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One continuous shot, sound included, three ways in. Every spec, every credit price and twenty copy-ready prompts for the longest single take on Imagera — all on this page.
Seedance 2.5 is an AI video model on Imagera that writes one continuous take of up to 30 seconds in a single pass — no stitching — with natively synchronized audio, at up to 720p. It runs in three modes: text to video, image to video with optional first and last frames, and reference to video with up to 50 reference files.
What is Seedance 2.5?
Seedance 2.5 is a video generation model available on Imagera that writes one continuous take of up to 30 seconds in a single pass, with natively synchronized audio. It runs in three modes — text to video, image to video, and reference to video — and you can try all three in the Imagera Sandbox.
How long can a single video be?
Up to 30 seconds in one continuous pass — no stitching between cuts. The duration presets are 4, 5, 10, 15, 20, 25, 30 seconds, and the price scales per second, so shorter drafts cost proportionally less.
What resolutions does it support?
480p and 720p, with 720p as the default. The model tops out at 720p today — this page will update if higher resolutions ship.
Does it generate sound?
Yes — synchronized audio (dialogue, effects, ambience) is generated natively alongside the video by default, and you can switch it off. Audio adds no extra credits.
| Modes | Text to Video · Image to Video · Reference to Video |
|---|---|
| Longest single take | 30 seconds in one pass — no stitching between cuts |
| Duration presets | 4, 5, 10, 15, 20, 25, 30 seconds (default 5s; price scales per second) |
| Resolutions | 480p · 720p (default 720p) |
| Aspect ratios | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16, or let the model decide. Image mode has no picker — the start frame dictates the geometry. |
| Audio | Native synchronized audio — dialogue, effects and ambience, generated with the video. On by default, can be switched off. No extra credits either way. |
| Prompt length | Up to 30,000 characters — full shot lists fit |
| Frames (Image mode) | 1 start frame required, optional closing frame — max 2 images, 30 MB each. The clip animates the full way between them. |
| References (Reference mode) | Up to 30 images, 10 video clips and 10 audio clips — 50 files total. Call them out as @Image1, @Video1, @Audio1. |
| Reference file rules | Videos up to 200 MB each, combined footage under ~30s. Audio up to 15 MB, ~2–30s clips; an audio reference needs at least one image or video reference alongside it. |
| Delivery speeds | Standard (default) and Ultra Fast — Ultra Fast is priced higher at every resolution |
| Extras | Optional live web results lookup and a mature-content filter, both toggleable per run |
Half-minute cinematic video with native synced audio
Writes a full 30-second scene in a single pass — no stitching, no drifting characters between cuts. Native synchronized audio covers dialogue, effects and ambience, and camera language, physics and multi-subject staging all hold across the whole take. Up to 30 seconds at 720p. Built for trailers, product films and story-driven ads that need to run longer than a loop.
Turn one still into a 30-second cinematic take
Give it a starting frame — and optionally a closing frame — and it animates the whole way between them with native synchronized audio, holding your subject's look and lighting for the full run. Up to 30 seconds at 720p. Ideal for stretching a single product shot, portrait or illustration into a finished clip.
Up to 50 references — images, video and audio
Feed it up to 30 images, 10 video clips and 10 audio clips at once — 50 files in total — and call them out in your prompt as @Image1, @Video1, @Audio1. Lock a character's face from photos, borrow motion from a clip, and match rhythm to a track, all in one generation. Up to 30 seconds at 720p. The tool for brand assets and recurring characters that have to look identical every time.
| Resolution | 4s | 5s | 10s | 15s | 20s | 25s | 30s |
|---|---|---|---|---|---|---|---|
| 480p | 80 | 100 | 200 | 300 | 400 | 500 | 600 |
| 720p | 175 | 215 | 430 | 645 | 860 | 1075 | 1290 |
| Resolution | 4s | 5s | 10s | 15s | 20s | 25s | 30s |
|---|---|---|---|---|---|---|---|
| 480p | 130 | 160 | 315 | 475 | 630 | 790 | 945 |
| 720p | 255 | 315 | 630 | 945 | 1260 | 1575 | 1890 |
All prices are in credits and always land on multiples of 5. Price scales with duration and resolution — the cheapest run is 4s at 480p (80 credits), the full 30-second take at 720p is 1290 credits on Standard speed. Audio and reference files add nothing.
