GLM-5.3 Fast is a lower-latency serving tier of GLM-5.3, Z.ai's reasoning model for complex software engineering and long-horizon agent tasks. It shares GLM-5.2's base model with improved post-training for coding, and supports text input and output with a 1M-token context window.
Modalities
In / out price
$2.10 / $6.60per 1M
Cached price
$0.21per 1M
Context
1M
Max output
131K
Providers
1 routeCompare providers by price, privacy, and speed.
Baseten | Private | $2.10 | $6.60 | $0.21 | 1M | 131K | — | — |
Privacy
2 / 4Private routing
Private tier
- Anonymous
- Private
- TEE
- E2EE
Prompt and response content is not retained after the request. Request content is visible to the inference runtime while it is being processed. Learn more
Features
5Streaming
Tool calling
Reasoning
JSON/schema
Prompt caching
Uptime
FAQ
Common questions about GLM 5.3 Fast.