GLM 5.3 Fast
GLM-5.3-Prime is a faster version of GLM-5.3. It keeps all of the original model's capabilities while generating output 1.5 to 2 times faster, thanks to inference acceleration.
All Providers for GLM 5.3 Fast
LLM Gateway routes requests to the best providers that are able to handle your prompt size and parameters.
Frequently asked questions
What is GLM 5.3 Fast?
GLM-5.3-Prime is a faster version of GLM-5.3. It keeps all of the original model's capabilities while generating output 1.5 to 2 times faster, thanks to inference acceleration. You can access it through LLM Gateway's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.
How much does GLM 5.3 Fast cost?
Pricing for GLM 5.3 Fast on LLM Gateway starts at $2.80 per million input tokens and $8.80 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.
What is the context length of GLM 5.3 Fast?
GLM 5.3 Fast supports a context window of up to 1,000,000 tokens on its largest provider deployment.
Which providers serve GLM 5.3 Fast?
GLM 5.3 Fast is served by SCX.ai through LLM Gateway. Requests are automatically routed to the best available provider, with fallback when a provider has issues.
Does GLM 5.3 Fast support tool calling and structured outputs?
No. GLM 5.3 Fast does not currently support tool calling or structured JSON outputs through LLM Gateway.
When was GLM 5.3 Fast released?
GLM 5.3 Fast was released on October 7, 2026.
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