ModelFoldbytedance/seedance-2-fast
Seedance 2.0 is a multimodal AI video model by ByteDance, optimized for fast and realistic video generation. It supports high-quality virtual human video creation with strong multi-shot consistency, enabling more lifelike and cinematic outputs across scenes. With efficient generation speed, Seedance 2.0 typically averages around ~5 minutes per generation, while Seedance 2.0 Fast averages around ~4 minutes - making it a reliable choice for scalable, real-time content production.
Pricing: From 14.63 credits / sec at 480p without a reference video (74 credits for 5 seconds); with reference video 8.5 credits / sec, billed on reference-video seconds + output seconds. Every resolution is in the rate card below.
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Run Seedance 2.0 API with Realistic Human Support on ModelFold
Try Seedance 2.0 API on ModelFold to generate consistent, cinematic AI videos with precise control, including realistic human video—ready for marketing, apps, and production workflows. Use Seedance 2.0 Fast for faster generation, lower cost, and rapid iteration at scale.
Seedance 2.0 API and Seedance 2.0 Fast API Modes on ModelFold
Seedance 2.0 API Standard Mode for Advanced Multimodal Video Creation
Seedance 2.0 API standard mode is designed for high-quality output and stronger creative control. The Seedance 2.0 AI video model supports complex motion, multi-shot generation, and consistent visual results, making it suitable for production-ready video workflows.
Seedance 2.0 Fast API Mode for Rapid Iteration and Scalable Video Output
Seedance 2.0 Fast API is optimized for speed and cost efficiency in seedance ai api workflows. It delivers faster generation with lower cost, making it ideal for prompt testing, batch video creation, and iterative workflows while retaining core capabilities of the seedance 2.0 api.
Create High-Impact Fighting Scenes with Seedance 2.0 API
Dynamic Camera Movement with Seedance 2.0 AI Video Model
Seedance 2.0 API can replicate dynamic camera movement such as tracking, orbit, and fast transitions from reference clips. The Seedance 2.0 AI video model keeps motion smooth and readable, helping teams create high-energy scenes with stable visual flow. For longer-form projects that build on these camera and motion capabilities, creators can step up to Seedance 2.5 on ModelFold, ByteDance's newer model designed for extended generation, native 4K output, and precise local edits.
Realistic Physics and Action Consistency in Seedance AI API
Seedance AI API maintains realistic physics during fast action and complex interactions. With Seedance v2 API, characters, objects, and environments keep consistent timing, weight, and momentum, enabling reliable high-impact motion across multiple shots.
Advanced Multimodal Control in Seedance 2.0 AI API
Precision Camera Movement and Action Replication with Seedance 2.0
Upload a reference video and let Seedance 2.0 replicate blocking, camera paths, and complex motion. Seedance 2.0 AI video model can follow cinematic movement, helping creators reproduce film-style shots with controlled pacing.
Visual Effects and Transition Learning in Seedance 2.0
Seedance 2.0 API learns visual effects, editing rhythm, and transition style from reference clips. Seedance 2.0 recreates cinematic transitions such as whip pans, match cuts, and stylized reveals, helping teams generate reference video AI content with consistent visual language.
Turn Storyboard Ideas into Full Video with Seedance 2.0
Seedance 2.0 AI video generator turns storyboard ideas into complete video clips. Seedance 2.0 connects scenes, fills missing actions, and keeps narrative flow clear for short cinematic storytelling.
Audio Rhythm Guidance with Seedance 2.0 AI API
Seedance 2.0 API accepts music tracks as reference to guide rhythm and pacing. Seedance AI API aligns motion, cuts, and scene energy to beat and mood, enabling reference video AI creation for music videos, ads, and timed sequences.
What’s New in Seedance 2.0 API on ModelFold
Multimodal Input in Seedance 2.0 API for Text, Image, Video, and Audio
Seedance 2.0 API on ModelFold introduces true multimodal control by combining text, image, video, and audio inputs. Seedance 2.0 api supports mixed references and multiple clips per project, enabling precise composition, motion guidance, and more controllable AI video generation.
