1

What does the GLM-4.6 API cost?

Accepted Answer

The official Zhipu AI list price is $0.600 per 1M input tokens and $2.20 per 1M output tokens.

Question 2

How much does 1 million tokens of GLM-4.6 cost?

Accepted Answer

1M input tokens cost $0.600, 1M output tokens — $2.20. With a 1:1 input/output load a million tokens works out to about $1.40. Chatbots with long context push the blended price down; code generation pushes it up.

Question 3

Where is the GLM-4.6 API cheapest?

Accepted Answer

Our measurements show ModelMill as the cheapest: 79% below the official price (sample listing). Quotes from 2 providers refresh daily — see the table above.

Question 4

What is the GLM-4.6 context window?

Accepted Answer

The context window is 200K tokens. Some vendors raise the price above a context threshold — check the plan notes.

Question 5

How do I check that a provider key works?

Accepted Answer

The free checker sends a GET request to your endpoint's model list and reports status and latency. The key is not stored server-side.

#	Provider	1M input	1M output	Discount	Tokens per $100
—	Official list	$0.600	$2.20	0%	115M
1	ModelMilldemo	$0.125	$0.459	−79%	553M
2	APIBridgedemo	$0.282	$1.03	−53%	246M

Cheapest GLM-4.6 API: ModelMill is 79% below the official price

What to check before buying