STAGE 01
Define the acceptance state
Describe the final state the viewer must see or understand. Name the subject, setting, central change, and ending composition.
Decision record: What must be visibly true in the final seconds?
FIELD GUIDE / 07 STAGES
Seedance 2.5 Guide: Build the Brief Before You Generate
A useful prompt names the ending, schedules the beats, assigns every reference, protects continuity, and defines the next review.
STAGES
Follow One Brief-to-Review Sequence
Move through seven deliberate stages so story intent, references, timing, continuity, and revisions remain connected from plan to extension.
STAGE 02
Draft the beat sheet
Break the sequence into an opening, development, turn, and ending. Give each beat a time range and one main event.
Decision record: Which event owns each time range?
STAGE 03
Build the reference register
List selected images, clips, and audio. Assign one primary job: identity, environment, motion, camera, voice, ambience, or music.
Decision record: What production question does each source answer?
STAGE 04
Write continuity constraints
Name details that must persist: subject proportions, wardrobe, geometry, room layout, light direction, camera logic, voice, and ambience.
Decision record: What must not drift when the scene changes?
STAGE 05
Assemble the production prompt
Order the acceptance state, source assignments, timed beats, camera and sound direction, continuity constraints, and review condition.
Decision record: Can every instruction be connected to a beat or source?
STAGE 06
Review the generated sequence
Check story order, identity, interaction, spatial continuity, motion, camera trajectory, lighting, and audio by time range.
Decision record: Which smallest interval fails an acceptance condition?
STAGE 07
Revise or extend
Request one bounded change and restate surrounding constraints. Extend only after the ending becomes a stable handoff.
Decision record: Is the next action a local correction or a continuation?
SOURCES
Assign References by Production Responsibility
Build a register showing which source controls identity, space, performance, camera behavior, or sound inside each planned beat.
01
Identity
Clean subject or product images
Does the subject remain recognizable?
02
Environment
Location frames or layout references
Can the viewer understand where subjects are?
03
Performance
Motion or acting clips
Does the action follow the intended path?
04
Camera
Movement or composition clips
Does the viewpoint reveal the right information?
05
Voice and sound
Voice, ambience, music, or effects
Do audible changes support the story beats?
The maximum—30 images, 10 video clips, and 10 audio clips—is not a target. A smaller register with explicit jobs can be easier to direct and audit.
TIMING
Turn Thirty Seconds into a Readable Story Arc
Give each interval one dominant change, supporting camera and sound direction, and a final state that can be reviewed without guessing.
Illustrative beat sheet — not a verified model output.
00:00–00:06
Establish
Subject enters a night workshop; quiet room tone
00:06–00:15
Develop
Follow to a bench; hands uncover an object
00:15–00:23
Turn
Camera arcs as the object activates
00:23–00:30
Resolve
Movement settles into a stable final hold
TRIAGE
Diagnose the Failed Beat Before Rewriting
Classify the visible problem, preserve the choices that worked, and change one production boundary instead of replacing the full prompt.
Identity drift
Restate the identity source and exact features that must persist. Remove competing appearance references.
Unclear interaction
Simplify simultaneous actions, clarify who acts on what, and stabilize starting positions.
Broken motion
Narrow the physical change, provide a clearer motion source, or divide the action into fewer stages.
Camera confusion
Separate subject movement from camera movement and name the path, target, and end framing.
Audio mismatch
Place dialogue, ambience, music, or effects in the relevant range and identify which sound leads.
REVIEW
Score the Sequence Against the Brief
Use one evidence-based checklist after a first generation, targeted edit, or extension so acceptance never depends on vague impressions.
- 01Opening establishes subject and setting
- 02Events occur in the planned order
- 03Identity and geometry remain recognizable
- 04Interactions and space stay physically legible
- 05Camera movement reveals intended information
- 06Lighting and color remain coherent
- 07Audio aligns with planned beats
- 08Ending satisfies the acceptance state
ANSWERS
Practical Seedance 2.5 Guide Questions
Resolve common questions about prompt structure, reference quantity, timestamps, review evidence, targeted edits, and safe extensions.
What should a Seedance 2.5 prompt contain?
Include an acceptance state, assigned reference roles, a timed beat sheet, camera and sound direction, continuity constraints, and a review condition.
How many references can one generation use?
The official announcement states that one generation can accept up to 30 images, 10 video clips, and 10 audio clips.
Should I use the maximum number of references?
Not automatically. Use a source only when it has a clear production responsibility and does not conflict with another source.
How should timestamps be organized?
Give each readable time range one dominant story event, then attach relevant action, camera, and sound direction.
What belongs in a continuity constraint?
Name observable details that should persist, such as identity, geometry, room layout, light direction, camera logic, voice, and ambience.
How do I review a complex interaction?
Inspect starting positions, contact, movement path, identity, and spatial relationship across the relevant interval.
When should I use a targeted edit?
Use a targeted edit when one bounded character, action, plot, background, or camera issue fails while surrounding context should remain.
When is a sequence ready to extend?
Extend after the ending is stable, satisfies the acceptance state, and provides a clear audiovisual handoff.
Does this guide define platform access or pricing?
No. A specific implementation determines access, controls, checkout, and pricing. This Guide covers the production method only.
Turn Your Next Idea into a Reviewable Brief
Write the ending first, schedule the beats, register the sources, and let the scorecard define the next revision.