Multi-Shot Storytelling with Seedance 2.0 AI Video Generator
Seedance 2.0 api upgrades multi-shot storytelling with stable scene flow and consistent pacing. Seedance 2.0 AI video generator maintains character identity and camera logic across shots, making cinematic sequences and narrative video production more reliable.
Precise Reference Control in Seedance 2.0 API
Bytedance seedance 2.0 api shifts workflow from prompt guessing to reference-driven creation. Seedance ai api extracts motion, composition, camera language, and style from source media, then replicates those traits across new scenes with higher precision.
Native Audio Support in Seedance AI API for Lip-Sync and Beat Matching
Seedance 2.0 api includes native audio generation with tight audio-visual sync. Seedance ai api aligns dialogue, rhythm, and sound effects with on-screen motion, supporting lip-sync, beat-matched editing, and more realistic audiovisual storytelling.
Natural Motion and High-Impact Action in Seedance 2.0
Seedance 2.0 produces natural movement with stronger physics awareness, so characters and objects behave realistically. It also handles high-impact motion like fast camera moves and action scenes while keeping timing and stability consistent.
Flexible 4–15s Duration Control in Seedance V2 API
Seedance v2 api provides flexible 4–15 second duration control for short-form production. Seedance 2.0 api lets creators set exact timing for ads, social clips, and product videos while keeping transitions, rhythm, and narrative pacing aligned.
Quick Start with Seedance 2.0 API Online Test
- 1
Try Seedance 2.0 AI Video Generator in ModelFold Playground
Start in ModelFold Playground to try Seedance 2.0 AI video generator without setup. Upload reference images, video, or audio, add a short prompt, and preview results to understand how seedance 2.0 api handles motion, style, and scene consistency.
- 2
Get API Access for Bytedance Seedance 2.0 API Integration
Create an API key in ModelFold console to enable bytedance seedance 2.0 api access. Review quick API docs to see required parameters, reference inputs, and generation options before moving into production workflows.
- ✓
Send Your First Request with Seedance AI API
Use seedance ai api to submit a generation request with prompt and references. Receive video output, refine settings, and export clips for marketing, apps, or automated pipelines powered by seedance v2 api.
What You Can Create with the Seedance 2.0 API
Social Media Content Creation with Seedance 2.0 AI Video Generator
Creators use Seedance 2.0 AI video generator to turn ideas, reference clips, and music into short videos for TikTok, Reels, and YouTube Shorts. Seedance 2.0 api keeps motion, style, and rhythm consistent, helping produce eye-catching content faster.
Brand Marketing and Product Videos Using Bytedance Seedance 2.0 API
Teams use bytedance seedance 2.0 api to create product demos, campaign videos, and ad creatives. Seedance 2.0 api preserves logo details, color style, and scene continuity, making it easier to generate professional marketing videos without complex editing.
Film and Game Pre-Visualization with Seedance 2.0 AI Video Model
Studios use Seedance 2.0 AI video model to turn storyboards, sketches, and reference footage into cinematic previews. Seedance 2.0 api replicates camera movement, character motion, and scene pacing, helping teams plan shots before full production.
Music Video and Rhythm-Driven Content with Seedance AI API
Creators use seedance ai api to generate music videos and beat-matched sequences from audio tracks. Seedance 2.0 api aligns motion, cuts, and transitions with rhythm, enabling fast production of visually synchronized content for campaigns or entertainment.
Why Choose Seedance 2.0 API on ModelFold Platform
Seedance 2.0 and 2.0 Fast on One Endpoint
bytedance/seedance-2 and bytedance/seedance-2-fast both run on POST https://ai.modelfold.online/v1/videos/generations with one ModelFold API key. Seedance 2.0 goes up to 4K, while 2.0 Fast stops at 720p; 720p is the default for both. Pricing for each resolution, with or without a reference video, is shown in the pricing line above and in the rate card of the API section.
First Frames and References Do Not Mix
First-frame image-to-video, first-and-last-frame image-to-video and multimodal reference-to-video cannot be used together, so do not combine first_frame_url or last_frame_url with any reference field. When the first and last frames must match your images exactly, use first-and-last-frame image-to-video.
