gemini-3.1-flash-image

curl "https://api.lemondata.cc/v1beta/models/gemini-3.1-flash-image:generateContent" \
  -H "Content-Type: application/json" \
  -H "x-goog-api-key: sk-xxx" \
  -d '{
    "contents": [
      {"role": "user", "parts": [{"text": "Hello!"}]}
    ]
  }'