Seedance 2.0: As low as $0.345 per video
Veo3.1 Lite: As low as $0.0575 per video
Viddo AI is an advanced all-in-one AI video and image generation platform that lets you quickly and easily create stunning videos and images from various inputs.
Dreamina-Seedance 2.5 is a next-gen professional multi-modal video generation model from ByteDance Seed Family, fully integrated into the Viddo.ai creative workspace. Built for commercial advertisers, short drama creators, filmmakers, educators and e-commerce designers, it solves core pain points of traditional AI video tools: limited clip length, inconsistent visual identity, weak controllability and poor multilingual compatibility.
Native 30-second long narrative single-shot generation: Output coherent 4–30s video without post-production splicing, fully delivering complete story arcs and emotional beats. It supports high-fidelity timeline extension to stretch short footage while locking consistent characters, scenes and camera movements.
Up to 50 combined multi-modal reference assets per render: Mix images, videos and audio files in one generation task, including exclusive audio-only reference mode to drive visual creation with sound cues. Asset allocation: 30 reference images + 10 reference videos + 10 audio clips.
Professional-grade precise local video editing: Partial repainting, subject replacement, lighting rework, element addition/removal, seamless forward/backward clip extension, with original framing and camera paths fully locked.
Native support for 10+ global languages: Write prompts directly in your native tongue without translation layers. The model accurately executes complex camera choreography, emotional shifts and layered scene descriptions for worldwide creative teams.
Cinematic visual quality upgrade: Physically accurate lighting simulation, ultra-precise camera motion control, lifelike micro-facial expressions, photorealistic skin, fabric and material textures for broadcast-ready footage.
Brand TVC commercials, short drama episodes, e-commerce product reels, educational explainer clips, 3D concept animation, music videos, previsualization for film production.
Seedance 2.5 supports video output ranging from 4 to 30 integer seconds at fixed 24fps cinematic frame rate, exporting MP4 & MOV files. It supports all mainstream aspect ratios: 21:9, 16:9, 4:3, 1:1, 3:4, 9:16, optimized for vertical short videos, wide-screen films and square social media ads.
Long single shots eliminate fragmented post-editing, ideal for complete commercial storytelling and continuous dramatic scenes.
Practical Prompt Template: Home Sofa Commercial Extension
Use @Video1 as base footage, keep the sofa design, color palette, lighting and camera motion identical. Seamlessly extend the clip to a cozy living room scene. A woman in off-white knit loungewear sits on the sofa, covered with cream throw blanket while reading. She gently sets a coffee mug on the side table. A cat jumps onto the sofa, then a child runs in and leans against her as she smiles softly. Night falls, floor lamp turns on, the child and cat cuddle quietly together. Camera slowly pulls back, leaving clean negative space at the end for brand logo display, total runtime 30 seconds.
Extend existing video footage forward or backward with seamless transitional frames, maintaining unbroken consistency of subjects, environments, lighting and camera movement. No frame flickering, character distortion or visual discontinuity.
Practical Prompt Template: Educational Seed Germination Clip Extension
Extend the @Video1 seed germination footage by 5 seconds. A bee flies in and lands on the flower. Camera pushes in for macro close-up of golden pollen grains covering its legs and abdomen. The bee takes flight, camera tracks it to another flower of the same species. Slow-motion shot captures pollen falling from fuzzy body and landing precisely on flower stigma to visualize pollination.
A single generation task accepts up to 50 mixed reference assets with fixed allocation rules:
Reference Images: 0–30 files, max 30MB per file, all mainstream image formats, used to lock fixed subjects (people, products, architecture, environments)
Reference Videos: 0–10 files, MP4/MOV format, max 200MB per file, each clip 2–30s, total combined video runtime ≤ 30s
Reference Audio: 0–10 files, common audio formats, max 15MB per file, each clip 2–30s, total combined audio runtime ≤ 30s
Character & product reference limits: Keep core locked subjects under 5 for maximum stability; use 6–8 clear reference shots for key assets to reduce visual drift. Style reference images can stay unconstrained for creative flexibility.
