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Seedance 2.0 Fast

Video Generation-30%
bytedance/seedance-2.0-fast

Seedance 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 โ€” text-to-video, image-to-video, and multi-reference input โ€” 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

Providers

BytePlusprovider.type: "byteplus"
From $0.042/s
ResolutionModeAudioPrice / Second
480pText to VideoAny$0.042/s
480pVideo to VideoAny$0.05/s
720pText to VideoAny$0.091/s
720pVideo to VideoAny$0.11/s
All other combinations$0.11/s
Protocols
openai/v1/videos
Volcengineprovider.type: "volcengine"
From $0.042/s
ResolutionModeAudioPrice / Second
480pText to VideoAny$0.042/s
480pVideo to VideoAny$0.05/s
720pText to VideoAny$0.091/s
720pVideo to VideoAny$0.11/s
All other combinations$0.11/s
Protocols
openai/v1/videos

Billed per second of generated video. Supported parameter combinations and prices are determined by the live API and may vary by model version.

Playground

Code Examples

import time
import requests
BASE = "https://api.ofox.run/v1/videos"
HEADERS = {"Authorization": "Bearer YOUR_OFOX_API_KEY"}
# Create the generation task
task = 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,
"provider": {"type": "byteplus"},
# Or: "provider": {"type": "volcengine"}
}).json()
# Poll until the task reaches a terminal state
while True:
task = requests.get(f"{BASE}/{task['id']}", headers=HEADERS).json()
if task["status"] in ("completed", "failed", "cancelled", "expired"):
break
time.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])

Frequently Asked Questions

Seedance 2.0 Fast on Ofox.ai costs from $0.042 per second of generated video. The exact rate depends on resolution, generation mode, and audio. Pay-as-you-go, no monthly fees.