# GLM (Z.ai) free API key: how to get one

> Always free GLM (Z.ai) API key, no card needed. The Flash models cost nothing; you can run one request at a time. Step by step setup, checked October 2026.

- Kind: Always free, no card
- Limits: The Flash models cost nothing; you can run one request at a time.
- Models: GLM-4.7 Flash, GLM-4.5 Flash, GLM-4.6V Flash (vision)
- Get the key: https://z.ai/manage-apikey/apikey-list

## Steps

1. Sign up at z.ai.
2. Open API Keys and create one.
3. Paste it under Z.ai and pick a Flash model.

## GLM (Z.ai) models in MultiScreenAI

The free tier covers GLM-4.7 Flash, GLM-4.5 Flash, GLM-4.6V Flash (vision); the others need paid usage on the same key.

- GLM-5.3: https://www.multiscreenai.com/models/glm-5-3
- GLM-5.3 Flash: https://www.multiscreenai.com/models/glm-5-3-flash
- GLM-4.7 Flash: https://www.multiscreenai.com/models/glm-4-7-flash
- GLM-4.5 Flash: https://www.multiscreenai.com/models/glm-4-5-flash
- GLM-4.6V Flash: https://www.multiscreenai.com/models/glm-4-6v-flash

## Use it with every other AI at once

Paste the key into MultiScreenAI (https://www.multiscreenai.com) and ask every model at once, side by side, with a blind test mode. Agents can do the same over MCP: https://www.multiscreenai.com/mcp