ByteDance's fast, low-cost Seedance 2.5, with sound built in
Seedance 2.5 Flash AI Video Generator: Fast Clips With Sound
Turn a shot note into a cinematic clip with its own sound in minutes, from an ice bird shattering into living frost to a woman laughing among peonies in vertical video, at 20 credits for 5 seconds.
Seedance 2.5 Flash is ByteDance's faster, lower-cost version of Seedance 2.5. It makes video from text, a start frame or a start and end frame, or from up to 10 images, 5 videos and 5 audio tracks, in single takes from 4 to 30 seconds with spoken dialogue. We made every clip on this page on Pixel Dojo from a text prompt, and each one shows its exact prompt so you can start from it. Make yours on Pixel Dojo, where every top video model, six studios and Sensei, the AI director, share one plan. Credits roll over while you are subscribed, and commercial use is included on every plan.
20 credits ($1.25) per 5 s clip at 720p with audio. Included in every plan, from $10/month.
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By Brian Lovett · Updated
Why creators reach for Seedance 2.5 Flash
Seedance 2.5 Flash is the quick, low-cost way to make Seedance 2.5 style clips. It keeps the things people love about Seedance 2.5: text to video, start frame and start plus end frame, reference to video, spoken dialogue and native sound. It costs a third less per second.
That makes it the model for volume. We made these clips on Pixel Dojo at 720p for 20 credits each, so trying five angles on one idea costs less than a single 1080p render. Flash gives you a full cinematic clip with sound in each of them.
When you want the widest reference budget or a 1080p master, Seedance 2.5 is one click away. Many creators sketch every idea on Flash first, then render the winners on Seedance 2.5.
What you can make with Seedance 2.5 Flash, prompts included
Four clips in four genres, each made on Pixel Dojo from a single text prompt at 720p with sound generated alongside the picture: a VFX reveal, vertical video, spoken dialogue and action. We kept every prompt exactly as we wrote it. Tap Use this prompt to start from any of them.
VFX transformation in 720p. A glass-clear ice bird cracks with glowing blue light, bursts into slow motion shards and takes flight as a living frost bird. Start from this prompt for title reveals, product launches or any big before and after moment.
Medium wide shot with a slow push in. A clear ice sculpture of a bird on a stone plinth in a dark hall cracks with glowing blue light, shatters outward in slow motion, and a living bird made of swirling frost and light spreads its wings and lifts off, shards hanging in a single cold spotlight, 35mm lens, rich contrast. Sound: ice cracking, a deep whoosh of wings, crystalline chimes, no music.
Vertical 9:16 for Reels, Shorts and TikTok. She turns, laughs and lifts the peonies while petals drift through warm morning light. Start from this prompt for lifestyle, florist or travel content.
Vertical handheld follow shot. A woman in her twenties with honey blonde hair in a loose ponytail, a white linen shirt and gold hoop earrings walks through a sunlit flower market, turns back to the camera laughing and holds up a bunch of peonies, petals drifting past, warm morning light and soft lens flare, 28mm lens. Sound: market chatter, her laugh, paper wrapping rustling, no music.
Dialogue with native audio. She smiles, looks into the lens and speaks her line while rain taps the glass and the cafe murmurs behind her. Start from this prompt for talking-head scenes, ads and short stories.
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.
Action with real physics. Chalk dust bursts off the glove on impact as sweat flies in one hard spotlight, with the thud of the punch built in. Start from this prompt for sports, fitness and brand films.
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.
Seedance 2.5 Flash vs Seedance 2.5: four prompts, same settings
We ran each prompt on both models at 720p for 5 seconds. Flash made all four for 20 credits each against 30 for Seedance 2.5, and in every pair it finished first. Pick Flash for speed and price, and Seedance 2.5 when you need 1080p.
Same 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.
Seedance 2.5 Flash for 20 credits. A macro product reveal with a clean light sweep across the glass and rings of ripples spreading outward.
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.
Seedance 2.5 for 30 credits. The same macro reveal on the flagship model, a good pick when you want 1080p for a final ad.
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.
Same 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.
Seedance 2.5 Flash for 20 credits. Hand-painted anime color with swaying lanterns and fluttering laundry overhead.
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.
Seedance 2.5 for 30 credits. The same anime scene on the flagship, with room to go up to 1080p.
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.
