Seedance 2.0 Fast Text-to-Video

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text-to-video

bytedance/seedance-2.0-fast/text-to-video

Seedance 2.0 Fast (Text-to-Video) generates cinematic videos from text prompts with native audio-visual synchronization, director-level camera and lighting control, and exceptional motion stability — optimized for faster generation at lower cost. Built on ByteDance Seed's unified multimodal architecture.

Input

prompt*

A 19-year-old girl with paint-stained fingers and a overstuffed backpack rides the Trans-Siberian Railway alone through a blizzard, sketchbook open on her lap.
Shot 1: Close-up — her pencil moves furiously across the page, drawing the frozen birch forest blurring past the window, breath fogging the glass beside her face.
Shot 2: Wide shot — the train car is nearly empty, a single dim overhead light swaying, snow pressing against every window, she is the only thing warm and alive in the frame.
Shot 3: Medium shot — an elderly Russian man across the aisle silently sets a cup of tea on her table without a word and returns to his seat; she looks up, stunned.
Shot 4: Close-up on the sketchbook — the drawing is extraordinary, hyperdetailed, and in the corner she has written in tiny letters: day 4. still not scared.
Shot 5: She presses her forehead against the cold window, eyes wide open, watching the endless white world fly past — and very slowly, she begins to smile.
Quiet and immense, the film captures the exact feeling of being 19 and choosing the world over safety.

aspect_ratio

duration

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Idle

您的请求将花费 $0.8 每次运行。

使用 $10 您可以运行此模型大约 12 次。

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README

Seedance 2.0 Fast is the speed-optimized version of ByteDance Seed's latest video generation model. The Text-to-Video mode generates cinematic videos from text prompts with native audio synchronization — faster and at 33% lower cost than the standard version, ideal for rapid iteration and high-volume production.

Key Features

Speed-optimized generation Faster processing for quick turnaround on video projects, perfect for iteration and prototyping.
33% lower cost $0.80 per 5 seconds vs $1.20 for the standard version — ideal for high-volume production.
Unified multimodal architecture Same Seedance 2.0 foundation handling text, image, audio, and video inputs.
Native audio-visual synchronization Generates video with synchronized audio in a single pass.
Director-level control Camera movement, lighting, shadows, and character performance controlled through prompts.
Strong motion stability Coherent motion with stable subjects and fluid transitions.

Parameters

Parameter	Required	Description
prompt	Yes	Detailed description of the cinematic scene
aspect_ratio	No	Output format: 16:9 (default), 9:16, 4:3, 3:4
duration	No	Video length: 5 (default), 10, or 15 seconds

How to Use

Write your prompt — describe the scene with cinematic detail.
Select aspect ratio — 16:9 for widescreen, 9:16 for vertical, 4:3 or 3:4 for classic formats.
Set duration — choose 5, 10, or 15 seconds.
Run — submit and download your video.

Pricing

Duration	Cost
5 s	$0.80
10 s	$1.60
15 s	$2.40

Billing Rules

Rate: $0.80 per 5 seconds
Duration options: 5, 10, or 15 seconds

Best Use Cases

Rapid Prototyping — Quickly iterate on concepts before committing to the standard version.
High-Volume Production — Cost-effective generation for large content libraries.
Social Media Content — Fast turnaround for short-form video needs.
A/B Testing — Generate multiple variations efficiently to find the best creative direction.

Pro Tips

Use Fast for iteration and testing, switch to standard Seedance 2.0 for final quality.
Write prompts like a film director — include lighting, camera angles, and mood.
Start with 5s to iterate, then extend once the look is right.

Notes

Native audio generation included.
Duration options: 5, 10, or 15 seconds.
For highest quality output, consider the standard Seedance 2.0.

Related Models

Seedance 2.0 Text-to-Video — Standard version with highest quality.
Seedance 2.0 Fast Image-to-Video — Fast image-guided video generation.
Seedance 2.0 Image-to-Video — Standard image-guided video generation.