Draft mode

Draft mode lets you check a Seedance 2.5 idea with a quick, low-resolution video before you spend on the full-quality one.

How it works

1. A draft run renders a 480p preview.
2. You review it.
3. A final run takes the draft and renders the high-quality video. The final keeps the draft’s scene and motion.

The final reuses the draft’s prompt, references, duration, aspect ratio, seed and audio setting. It renders at 1080p for Seedance 2.5 and at 4K for Seedance 2.5 Premium.

Run a draft and a final

1. Add a Seedance 2.5 node: Text to Video, First-Last-Frame to Video or Reference to Video.
2. Set model to Seedance 2.5 Draft (or Seedance 2.5 Premium Draft).
3. Set the node’s seed control to fixed.
4. Run. Watch the 480p video.
5. Connect the draft_task_id output to Seedance 2.5 Draft to Final Video, connect Save Video, and run again.

Caution

Keep the seed control on fixed. With a changing seed, the draft node runs again and makes a new draft, so the final would not match the one you reviewed. While the inputs stay the same, ComfyUI does not re-run the draft node.

Draft to Final reads the model from the draft

The final node has no model input. It looks up the draft task at BytePlus and reads the model from it, so a Seedance 2.5 draft gets a 1080p final and a Seedance 2.5 Premium draft gets a 4K final. Drafts from different models cannot go into the same node. Use one Draft to Final node for each model.

The draft_task_id output

• Only the two Draft models produce a draft_task_id. If you connect that output while another model is selected, the node tells you to pick a Draft model or disconnect it.
• With generation_count above 1, you get one ID per line.
• You can also paste draft task IDs into the Draft to Final node, one per line, to render a draft from an earlier session.
• A draft can be rendered for 7 days after it was created. Older drafts are refused.
• The draft must have succeeded first. A failed or unfinished draft cannot be rendered.

Cost

A draft is a billed task, and the final is a second billed task. The draft shows whether the idea works before you pay for the full-quality render. See Billing and cost.

Try it

The Seedance 2 template has a group that renders the draft first. Review it, then enable the Draft to Final group.