Same 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.
Seedance 2.5 Flash for 20 credits. A fast, low sweep over the terraces that lifts to reveal the waterfall.
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.
Seedance 2.5 for 30 credits. The same sweep on the flagship model, ready for a 1080p master.
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.
Same 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.
Seedance 2.5 Flash for 20 credits. Sharp footwork, a swinging jacket and a camera that circles him against the glowing skyline.
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.
Seedance 2.5 for 30 credits. The same performance on the flagship, with 1080p available for final delivery.
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.
Flash or Seedance 2.5: which one fits the job
Both models take the same kinds of input. The difference is price, speed and top resolution.
| Spec | Seedance 2.5 Flash | Seedance 2.5 |
|---|---|---|
| Credits per second at 480p | 2 | 3 |
| Credits per second at 720p | 4 | 6 |
| Resolutions | 480p and 720p | 480p, 720p and 1080p |
| Clip length | 4 to 30 s, or auto | 4 to 30 s, or auto |
| Reference files | Up to 10 images, 5 videos and 5 audio tracks | Up to 30 images, 10 videos and 10 audio tracks |
| Best for | Fast, low-cost clips and big batches | 1080p masters and the largest reference sets |
Make a Seedance 2.5 Flash video in three steps
- 1
Write a shot note
Start with the shot size and camera move, then one subject, one action beat, the light and the sounds you want. Put spoken lines in curly braces and name the language first, as in our cafe clip.
- 2
Pick a start and a size
Use text to video, add a start frame or a start and end frame, or add reference images, videos and audio. Choose 480p or 720p, a length from 4 to 30 seconds, and an aspect ratio from 16:9, 4:3, 1:1, 3:4, 9:16 or 21:9.
- 3
Generate and reuse the prompt
Press generate and your clip arrives with sound. Like what you see? Keep the prompt, change one detail and make another take. For 1080p, run the same prompt on Seedance 2.5.
Seedance 2.5 Flash pricing: from 2 credits a second
Seedance 2.5 Flash is included in every Pixel Dojo plan, with plans from $10/month, and credits roll over while you are subscribed. It costs 2 credits per second at 480p and 4 credits per second at 720p. Sound and dialogue come with every clip.
At the settings on this page, a 5 second clip at 720p is 20 credits. The same clip on Seedance 2.5 is 30 credits, so Flash is a third cheaper.
Seedance 2.5 Flash questions
What is Seedance 2.5 Flash?
Seedance 2.5 Flash is ByteDance's faster, lower-cost version of Seedance 2.5. It makes video from text, from a start frame or a start and end frame, or from reference images, videos and audio, with native sound and spoken dialogue. Use it in the browser or through the API on Pixel Dojo.
How much does Seedance 2.5 Flash cost?
It costs 2 credits per second at 480p and 4 credits per second at 720p, so a 5 second clip at 720p is 20 credits. Seedance 2.5 costs 3 and 6 credits per second, which makes Flash a third cheaper. It is included in every Pixel Dojo plan, with plans from $10/month.
Is Seedance 2.5 Flash faster than Seedance 2.5?
Yes. We ran six matching prompts on both models at 720p for 5 seconds, and Flash finished first every time. It is a strong choice when you want to try many ideas quickly.
How long can a Seedance 2.5 Flash clip be?
Each clip runs in one shot from 4 to 30 seconds, or you can let the model pick the length. You can choose 16:9, 4:3, 1:1, 3:4, 9:16 or 21:9, at 480p or 720p.
Does Seedance 2.5 Flash make sound and dialogue?
Yes. Native audio comes with every clip, including spoken dialogue. Put the line in curly braces and name the language, like the cafe clip on this page.
When should I use Seedance 2.5 instead of Flash?
Choose Seedance 2.5 when you want 1080p or the widest reference budget of 30 images. For quick, low-cost clips, Seedance 2.5 Flash is the one to start with.
Video Effects New
Your first video is free. One photo, one click.
310 ready-made effects, from AI Hug and Earth Zoom In to product spins and listing walkthroughs. Upload a photo and press Generate. No prompt to write, and a free account gets 3 a day.
Make your first Seedance 2.5 Flash clip
Write a prompt above or start from any example on this page. One plan covers every top model, six studios and Sensei, and your credits roll over.
Start with Seedance 2.5 Flash