Z.ai API keys let SEO Content Machine write articles with GLM-5.3 for about 1 cent each, or for free on the GLM Flash models. Paste the key into API Logins and pick z.ai in any task.
Why use this?
- Pay as you go. A 1,500 word article costs about 1 cent on GLM-5.3.
- GLM is a Chinese model from Zhipu, less restrictive than Western models like GPT and Claude on what it will write and do.
- GLM-4.7-Flash and GLM-4.5-Flash are free and work without a top up. A good option for titles, meta descriptions and short rewrites.
- No subscription and no monthly fee, you only pay for what you run.
The paid models need credit on your Z.ai account.
Without credit they return this error:
Z.ai 1113: Insufficient balance or no resource package. Please recharge.
Notes
Z.ai bills per token. List prices per 1M tokens at time of writing:
- GLM-5.3: $1.40 input, $4.40 output
- GLM-4.7: $0.60 input, $2.20 output
- GLM-4.7-Flash and GLM-4.5-Flash: free
Start on GLM-5.3 for articles. Drop to a Flash model for bulk titles and short rewrites.
Current rates:
Where to get Z.ai
Z.ai:
Get your Z.ai API key
Sign up for a Z.ai account.
Find your API key here: Z.ai API Platform — Start building with GLM-5.3
Create a key and copy it.
Top up under Billing when you move to the paid models: Z.ai API Platform — Start building with GLM-5.3
How to add Z.ai API key to SEO Content Machine
Settings > API Logins > AI > Z.ai
Paste in your API key.
Click Test service.
A reply means it worked.
How to use GLM in SEO Workspace
GLM can be used as an Agent.
Click model in the chat input.
Pick z.ai under Service.
Pick a model under Model. The free ones sit at the top.
This reply ran on glm-4.7-flash, the free model.
Want to try this with your own Z.ai key?
Start SEO Content Machine free trial
How to use GLM to generate articles in bulk
Inside page pipeline, z.ai can be set as the AI model.
Page pipeline > AI model
Select model and effort.
Click refresh model list to pull the newest GLM models.