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GLM 5.3 Fast

Speed-optimized version of Z.AI’s GLM-5.3 agentic coding model, built for responsive, real-time workloads. It supports advanced coding, long-horizon task execution, testing, vulnerability discovery, and cybersecurity analysis, making it ideal for developer tools, coding agents, and complex multi-step engineering workflows.

Input and output price
Input $2.10, Output $6.60, Per 1M tokens
24h uptime
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Get API keyRead the docs
import { streamText } from 'ai'


const result = streamText({
  model: 'zai/glm-5.3-fast',
  prompt: 'Why is the sky blue?'
})
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P50 throughput on live AI Gateway traffic, in tokens per second (TPS). Visit the docs for more info.

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