How to configure opencode with Cerebras Qwen 3 Coder 480B (it's so fast!)

opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "model": "cerebras/qwen-3-coder-480b",
  "provider": {
    "cerebras": {
      "api": "https://api.cerebras.ai/v1",
      "npm": "@ai-sdk/openai-compatible",
      "name": "Cerebras",
      "env": [],
      "options": {
        "apiKey": "csk-......"
      },
      "models": {
        "qwen-3-coder-480b": {
          "name": "Qwen 3 Coder 480B",
          "attachment": false,
          "reasoning": false,
          "temperature": true,
          "tool_call": true,
          "cost": {
            "input": 0,
            "output": 0
          },
          "limit": {
            "context": 131072,
            "output": 8192
          },
          "options": {
            "stream": true
          }
        }
      }
    }
  }
}