GLM 5.3 Fast
GLM 5.3 Fast for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.
Explore GLM 5.3 Fast for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses through the unified API. Supported interfaces and current availability are shown below.
- OpenAI-style Chat Completions
- Anthropic-style Messages
- OpenAI-style Responses
Model details
- Context window
- 1M tokens
- Max output
- 128K tokens
- Input
- Text
- Output
- Text
- Capabilities
- Streaming
- Interfaces
- OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses
Pricing
Prices use the units shown below. No gateway fees. Usage, size and model options may affect the total.
| Metric | Price |
|---|---|
| Per generation | Price not published |
Why teams pick it
- GLM 5.3 Fast for OpenAI-style Chat Completions, Anthropic-style Messages, OpenAI-style Responses.
API availability
Availability for this model has not yet been verified. You can compare its features and pricing; request examples will appear once availability is confirmed.
/v1/chat/completionsOpenAI-style Chat Completions · openai SDK or plain HTTP
Availability not yet verified
/v1/messagesAnthropic-style Messages · @anthropic-ai/sdk SDK or plain HTTP
Availability not yet verified
/v1/responsesOpenAI-style Responses · openai SDK or plain HTTP
Availability not yet verified
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