Audio Is On by Default, and 4K Is H.265
Audio is generated by default; set generate_audio to false in the Playground to turn it off. At the highest resolution, output is encoded as H.265 (HEVC), so make sure your player or pipeline supports it. With reference videos, billing counts the total reference-video duration plus the output duration at a lower per-second rate (each reference video is rounded up to a whole second, and a request never costs less than the same clip without a reference video); with automatic duration (-1), the request is charged for the 15-second maximum. New ModelFold users receive 80 free credits for testing.
Frequently Asked Questions
What is Dreamina’s Seedance 2.0 by ByteDance？⌄
Dreamina’s Seedance 2.0 is ByteDance’s latest multimodal AI video generation model designed to create cinematic, multi-shot videos with synchronized audio from mixed inputs such as text, images, video clips, and music.
What new features does Seedance 2.0 API introduce?⌄
Seedance 2.0 API adds multimodal input, native audio-video generation, and stronger multi-shot consistency. It can combine text, images, video, and audio references to replicate motion, camera style, and rhythm while keeping characters stable across scenes.
How is Seedance 2.0 API different from typical AI video generators?⌄
Unlike standard tools that rely mainly on prompts, seedance 2.0 api uses reference video, images, and audio to control motion, camera behavior, and style. This approach improves consistency, reduces character drift, and delivers more production-ready results.
What is the difference between Seedance 2.0 API and Seedance 2.0 Fast API?⌄
Seedance 2.0 Fast can be understood as a more efficient version of Seedance 2.0, designed for faster generation and lower cost. Seedance 2.0 API focuses more on quality, control, and production-ready video output, while Seedance 2.0 Fast API is better suited for rapid iteration, frequent testing, and scalable video generation workflows.
How many references can I upload in a Seedance 2.0 API project?⌄
Seedance 2.0 API supports multiple reference files in one generation, including images, short video clips, and audio tracks. Using mixed references helps define character appearance, motion patterns, and editing rhythm more precisely.
Does Seedance AI API support voice guidance and lip-sync generation?⌄
Yes. Seedance AI API includes native audio support that can align dialogue, rhythm, and sound effects with on-screen motion. This enables lip-sync, beat-matched editing, and more realistic audiovisual storytelling for marketing or creative content.
What video length and duration options are available in Seedance V2 API?⌄
Seedance v2 api typically supports short-form generation with flexible duration settings, often around 4–15 seconds per clip.
Where can I test Seedance 2.0 API online for free?⌄
You can test Seedance 2.0 API on ModelFold using the built-in Playground. New users receive free credits to try Seedance 2.0 AI video generation, upload references, and preview results before integrating the Seedance AI API into production workflows.
How to create realistic human videos with Seedance 2.0?⌄
You can create realistic human videos with Seedance 2.0 API on ModelFold by describing the character, motion, and scene clearly, or by using image references to guide appearance. This helps improve human consistency, natural motion, and overall video realism.
Does ModelFold support realistic human video with Seedance 2.0 API?⌄
Yes, ModelFold supports realistic human video generation with Seedance 2.0 API. The model is designed to produce natural motion, consistent characters, and cinematic human scenes, making it suitable for ads, storytelling, and creative video workflows.
| Resolution | No reference video | With reference video |
|---|---|---|
| 480p | 74 credits per 5 seconds | 8.5 credits / sec |
| 720p | 155 credits per 5 seconds | 18.75 credits / sec |
Billed per second. The price above is for a 5-second clip at each resolution — longer clips cost proportionally more, and the Playground charges the exact same way.
With reference video(s): cost = the per-second price above × (total reference-video seconds + output seconds). Each reference video is rounded up to a whole second, and the total is never lower than the same clip without a reference video. Reference images and audio add no billable seconds. Duration -1 (auto) is charged as 15 seconds.
curl https://ai.modelfold.online/v1/videos/generations \
-H "Authorization: Bearer $MODELFOLD_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"bytedance/seedance-2-fast","prompt":"...","resolution":"720p","duration":5}'