Vertical workout demo, 15 seconds at 720p: Sume prices

A 15-second vertical clip at 720p costs $1.13 on minimax-h3 (768p), $1.88 on wan-3.0, $5.67 on seedance-2, $3.15 on kling-3 with sound and $8.67 on seedance-2.5. gemini-omni-flash-1.1 cannot do 15 seconds: its ceiling is 10.

Every model above lists 9:16. For a workout demo the real question is length: a single squat set is a few seconds, so a 15-second clip makes sense only for a full routine in one take. Limits: Video Router, read 2026-10-06.

What does 15 seconds cost?

9:16, 720p (H3 at 768p), 15 seconds.

Should I use a reference clip?

If you have a clip of the movement you want, Seedance and Wan accept reference videos in input_references. Kling 3 on Sume does not take reference_*_urls, so it is text or first-frame only. Describe the move in plain terms: tempo, stance, camera at hip height.

curl -sS -X POST https://api.sume.com/v1/videos \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "wan-3.0",
    "prompt": "A trainer demonstrates a slow bodyweight squat in a bright studio, camera at hip height",
    "duration": 15,
    "resolution": "720p",
    "aspect_ratio": "9:16"
  }'

How do I save money on a routine?

Draft the move at 480p on Wan 3.0, where 15 seconds is $0.94, before rendering the keeper at 720p.