Optimal video/audio clip length: 5–10 seconds per reference clip delivers highest prompt recognition accuracy. Overly short or long media reduces frame consistency and asset matching precision.
Once media files are uploaded to your Viddo.ai asset library, the system auto-generates unique IDs: @Image1, @Video1, @Audio1.
Standard writing rule: Attach a clear usage description immediately after each referenced asset ID to lock visual binding and avoid asset misalignment.
Standard Correct Syntax Example
mmersive concept short film, use @Image1 seaside villa as scene reference to lock building architecture; slow handheld push-in camera movement, lighting shifts with natural morning daylight.
Multi-Asset Combination Example: Building Assembly Animation
Use @Image1, @Image2, @Image3, @Image4 as structural reference assets, generate full assembly animation of the house from base framework to finished build, consistent proportions and textures across all frames.
Industry-leading sound-driven visual creation workflow. Upload background music or ambient sound effects as @Audio references, the model auto-matches shot rhythm, camera cuts and color grading to audio beats, perfect for music videos, atmospheric short films and soundtrack-aligned commercials.
Retain original camera framing, movement and full clip rhythm while only modifying targeted visual regions. Four core editing workflows supported: partial repaint, subject replacement, global lighting rework, add/remove visual elements.
Lock all original camera movement and composition, swap full-video artistic styles to generate multiple commercial variants efficiently.
Prompt Template
Keep all camera timing and framing from @Video1 unchanged, sequentially switch visual styles: American gritty photorealism, Chinese ink wash animation, black-and-white vintage comic, Japanese anime. All character proportions and body forms remain identical throughout style shifts.
Rewrite full-scene light logic while preserving all objects, characters and camera paths, following real-world physical rules of light direction, falloff and ambient bounce.
Prompt Template
Rewrite harsh midday overhead lighting from @Image1 reference footage into soft sunset side backlight, add natural ambient diffuse reflection, realistic layered skin shading for human subjects.
Delete unwanted objects from footage, AI auto-generates matching native environment texture without blurring, flickering or cross-frame visual inconsistency.
Prompt Template
Remove the drone and edge tracking vehicle in the bottom-left frame, fill empty space naturally with matching savanna, tree branches and golden sunset backlight. Keep giraffes, distant landscape, sunset rim light and original camera composition fully intact. No distortion or unnatural visual artifacts after filling.
Lock scenes, lighting and camera paths, only adjust facial features, age progression and emotional micro-expressions to render subtle tears, smiles and restrained emotional shifts.
Prompt Template
Preserve all camera framing, lighting and performance timing from @Video1. Gradually age the female lead from her 20s to 60s; shift her reserved sad emotion into gentle warmth, tears roll down eye corners, she slowly lifts the corners of her mouth and reveals a relieved smile through soft tears.
Seedance 2.5 moves beyond simple filter-based lighting to fully simulate real-world light physics: directional falloff, surface bounce, contact shadows and environmental reflection layers.
Transparent, lifelike eye highlights without artificial plastic texture
Layered contact shadows, environmental bounce light and reflective surface rendering
Consistent light logic for outdoor sunrise/sunset, indoor floor lamp and studio softbox scenes
Execute full cinematic camera instructions with zero jitter, frame loss or shot drift during movement:
Basic camera operations: push in, pull back, horizontal pan, vertical tilt, object tracking
Compound camera operations: crane lift, orbital rotation, multi-path follow tracking
Narrative Camera Prompt Template
Two young children walk side-by-side across wild highland terrain. Distant strange sound echoes, they stop and slowly look upward to the sky with tense, uneasy expressions. A shooting star streaks across the sky, camera pans smoothly following its trajectory, then pulls back wide to watch the star vanish over the horizon.
The model deeply interprets character emotional intent and renders ultra-subtle facial changes: eye micro-shifts, slight lip movement, realistic skin texture and hair highlights. Long continuous emotional shots deliver authentic, immersive human performances ideal for film scenes and character-focused advertising.
