Image generation overview

Image APIs live under https://apimaster.ai/v1. Documented models:

Model	Description	Doc
gpt-image-2	Standard channel; URL + base64 reference images	GPT-Image-2
gpt-image-2-official	OpenAI official channel; mask inpainting, quality, up to 4 images	GPT-Image-2 official

Conventions

• Auth: Authorization: Bearer YOUR_API_KEY (get key)
• Submit: POST https://apimaster.ai/v1/images/generations → task_id
• Poll: GET https://apimaster.ai/v1/tasks/{task_id} (wait 10–20s before first poll, then every 3–5s)

Quick example

curl -s "https://apimaster.ai/v1/images/generations" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-image-2",
    "prompt": "An orange cat watching sunset, watercolor",
    "size": "16:9",
    "resolution": "2k"
  }'