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GLM 5.3 FlashX

GLM-5.3-FlashX is the high-speed variant of Z.ai's GLM-5.3-Flash, a native multimodal model delivering inference speeds of up to 200 tokens/s.

Pricing

Input
$0.3885per 1M tokens
Output
$1.31per 1M tokens
Cache read
$0.0945per 1M tokens
Max output
131,072tokens

OpenRouter's price plus OpenRouter's 5% platform fee. Deference adds no markup.

opencode.json

{
  "provider": {
    "deference": {
      "npm": "@ai-sdk/openai-compatible",
      "options": { "baseURL": "https://deference.si/v1", "apiKey": "{env:DEFERENCE_API_KEY}" },
      "models": { "z-ai/glm-5.3-flashx": { "limit": { "context": 1048576, "output": 131072 } } }
    }
  }
}
OpenCode, set up for GLM 5.3 FlashX

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