Close-Up Shot Template
Young East Asian woman sits by study window at dusk, slow push-in close-up shot capturing the full emotional shift from teary eyes to soft smile as she reads a letter. Letter focus gradually blurs in sync with emotional beats.
30s Home Furniture Commercial Template
30-second 16:9 sofa advertisement, first 15 seconds feature product close-ups in white studio lighting, second half shifts to warm cozy living room environment. Cast includes one woman, one child and a cat, soft natural photorealistic lighting. Lock sofa product design via @Image1 reference, consistent material and color across all frames, clean logo placeholder at the end frame.
Reusable SKU Product Reel Template
Use @Image1 soda beverage as core product reference, @Image2 indoor lifestyle scene as environment reference. Generate sequential shot list: product macro close-up → medium handheld shot → wide lifestyle layout shot. Maintain 100% consistent soda packaging across all frames with smooth camera transitions for bulk e-commerce listing videos.
3D Animated Snack Commercial Template
Bright, transparent 3D cartoon visual style, starring an expressive desert horned lizard with detailed fur texture and dreamy shallow depth of field. Opening scene on hot desert sand, lizard flicks tongue for playful interaction, soft natural diffused lighting, blending photorealism and childlike whimsy for snack promotional reels.
30s continuous single-shot busy restaurant kitchen scenes, multi-character group ballroom dance wide shots
Music video production, film previsualization, age progression character editing
3D gray model to photoreal render: upload architectural/product 3D mesh references, generate cinema-grade renders with physical shadows, ambient occlusion and reflective surfaces.
30s multi-language cultural heritage museum documentary, synchronized multilingual voiceover and step-by-step visual guides
Stop-motion animation shorts for currency evolution timelines, biological growth process explainer videos
Industrial mechanical demo editing: replace robotic arms, remodel background environments while retaining original camera motion paths.
| Parameter | Dreamina-Seedance 2.5 Specifications |
|---|---|
| Aspect Ratio | 21:9 / 16:9 / 4:3 / 1:1 / 3:4 / 9:16; video edit & timeline extension tasks inherit original asset aspect ratio automatically |
| Resolution | 480p, 720p; higher resolution support coming in future updates |
| Frame Rate | Fixed 24fps cinematic standard frame rate |
| Video Duration | Integer length 4–30 seconds; edited clips inherit original source runtime |
| Export Format | MP4, MOV dual file output |
| Concurrent Render Limits | Personal accounts: 3 concurrent tasks; Enterprise commercial accounts: 10 concurrent tasks |
| Frame Render Speed | Personal plan: 180 frames per minute; Enterprise plan: 600 frames per minute |
| Maximum Reference Assets | Total 50 mixed files: 30 images + 10 videos + 10 audio clips |
Q1: How many reference images can I upload to Seedance 2.5?
A: You can upload up to 30 reference images, paired with 10 reference videos and 10 audio clips, totaling 50 multi-modal reference assets per generation task. Audio-only reference mode is supported for sound-led visual creation.
Q2: What is the maximum video length Seedance 2.5 can generate?
A: Native single-shot generation supports up to 30 continuous seconds. Short footage can be extended via timeline extension tools for complete narrative TVC and short drama content.
Q3: How to use the @ reference syntax inside Viddo.ai?
A: After uploading media to your asset library, the platform auto-assigns unique IDs like @Image1 or @Video1. Add a sentence explaining each asset’s purpose right after the ID to lock consistent visual identity in rendered footage.
Q4: Does Seedance 2.5 support non-English prompts?
A: The model natively supports over 10 global languages including Chinese, English, Japanese, Korean and Southeast Asian languages. No translation middleware required, with vastly improved complex prompt comprehension accuracy.
Q5: Can I partially edit finished AI-generated videos?
A: Yes, local editing tools support partial repainting, subject replacement, lighting rework and unwanted object removal. Original camera framing, shot timing and scene composition stay fully locked without full re-rendering.