Z.ai API
Canonical page on the main site: chinaaihub.com/api/zai
Provider
Api Type
official
Endpoint
https://api.z.ai/api/paas/v4/chat/completions
Authentication
Bearer API key
Streaming
Yes
Function Calling
Yes
Tool Calling
Yes
Vision
Yes
Context Limits
| model | input_limit | output_limit |
|---|---|---|
| glm-5.3 | 1048576 | 131072 |
| glm-5.3-flash | 1048576 | 131072 |
Regions
- international
- china
Cloud Providers
- Z.ai
- BigModel
Pricing Ref
Documentation
https://docs.z.ai/
Last Verified
2026-09-20
Sources
| source_name | source_url | source_type | last_verified | confidence |
|---|---|---|---|---|
| Z.ai docs — Quick Start | https://docs.z.ai/ | official | 2026-09-20 | high |
| Z.ai docs — GLM-5.3 model page | https://docs.z.ai/guides/llm/glm-5.3 | official | 2026-09-20 | high |