Credits come in packs — see credit packs. No subscription required.
Most AI video tops out around 5–15 seconds, so anything longer becomes a stitching job: generate, cut, regenerate, and hope the character, light and pacing survive each seam. They usually do not — faces drift, the grade shifts, and the soundtrack gets bolted on in post.
Seedance 2.5 attacks exactly that: one pass writes the whole take — up to 30 seconds — so camera language, physics and your subject hold from the first frame to the last, and the audio is generated in sync rather than added afterwards.
Copy any of these into the Sandbox as a starting point — each one exercises something this model is specifically good at.
Describe one continuous camera journey — not a cut list. Name the audio you want; it is generated in sync.
A lone astronaut trudges slowly across crimson sand dunes at golden hour, footprints trailing behind. Slow dolly push-in, volumetric backlight, gentle wind lifting fine dust. Cinematic photorealistic, 16:9.
The starter prompt from the Imagera prompt library.
A serene beach at sunset with waves gently crashing on the shore, palm trees swaying in the breeze, and seagulls flying across the orange sky
A simple single-scene establishing shot.
30-second single take: a barista opens a small café at dawn. She flips the sign, steam rises from the first espresso, morning light slides across the counter as the camera drifts from the doorway to a close-up of the cup. Ambient sound: grinder hum, soft street noise, a bell over the door. No cuts.
Exercises the full 30-second single pass plus ambient audio.
Product film, 21:9: a matte-black wristwatch rotates on a stone plinth. Macro orbit, hard rim light tracing the bezel, dust motes in a single beam. At 10 seconds the second hand ticks in sync with a low percussive score. Cinematic, shallow depth of field.
Widescreen 21:9 with a timed, synced audio beat.
Two chess players in a rain-lit train carriage. One says, 'Your move.' The other smiles and topples her own king. Handheld two-shot, then a slow push past the window as the city lights streak by. Dialogue clearly audible over the rain and rail rhythm.
Dialogue plus multi-subject staging.
Vertical 9:16 ad: a runner crests a foggy hill at sunrise, breath visible, footsteps and heartbeat building in the mix. Camera tracks alongside, then arcs to a front low-angle hero shot. Warm backlight, photorealistic, energetic pace.
Vertical format with audio-driven pacing.
A paper boat rides a rain-swollen gutter stream through a neon-lit night market, camera skimming the water's surface behind it. It survives a mini waterfall at a drain edge and beaches on a grate. Physics-accurate water, reflections of stall signs, street chatter and rain in the audio bed.
Pushes physics and camera language across one take.
Upload a start frame (and optionally a closing frame). The clip keeps its look and animates the full way between them.
The subject in the image gradually turns their head toward the camera and smiles. Soft handheld tracking, shallow depth of field, warm window light. No other motion in the frame.
The starter prompt from the Imagera prompt library.
Animate the bottle in the image: condensation beads slowly roll down the glass, a soft studio light sweeps left to right, and the label catches a highlight at the midpoint. Lock the camera; keep the background and label text exactly as in the still.
Controlled product motion that preserves the source look.
Starting from the provided frame, the camera pulls back slowly to reveal the full workshop around the craftsman, wood shavings drifting in the light shaft. Ambient sounds of sanding and a distant radio. End on a wide static shot.
A single start frame with camera and ambience direction.
Use the first image as the opening frame and the second image as the closing frame. Transition between them as one continuous dolly move through the corridor, lights flickering on section by section, footsteps echoing.
First-and-last-frame arc in one continuous move.
Bring the illustrated character to life: she blinks, brushes hair from her face, and the painted clouds behind her drift slowly. Keep the exact art style, line weight and palette of the source image throughout all 15 seconds.
Stretches a single illustration into a finished clip.
The dish in the photo steams gently as a hand enters frame and drizzles sauce in a spiral. Macro top-down, then a slow 30-degree tilt to a hero angle. Sizzle and kitchen ambience in the audio. Nothing else changes.
