req-001

{
  "model": "claude-sonnet-4-5",
  "max_tokens": 1024,
  "messages": [
    {
      "role": "system",
      "content": "You are a helpful customer support agent for Acme Corp."
    },
    {
      "role": "user",
      "content": "I can't log into my account, it keeps saying 'invalid password'"
    }
  ]
}