Bytedance Seedance 2.0 Image To Video Turbo API Documentation

Bytedance Seedance 2.0 Image To Video Turbo API Documentation

Playground

Seedance 2.0 (Image-to-Video Turbo) generates cinematic 720p/1080p videos from reference images —a faster, more affordable high-resolution tier with native audio-visual synchronization, director-level control, and exceptional motion stability.

Features

Seedance 2.0 Image-to-Video Turbo delivers high-resolution 720p and 1080p cinematic videos from reference images with turbo generation — a faster, more affordable way to get high-resolution output while preserving the input image’s subject and composition.

Key Features

• Turbo output Generates 720p or 1080p with turbo-accelerated delivery.

• Image-faithful generation Preserves the reference image’s subject identity, composition, lighting, and style.

• Multi-image reference support Guide generation with up to 4 reference images for consistent style, characters, or scenes.

• 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.

• Exceptional motion stability Industry-leading motion coherence with stable subjects and fluid transitions.

Parameters

Writing Effective Prompts

The input image sets the first frame — your prompt directs what happens from there. The clearer the motion and camera direction, the better the result.

1. Start from the frame

Describe the action that begins from your image: what the subject does, where it goes, how the camera moves. Don’t re-describe what’s already visible in the image — build on it.

The woman in the photo turns from the window and walks toward the camera; slow push-in, warm interior light.

2. Shot-by-shot timeline

For longer clips, break the motion into timed segments (1-second granularity), continuous, no gaps.

> 0-2s: She turns from the window, a faint smile forming. Camera holds. > 2-5s: She walks toward the lens and stops mid-frame; slow push-in, shallow focus. > 5-8s: She glances off-screen as light shifts from warm to cool. Handheld drift.

3. Consistency notes

Lock the look for the whole clip: camera style, lighting, palette, atmosphere, audio.

Camera language

Write these directly; the model understands them:

• Shot size — extreme wide, wide, medium, medium close-up, close-up
• Movement — push in, pull out, pan, track, follow, orbit, tilt up, handheld shake
• Angle — low angle, overhead, eye-level, first-person
• Techniques — one-shot / long take, dolly zoom, bullet time, speed ramp

For a niche term, add a plain-language gloss: “rack focus: the sharp foreground softens as the background comes into focus.”

Referencing uploaded assets

When you attach images, videos, or audio, bind each one explicitly in the prompt by its upload order — @image1, @video1, @audio1 — and say what it’s for. Don’t rely on labels drawn inside the image itself.

• “The knight in @image1 walks through the castle in @image2.”
• “Refer to @video1 for the camera movement only; keep its shot order.”
• “@image1 and @image2 are Character 1, voiced by @audio1.”

When a reference is already accurate, just point to it — no need to re-describe it in detail.

Negative control

Positive descriptions work best, but you can suppress subtitles and audio:

• “No subtitles.”
• “No BGM — ambient and action sounds only.”
• “No audio.”

Weak vs. strong

Pricing

Billing Rules

• 720p rate: $0.70 per 5 seconds
• 1080p rate: $0.75 per 5 seconds
• Duration range: 4-15 seconds (continuous)

Best Use Cases

• Turbo HD Content — Get 720p/1080p output faster and at a lower price.
• Product Demos — Animate product shots into HD showcase videos quickly.
• Ad Creatives — Fast turnaround on high-resolution commercial footage.
• Character Animation — Bring character art to life in HD with natural motion.

Pro Tips

• Use this endpoint when you need HD resolution with turbo-speed generation.
• Upload high-quality reference images for the best subject preservation.
• Write prompts like a film director — include lighting, camera angles, and mood.
• Start with a short duration (4-5s) to iterate, then extend up to 15s for the final cut.

Notes

• Native audio generation included.
• Resolution options: 720p and 1080p only (turbo mode).
• Duration range: 4-15 seconds (continuous).
• Aspect ratio follows the input image composition.

Related Models

• Seedance 2.0 Image-to-Video — Highest quality generation.
• Seedance 2.0 Text-to-Video Turbo — Turbo text-to-video generation.
• Seedance 2.0 Fast Image-to-Video Turbo — Fastest option with speed-optimized turbo inference.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

set -euo pipefail

export WAVESPEED_API_KEY="your-api-key"

REQUEST_BODY=$(cat <<'JSON'
{
  "prompt": "A cinematic ocean wave at sunrise, highly detailed",
  "image": "https://interactive-examples.mdn.mozilla.net/media/cc0-images/painted-hand-298-332.jpg",
  "aspect_ratio": "16:9",
  "resolution": "720p",
  "duration": 5,
  "enable_web_search": false,
  "generate_audio": true
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/bytedance/seedance-2.0/image-to-video-turbo" \
  -H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
  -H "Content-Type: application/json" \
  -d "${REQUEST_BODY}")

TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"

# 2. Poll until the prediction finishes.
while true; do
  RESPONSE=$(curl --silent --show-error --fail-with-body \
    "${RESULT_URL}" \
    -H "Authorization: Bearer ${WAVESPEED_API_KEY}")
  RESULT=$(printf '%s' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  case "${STATUS}" in
    completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
    failed|cancelled|timeout|deleted) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    *) sleep 2 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

Response Parameters

Result Request Parameters

Result Response Parameters