Single-subject motion with everything else locked.
Attach up to 50 files and address each one in the prompt — @Image1, @Video1, @Audio1 — saying what it contributes.
@Image1 is our founder, @Image2 and @Image3 show our product from front and side. She walks through a sunlit studio holding the product, presents it to camera and says, 'This took us three years.' Keep her face exactly as in @Image1 and the product's proportions from @Image2. 16:9, warm daylight.
Face lock plus product lock in one generation.
Recreate the camera move from @Video1 — the slow rising crane shot — but over the city skyline in @Image1 at dusk. Match the pacing and grade of @Video1; add distant traffic and wind in the audio.
Borrow motion from a clip, apply it to a new scene.
Cut a rhythmic product montage of the sneaker in @Image1 through @Image6, with every camera hit landing on the beat of @Audio1. Studio black background, single hard spotlight, 9:16 vertical.
Beat-matched montage — audio references need at least one image or video reference.
Use @Image1 as the first frame and @Image2 as the last frame. Between them, the character from @Image3 crosses the bridge in a storm, coat snapping in the wind. Continuous take, no cuts.
First/last-frame control emulated inside Reference mode.
@Image1 through @Image8 are the same mascot from different angles. Animate it doing a victory dance in the office from @Image9, moving like the dancer in @Video1, timed to @Audio1. Keep the mascot's colors and proportions identical in every frame.
Multi-angle character lock — the mode's signature trick.
Match the speaker in @Image1 to the voice in @Audio1: she delivers the line to camera in a bright podcast studio, lips synced to the track, gentle push-in over 10 seconds. Frame 16:9, soft key light from camera left.
Pairing a voice reference with a face reference.
Continue the scene from @Video1: after the car door closes, the driver from @Image1 pulls away down the coastal road. Same lens, same color grade, same engine tone continuing from the clip's audio.
Continuation of existing footage — combined reference video stays under ~30s.
The model's edge is a single 30-second pass with no stitching. Describe a camera journey — "drift from the doorway to a close-up" — instead of "scene 1 / scene 2".
A 5-second draft at 480p is 100 credits against 215 at 720p — less than half. Iterate the prompt cheaply, then re-run the keeper at 720p.
It is the cheapest run the model can do — 80 credits at 480p on Standard speed — and exists precisely so the shortest length is buyable.
Audio is generated natively and synced by default. Put dialogue lines in quotes, name the ambience, and time the beats ("at 10 seconds the hand ticks in sync") instead of adding music in post.
There is no aspect-ratio control there — the start frame dictates the output geometry. Frame your still exactly how you want the video framed.
With a first and a last frame the model animates the entire arc between them — product reveals, before/after shots, A-to-B camera moves.
@Image1, @Video1, @Audio1 — and say what each contributes ("face from @Image1, motion from @Video1, rhythm from @Audio1"). A file the prompt never mentions is wasted signal.
Up to 30 reference images fit in one job, so 6–10 shots of the same face or mascot from different angles is affordable — and is exactly what Reference mode is built for.
All reference videos combined must stay under ~30 seconds (each clip up to 200 MB), and any audio reference needs at least one image or video reference alongside it.
You use one or the other in a single generation. Need both? In Reference mode, name a reference image as the first or last frame in the prompt.
The cap is 30,000 characters — a full shot list with timing beats, light direction and sound cues fits easily, and the model holds it across the whole take.
Each run is unique — there is no seed input on this generation. When something has to look identical across runs, pin it with reference images instead of rerolling.
Open the Imagera Sandbox and select Seedance 2.5 — or the Reference variant if you are bringing files.
Type a prompt, attach a start frame, or add reference files and address them as @Image1, @Video1, @Audio1. Describe a single continuous shot and the audio you want.
Test at 4s/480p from 80 credits, then re-run the keeper at 720p — up to the full 30-second take.
A half-minute hero film from a shot list — orbits, macro passes and a synced score, in one pass.
Story beats that need to run longer than a loop, with dialogue and ambience generated in sync.
Lock a mascot or spokesperson from up to 30 reference photos so it looks identical in every clip.
Attach a track as @Audio1 and land every camera hit on the beat — vertical 9:16 included.
