Two lengths
Choose 11 seconds or 15 seconds. There is no open range and no automatic length.
Resolution follows the model
Seedance 2.0 Mini and Seedance 2.0 Fast offer 480p and 720p. Seedance 2.0 and Seedance 2.5 also offer 1080p. The default quote uses Mini at 480p for 11 seconds, which is 209 credits or $5.39. Other settings spend a different number of credits. A pack is a balance for those quotes, not a fixed number of clips.
Seedance 2.0 Mini offers 480p and 720p.
Seedance 2.5 offers 1080p, 480p, and 720p.
Seedance 2.0 Fast offers 480p and 720p.
Seedance 2.0 offers 480p, 720p, and 1080p.
A pack is a balance for those quotes, not a fixed number of clips. Read the pricing table for the amount and the credits.
Vertical frame and sound
The frame stays vertical, matching the phone shot beside the window. Sound is included. Neither control changes the price.
The frame stays 9:16, matching the phone shot beside the window. No other frame is published.