30-second directed clips
The extended ladder (up to 30 seconds) holds true three-act mini-films with setup, escalation, and payoff in one generation.
Seedance 2.5 AI Video Generator
Seedance 2.5 is an AI video generation model developed by ByteDance. Use Seedance 2.5 as the flagship AI video generator for clips up to 30 seconds. Learn its frame control, reference system, prompting, examples, and limits before generating. The sections below break down its capabilities, live settings, prompting, examples, and review points.
MODEL OVERVIEW
What is Seedance 2.5?
Seedance 2.5 is the flagship: longest duration, deepest references, and explicit frame control for directed mini-films.
Try Seedance 2.5
Model focus
2.5 targets directed work: up to 30 seconds at up to 1080p with first/last-frame bracketing and reference audio and video.
Input workflow
Text, image, and reference-to-video modes accept up to 30 references with 30,000-character briefs for genuinely specified productions.
Output control
Use the live settings table as truth for the extended duration ladder, resolutions, adaptive ratio, and advanced generation types.
CORE CAPABILITIES
Seedance 2.5 capabilities
Why flagship productions pick 2.5.
First and last-frame control
Bracket motion with explicit start and end states so logo resolves and transformation payoffs land exactly as boarded.
Reference audio and video
Feed performances and tracks as direction: acting reference drives motion while audio reference drives timing.
Thirty-reference productions
Cast, wardrobe, locations, and style frames combine into one controlled world when every input carries a labeled role.
LIVE SETTINGS
Seedance 2.5 supported settings
These values come from the currently configured 2.5 route, so this table stays aligned with what the generator can actually submit.
- Aspect Ratio
- 1:1 · 4:3 · 3:4 · 16:9 · 9:16 · 21:9 · adaptive
- Resolution
- 480p · 720p · 1080p
- Duration
- 4s · 5s · 10s · 15s · 20s · 25s · 30s
- Reference Image
- 30
- Sound
- ✓
- Reference Audio
- ✓
- Reference Video URL
- ✓
HOW TO USE IT
How to use Seedance 2.5
A director's loop for flagship clips.
Direct on paper first
Storyboard beats, cast references, and the timing map before spending flagship credits.
Bracket the frames
Supply first and last frames so the generation bridges exactly your endpoints.
Stage the references
Upload cast, set, and style inputs with labeled roles plus any reference audio or video.
Review like dailies
Check performance, sync, identity, and design fidelity at full resolution before finaling.
BEST USE CASES
Where Seedance 2.5 works best
Pick 2.5 when the piece has direction, not just motion.
Mini-films
2.5 carries 30-second brand films and lore pieces with composed openings and closings.
Performance-driven scenes
Reference video transfers real acting nuance that text prompts approximate poorly.
Synced productions
Score, dialogue, and effects lock to picture with frame-level intent from reference audio.
World-consistent series
Thirty references sustain recurring casts and locations across episodes without drift.
PROMPT GUIDE
How to prompt Seedance 2.5
Long, specified briefs worthy of the flagship.
Try Seedance 2.5Use the character budget
With up to 30,000 characters, specify blocking, lens, light, and performance instead of compressing intent.
Direct through references
Let reference video carry acting and reference audio carry timing; text then only needs the gaps.
Declare non-negotiables
Mark identity, logo, and design elements as locked so the flagship protects them over unlisted details.
PROMPT EXAMPLES
Seedance 2.5 prompt examples
Starting points for directed productions.
- 01
A fencer advances down a sunlit piste, first frame en garde, last frame victory salute, reference footwork video attached, 20 seconds.
- 02
Noodle chef pulls dough in a steamy kitchen, flour bursts on the drum hit from the reference track, ends on the served bowl close-up, 25 seconds.
- 03
Two astronauts plant a flag on a ridge as the lander glints behind, opening wide, closing on the patch detail, 30 seconds, 1080p.
WHAT TO REVIEW
Seedance 2.5 limitations and review points
Flagship power with flagship costs and complexity.
Highest per-clip cost and longest waits in the Seedance line; rehearse direction on cheaper tiers first.
Thirty references demand real art direction: unlabeled or conflicting inputs produce expensive confusion.
Extreme choreography (crowds, combat, intricate hand work) still needs review at full resolution before delivery.
FAQ