Bytedance Seedance 2.0 Fast Text To Video

Bytedance Seedance 2.0 Fast Text To Video

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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 Seed’s unified multimodal architecture.

Features

Seedance 2.0 Fast Text-to-Video

Seedance 2.0 Fast is the speed-optimized version of 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

How to Use

1. Write your prompt — describe the scene with cinematic detail.
2. Select aspect ratio — 16:9 for widescreen, 9:16 for vertical, 4:3 or 3:4 for classic formats.
3. Set duration — choose any duration from 4 to 15 seconds.
4. Optionally add references — provide reference images, videos, or audios for style guidance.
5. Run — submit and download your video.

Pricing

Billing Rules

• Base rate (480p): $0.50 per 5 seconds (without reference videos), $1.00 with reference videos (2x base)
• 720p: 2x the 480p price
• 1080p: 5x the 480p price (2.5x the 720p price)
• Duration range: 4-15 seconds (continuous)

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 range: 4-15 seconds (continuous).
• 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.

# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/bytedance/seedance-2.0-fast/text-to-video" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "aspect_ratio": "16:9",
    "resolution": "720p",
    "duration": 5,
    "enable_web_search": false
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"