ByteDance · model workflow guide
Seedance 2.5 Video Duration Guide
Longer clips are not automatically better. For production work, duration should be chosen around one clear action per shot, continuity risk and the cost of failed generations.
How GenVideoKit structures Seedance 2.5 prompts
Keep the prompt visually dense but efficient. Prioritize readable action sequencing, shot progression, rhythm, reference continuity and a clear visual payoff. State subject motion, camera behavior and timing without unnecessary cinematic filler.
Text → videoImage → videoVideo → videoReferencesNative audio
Production shortcut
Use one main action per clip. If the idea needs several distinct beats, split it in Scene Builder instead of forcing everything into one long generation.
Reference pricing snapshot
$0.3 / second How to choose clip length
- Use a short validation render for a risky motion or identity-heavy shot.
- Give the action enough time to complete naturally; avoid cramming several story beats into one generation.
- Split long ideas into connected scenes and use the previous last frame as the next visual anchor.
- Price retries, not only the final accepted duration.
Reference retry math at the stored rate
| Clip | 1 attempt | 4 attempts | 8 attempts |
|---|---|---|---|
| 5 sec | $1.50 | $6.00 | $12.00 |
| 8 sec | $2.40 | $9.60 | $19.20 |
| 10 sec | $3.00 | $12.00 | $24.00 |