Seedance 2.0 Fast
Video Generationbytedance/seedance-2.0-fastSeedance 2.0 Fast is the speed-optimized variant of ByteDance's Seedance 2.0, built for latency-sensitive batch creation. It retains the full multimodal input capabilities of the standard version — text-to-video, image-to-video, and multi-reference input — at 480p resolution with faster inference. Accessible via the OpenAI-compatible protocol.
Duration
4-15s
Audio
Supported
Released
2026-04-14
Generation Modes
t2vText to Videoi2vImage to Videov2vVideo to Video
Resolutions
480p720p
Aspect Ratios
16:99:161:1adaptive
Capabilities
Video Input
Available Providers
VolcengineBytePlus
Supported Protocols
openai
Pricing
From $0.06/s| Resolution | Mode | Audio | Price / Second |
|---|---|---|---|
| 480p | Text to Video | Any | $0.06/s |
| 480p | Video to Video | Any | $0.07/s |
| 720p | Text to Video | Any | $0.13/s |
| 720p | Video to Video | Any | $0.15/s |
| All other combinations | $0.15/s | ||
Billed per second of generated video. Supported parameter combinations and prices are determined by the live API and may vary by model version.
Code Examples
import timeimport requestsBASE = "https://api.ofox.run/v1/videos"HEADERS = {"Authorization": "Bearer YOUR_OFOX_API_KEY"}# Create the generation tasktask = requests.post(BASE, headers=HEADERS, json={"model": "bytedance/seedance-2.0-fast","prompt": "A golden retriever running on the beach at sunset","duration": 4,"resolution": "720p","generate_audio": True,}).json()# Poll until the task reaches a terminal statewhile True:task = requests.get(f"{BASE}/{task['id']}", headers=HEADERS).json()if task["status"] in ("completed", "failed", "cancelled", "expired"):breaktime.sleep(10)# Prefer mirror_urls (persistent) then fall back to unsigned_urls (24h)print((task.get("mirror_urls") or task.get("unsigned_urls") or [None])[0])
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Frequently Asked Questions
Seedance 2.0 Fast on Ofox.ai costs from $0.06 per second of generated video. The exact rate depends on resolution, generation mode, and audio. Pay-as-you-go, no monthly fees.
Seedance 2.0 Fast supports: Text to Video, Image to Video, Video to Video, 480p / 720p, 4-15s, 16:9 / 9:16 / 1:1 / adaptive. The exact supported combinations are returned by the API.
Create a generation task via POST https://api.ofox.run/v1/videos with your Ofox API key, then poll the task status until it completes and download the video from mirror_urls (or unsigned_urls).
Seedance 2.0 Fast supports the following capabilities: Video Input. Access all features through the Ofox.ai unified API.