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Model comparison

Seedance 2.5 Flash vs Seedance 2.5.
Six prompts, side by side.

We ran the same six prompts on both models. Same size, same length, one try each. See the clips, the render times and the credits.

Pricing

The short answer

  • Same prompt language. A prompt written for one works on the other.
  • Flash rendered faster on all six prompts, in 95 seconds on average against 199.
  • Flash costs 20 credits for a 5 second 720p clip. Seedance 2.5 costs 30.
  • Both followed every prompt. Pick Flash to try ideas and Seedance 2.5 for 1080p and larger reference sets.

Try ideas on Flash. Render the keeper on Seedance 2.5 at 1080p with the same prompt.

What is different

Seedance 2.5 FlashSeedance 2.5
Price per second2 credits at 480p, 4 at 720p3 credits at 480p, 6 at 720p, 16 at 1080p
5 second 720p clip20 credits30 credits
Resolutions480p, 720p480p, 720p, 1080p
Reference imagesUp to 10Up to 30
Reference videosUp to 5Up to 10
Audio tracksUp to 5Up to 10
Length4 to 30 seconds, or Auto4 to 30 seconds, or Auto
Sound and spoken linesYesYes

Six prompts, side by side

Each pair uses the same prompt, 720p, 16:9 and 5 seconds. One render each.

A line of dialogue by a cafe window

Seedance 2.5 Flash, 20 credits, 119 s
Seedance 2.5, 30 credits, 160 s

Both follow the prompt. Flash rendered in 119 seconds and Seedance 2.5 in 160. Flash cost 20 credits and Seedance 2.5 cost 30. Flash fits quick tests of a spoken line. Seedance 2.5 fits the final take.

Prompt
Medium close-up with a slow push in. A woman in her late twenties with long dark wavy hair and a cream knit sweater sits by a rain-streaked cafe window, wraps both hands around a steaming cup, looks into the lens with a warm smile and says softly in American English: {I almost didn't come. I'm glad I did.} Soft gray window light on her face, warm amber bokeh behind her, 50mm lens, shallow depth of field. Sound: rain on glass, quiet cafe murmur, no music.

A punch in slow motion

Seedance 2.5 Flash, 20 credits, 84 s
Seedance 2.5, 30 credits, 156 s

Both follow the prompt. Flash rendered in 84 seconds and Seedance 2.5 in 156. Flash cost 20 credits and Seedance 2.5 cost 30. Flash fits trying camera angles for action. Seedance 2.5 fits the version you ship.

Prompt
Low angle slow-motion shot. A woman boxer in her twenties with tight braids and a black sports top throws a hard right cross into a heavy bag, chalk dust bursting off her glove and sweat flying from her brow, a single hard spotlight cutting through haze in a dark gym, 35mm lens, crisp high contrast. Sound: the thud of the punch, a sharp exhale, chains rattling, no music.

A product rising from liquid

Seedance 2.5 Flash, 20 credits, 80 s
Seedance 2.5, 30 credits, 243 s

Both follow the prompt. Flash rendered in 80 seconds and Seedance 2.5 in 243. Flash cost 20 credits and Seedance 2.5 cost 30. Flash fits testing product ideas. Seedance 2.5 fits the hero shot, and it can go to 1080p.

Prompt
Macro slow-motion commercial shot. An unlabeled frosted glass serum bottle with a rose gold cap rises out of rippling milk-white liquid, droplets streaming down its sides and a ring of ripples spreading outward, soft pink backlight and a clean light sweep across the glass, 100mm macro lens, glossy high-end look. Sound: a soft liquid swell and gentle drips, no music.

Anime style on a canal

Seedance 2.5 Flash, 20 credits, 90 s
Seedance 2.5, 30 credits, 197 s

Both follow the prompt. Flash rendered in 90 seconds and Seedance 2.5 in 197. Flash cost 20 credits and Seedance 2.5 cost 30. Flash fits trying art styles fast. Seedance 2.5 fits the finished piece.

Prompt
Hand-painted anime film look, tracking shot from the side. A woman courier in her twenties with a yellow raincoat and a short black bob pedals a bicycle along a canal in a floating market town, paper lanterns swaying and laundry fluttering overhead, her hair and coat whipping in the wind, warm sunset palette with soft cel shading. Sound: bicycle bell, water lapping, distant market chatter, no music.

A fast drone flight

Seedance 2.5 Flash, 20 credits, 95 s
Seedance 2.5, 30 credits, 231 s

Both follow the prompt. Flash rendered in 95 seconds and Seedance 2.5 in 231. Flash cost 20 credits and Seedance 2.5 cost 30. Flash fits scouting a flight path. Seedance 2.5 fits the final render.

Prompt
Aerial drone shot sweeping fast and low over emerald rice terraces at sunrise, skimming past palm trees and rising to reveal a tall waterfall pouring into a misty valley, long golden light rays cutting through the haze, 16mm wide lens, crisp high dynamic range color. Sound: rushing wind and the growing roar of the waterfall, no music.

A dancer on a rooftop

Seedance 2.5 Flash, 20 credits, 103 s
Seedance 2.5, 30 credits, 210 s

Both follow the prompt. Flash rendered in 103 seconds and Seedance 2.5 in 210. Flash cost 20 credits and Seedance 2.5 cost 30. Flash fits trying moves and light. Seedance 2.5 fits the keeper.

Prompt
Full-body shot with the camera slowly circling. A man in his thirties with a short fade and an emerald velvet suit dances with sharp, fluid footwork on a city rooftop at golden hour, his open jacket swinging with each spin, skyline glowing behind him, 24mm lens, warm cinematic color. Sound: his shoes scuffing concrete, city hum below, a light breeze, no music.

Which one to use

  • Use Flash for drafts, social clips, and many tries on the same idea.
  • Use Seedance 2.5 for 1080p, big reference sets and final deliveries.
  • Use both in one flow. Draft on Flash, then finish on Seedance 2.5.

Prompt tips for both models are in the Flash prompting guide and the Seedance 2.5 Prompting Guide.