json
//API
{
  "model": {
    "provider": "openai", // or other provider like "anthropic", "google", etc.
    "model": "gpt-4o", // the specific model name
    "messages": [
      {
        "role": "system",
        "content": "Your new system prompt goes here"
      }
      // other messages if needed
    ]
  }
}

sh
//code
assistant.model.messages[0].role ='system'

assistant.model.messages[0].content ='system prompt'