Stretch one product shot, portrait or illustration into a finished clip that keeps its exact look.
Feed a clip as @Video1 and extend the scene with the same lens, grade and sound.
| Model | Max duration | Resolutions | Modes | References | Credits | Try it |
|---|---|---|---|---|---|---|
| Seedance 2.5This model | 30s single take | 480p · 720p | Text · Image · Reference | 30 images · 10 clips · 10 audio (50 max) | 215 credits · 5s at 720p | Sandbox |
| Seedance 2.0Previous generation | 15s | 480p · 720p · 1080p | Text · Image · Reference | 9 images · 3 clips · 3 audio | 145 credits · 5s at 720p | Sandbox |
| Seedance 2.0 FastBudget tier | 15s | 480p · 720p · 1080p | Text · Image · Reference | 9 images · 3 clips · 3 audio | 90 credits · 5s at 720p | Sandbox |
| Seedance 1.5 ProCinematic lens work | 12s | 480p · 720p · 1080p | Text · Image | — (2 keyframes in Image mode) | 35 credits · 4s at 720p | Sandbox |
Every fact and credit figure in this table is read from the same registry the studio uses. All four models share native synchronized audio.
Seedance 2.5 is available through the Imagera API as Imagera Video Cinema — Long Form. The three modes map to three endpoints — same credits as the studio, billed per second.
Imagera Video Cinema — Long Form
POST /v1/queue/imagera-video-cinema-long-formWrites a continuous take of up to 30 seconds in one pass, with natively synchronized audio, at 480p or 720p.
Imagera Video Cinema — Long Form From Image
POST /v1/queue/imagera-video-cinema-long-form-from-imageExtends a still — optionally between a chosen first and last frame — into a single take of up to 30 seconds with synchronized audio.
Imagera Video Cinema — Long Form From References
POST /v1/queue/imagera-video-cinema-long-form-from-referencesBuilds up to 30 seconds of video from as many as 50 reference files — images, clips and audio — keeping characters and products consistent throughout.
Endpoint schemas, keys and quickstarts live in the developer docs.
Imagera AI Team
Unified AI creation platform
Seedance 2.5 is a video generation model available on Imagera that writes one continuous take of up to 30 seconds in a single pass, with natively synchronized audio. It runs in three modes — text to video, image to video, and reference to video — and you can try all three in the Imagera Sandbox.
Up to 30 seconds in one continuous pass — no stitching between cuts. The duration presets are 4, 5, 10, 15, 20, 25, 30 seconds, and the price scales per second, so shorter drafts cost proportionally less.
480p and 720p, with 720p as the default. The model tops out at 720p today — this page will update if higher resolutions ship.
Yes — synchronized audio (dialogue, effects, ambience) is generated natively alongside the video by default, and you can switch it off. Audio adds no extra credits.
In Reference mode: up to 30 images, 10 video clips and 10 audio clips, capped at 50 files total. You address each one in the prompt as @Image1, @Video1 or @Audio1 and say what it contributes.
Yes. Image mode takes a required start frame and an optional closing frame (up to 30 MB each) and animates the entire arc between them. Reference mode is a separate workflow, but it can emulate the same control — name a reference image as the first or last frame in the prompt.
From 80 credits for the shortest 4-second run at 480p, up to 1290 credits for the full 30-second take at 720p on Standard speed. The default 5-second clip at 720p is 215 credits. Ultra Fast delivery is priced higher at every resolution, and every price lands on a multiple of 5 credits.
Text and Reference modes offer 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 — or you can let the model decide. Image mode has no aspect-ratio picker: the start frame dictates the output geometry, so crop your still first.
No — each run is unique, as this generation has no seed input. When something must look identical across runs (a face, a mascot, a product), pin it with reference images in Reference mode instead.
Yes — as Imagera Video Cinema — Long Form (imagera-video-cinema-long-form), with sibling endpoints for the image and reference modes. Same credit prices as the studio. See the developer docs at imagera.ai/developers.
Pick it from the model rail, paste a prompt from this page, and watch one continuous take come back with its own soundtrack.
✓ Pay in credits, only for what you run — no subscription required
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