Seedream 4.5

Generate an image

One synchronous call returns a hosted image URL you can use straight away.

seedream-4.5· generate an imagecURLPythonNode.jscopy

# export NINJACHAT_API_KEY="nj_sk_..."   (Developers → Keys)
curl https://www.ninjachat.ai/api/v1/images/generations \
  -H "Authorization: Bearer $NINJACHAT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedream-4.5",
    "prompt": "product shot of a matte black espresso machine on walnut, soft window light",
    "size": "2560x1440",
    "n": 1
  }'

• size is one of 1920x1920, 2560x1440, or 1440x2560; pass aspect_ratio (for example "4:5") or explicit width/height between 256 and 2048 when you need another frame.
• n goes up to 4 and every image is billed at this model's per-image price; data[i].url is a permanent CDN link, so there is nothing to poll.
• storage is optional and defaults to "durable". Set it to "provider" to skip the persistence hop for lower latency; then handle either a temporary url or b64_json plus mime_type.