gpt-4o-image (text to image)

curl -X POST "https://gptproto.com/v1/images/generations" \
  -H "Authorization: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gpt-image-1",
  "prompt": "oxen and horses",
  "n": 1,
  "size": "1024x1024"
}'

{
  "error": {
    "message": "Invalid signature",
    "type": "401"
  }
}