curl https://api.openai.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -d '{
  "model": "o4-mini",
  "messages": [
    {
      "role": "developer",
      "content": [
        {
          "type": "text",
          "text": "system message here"
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "text",
          "text": "user message here"
        }
      ]
    }
  ],
  "response_format": {
    "type": "text"
  }
}'