curl --request POST \
  --url https://api.example.com/api/ai/chat/completion \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "openai/gpt-4",
  "messages": [
    {
      "role": "user",
      "content": "<string>"
    }
  ],
  "stream": false,
  "temperature": 1,
  "maxTokens": 123,
  "topP": 0.5,
  "systemPrompt": "<string>"
}
'

{
  "success": true,
  "content": "<string>",
  "metadata": {
    "model": "<string>",
    "usage": {
      "promptTokens": 123,
      "completionTokens": 123,
      "totalTokens": 123
    }
  }
}