Seedance 2.0 Fast Reference to Video

Name: Seedance 2.0 Fast Reference to Video
Author: Bytedance

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

ByteDance's most advanced reference-to-video model in its fast tier delivering lower latency and cost without compromising on cinematic output, native audio, multi-shot editing, and director-level camera control for professional-grade video creation.

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Base price: $0.59USD / run
Execution: async
Model type: video
Input fields: 7

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Playground

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Input

Prompt(string)

The text prompt to generate a video from.

Image URL or upload(array)

Upload

PNG, JPEG, WebP, or GIF · 20 MiB maximum each

The URLs of reference images to guide video generation.

Videos(array)

The URLs of reference videos to guide video generation. Up to 3 MP4 or MOV files, 2-15 seconds combined duration, under 50 MB total.

Audios(array)

The URLs of reference audio files to guide video generation.

Duration(integer)

The duration of the generated video in seconds. Allowed values: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.

Aspect Ratio(string)

The aspect ratio of the generated video. Allowed values: 16:9, 9:16, 1:1, 4:3, 3:4.

Resolution(string)

The resolution of the video to generate. Allowed values: 480p, 720p.

OutputReady

Your output will appear here

Complete the inputs, then click Run.

Specifications

Pricing

Base price: $0.59 / run
Billing formula: (usage.total_seconds ?? ((params.duration ?? 5) == 'auto' ? 5 : (params.duration ?? 5))) * ((params.resolution ?? '720p') == '480p' ? 0.052700296736 : (params.resolution ?? '720p') == '720p' ? 0.118575667656 : (0 / 0)) + (params.has_input_videos ? usage.input_video_seconds : 0) * ((params.resolution ?? '720p') == '480p' ? 0.031335311573 : (params.resolution ?? '720p') == '720p' ? 0.070504451039 : (0 / 0))

Context & modalities

Input: Schema-defined
Output: video

Capabilities

Chat: Not supported
Vision: Not supported
Reasoning: Not supported
Structured output: Not supported
Function calling: Not supported
Audio input: Not supported

Access

Provider: Bytedance
Model ID: bytedance/seedance/2.0/fast/reference-to-video
Execution: async
API: Unified Run API
Endpoint: /v1/run

API README

Seedance 2.0 Fast Reference to Video

ByteDance's fast-tier reference-to-video model — generates video from multiple reference inputs (images, videos, audio) with lower latency and ~20% cost savings.

Need higher resolution (1080p)? Try Seedance 2.0 Reference to Video.
Need text-only generation? Try Seedance 2.0 Fast Text to Video.
Need image-driven generation? Try Seedance 2.0 Fast Image to Video.

Highlights

Lower latency — Optimized for speed, ideal for iterative workflows and rapid prototyping.

Multi-reference input — Combine images, videos, and audio references to guide generation.

Native audio generation — Automatically creates synchronized sound effects and ambient audio.

Up to 720p — Supports 480p and 720p output (1080p not available in fast tier).

Pricing

Non-4K rates use Volcengine's non-promotional list price converted at 1 USD = 6.74 CNY. All 4K output rates use the confirmed reference price.

Resolution	Output price per second	Input-video price per second
480p	$0.05	$0.03
720p	$0.12	$0.07

Default: 5 output seconds at 720p = $0.59. Video references add the input-video rate using the server-probed trusted aggregate input duration. Only the exact Seedance 2.0 standard, Fast, and Mini reference-to-video modes and Seedance 2.5 reference-to-video mode, each with non-empty videos, explicitly use the isolated lenient-duration policy; the default media probe, Webhook validation, empty-video requests, and every other model or caller remain strict. Every legal domain in this isolated policy uses the system resolver, standard HTTP transport, and ProxyFromEnvironment without all-address public-DNS validation, IP pinning, or DNS-rebinding protection. Each redirect hop repeats the base URL and redirect validation. Invalid URL or host, redirect-policy, count-limit, per-item or aggregate size-limit, parser-resource-limit, and successfully parsed aggregate duration-limit failures fail closed. All other fixed failures—dns_unavailable, connect_error, network_timeout, tls_error, http_status, download_error, empty_body, mime_mismatch, magic_mismatch, unsupported_media, malformed_media, and duration_unavailable—use the 15-second family cap for the whole request once, not per video. Logs and errors expose only fixed stage/reason, video index/count, host hash, bytes, elapsed time, fallback marker, and policy version; complete URLs, queries, signatures, response bodies, and media content remain redacted. New requests freeze trusted-probe policy v4; existing v3, v2, and legacy predictions retain their frozen settlement semantics. This isolated application policy requires no new server, Kubernetes, proxy, egress, or environment configuration. Image and audio references do not add this video-input charge. Audio generation is included at no extra cost.

Technical Specs

Spec	Value
Input	Images + videos + audio + optional text
Output	MP4 video with optional audio
Resolution	480p / 720p
Aspect ratios	16:9, 9:16, 1:1, 4:3, 3:4, 21:9
Duration	4–15 seconds
Execution	Async (submit → poll for result)
Typical latency	1–5 minutes

Seedance 2.0 Reference to Video — Standard version with 1080p support
Seedance 2.0 Fast Text to Video — Fast text-driven generation
Seedance 2.0 Fast Image to Video — Fast image-driven generation

Start building

Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

Production API

Unified Run API endpoint

https://api.sandbase.ai/v1/run

Model ID

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

# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/run" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "bytedance/seedance/2.0/fast/reference-to-video",
  "images": [
    "https://static.sandbase.ai/examples/bfl/flux-1/fill/input_image_0.jpeg",
    "https://static.sandbase.ai/examples/alibaba/wan/2.2/animate/replace/input_image_0.png"
  ],
  "prompt": "Room is slowly getting filled from empty state to fully organized with furnitures. Camera is fixed timelapse.",
  "duration": 5,
  "resolution": "720p"
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
  status=$(printf '%s' "$result" | jq -r .status)
  case "$status" in completed|failed|timeout) break ;; esac
  sleep 2
  result=$(curl --fail-with-body --silent \
    -H "Authorization: Bearer $SANDBASE_API_KEY" \
    "https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"

Choose your model

Compare models

All language models

Model	Context	Input / 1M	Output / 1M	Released
Seedance 2.0 Fast Reference to VideoThis model `Bytedance`	—	—	—	Apr 1, 2026
Seedance 2.5 Image to Video `Bytedance`	—	—	—	Jul 1, 2026
Seedance 2.5 Reference to Video `Bytedance`	—	—	—	Jul 1, 2026
Seedance 2.5 Text to Video `Bytedance`	—	—	—	Jul 1, 2026
Seedance 2.0 Mini `Bytedance`	—	—	—	Jun 24, 2026
Seedance 2.0 Mini Image to Video `Bytedance`	—	—	—	Jun 24, 2026

Seedance 2.0 Fast Reference to Video

Playground

Your output will appear here

Specifications

Pricing

Context & modalities

Capabilities

Access

API README

Seedance 2.0 Fast Reference to Video

Highlights

Pricing

Technical Specs

Related

Send your first request

Compare models