Bytedance Seedance 2.5 Image To Video

Bytedance Seedance 2.5 Image To Video

Playground

Seedance 2.5 (Image-to-Video) generates Hollywood-grade cinematic videos from reference images and text prompts with native audio-visual synchronization, director-level camera and lighting control, and exceptional motion stability. Built on Seed’s unified multimodal architecture, it preserves the input image’s subject and composition while adding expressive, physically accurate motion.

Features

Seedance 2.5 is Seed’s latest video generation model, built on a unified multimodal architecture. The Image-to-Video mode generates production-grade cinematic videos from reference images and text prompts — preserving the input image’s subject, composition, and style while adding expressive motion with native audio synchronization.

Key Features

• Unified multimodal architecture A single model that handles text, image, audio, and video inputs for comprehensive creative flexibility.

• Image-faithful generation Preserves the reference image’s subject identity, composition, lighting, and style while animating it into motion.

• 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 Granular control over camera movement, lighting, shadows, and character performance through prompts.

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

Parameters

How to Use

1. Upload a start image — provide an image to guide the video generation.
2. Write your prompt — describe the scene with cinematic detail: action, camera movement, lighting, mood.
3. Set duration — choose any duration from 4 to 30 seconds.
4. Run — submit and download your cinematic video with synchronized audio.

Pricing

Prices scale linearly with duration (4-30 seconds).

Billing Rules

• Base rate (480p): $0.90 per 5 seconds
• 720p: 2x the 480p price
• 1080p: 5x the 480p price (2.5x the 720p price)
• 4k: 10x the 480p price (2x the 1080p price).
• Duration range: 4-30 seconds (continuous)

Best Use Cases

• Product Demos — Animate product shots into cinematic showcase videos.
• Ad Creatives — Turn storyboard frames into polished commercial footage.
• Character Animation — Bring character art or portraits to life with natural motion.
• Scene Extension — Transform a single keyframe into a full cinematic sequence.
• Style-Consistent Series — Use reference images to maintain visual consistency across multiple clips.

Pro Tips

• Upload high-quality reference images for the best subject preservation.
• Write prompts like a film director — include lighting, camera angles, and mood.
• Use multiple reference images for better style and character consistency.
• Start with a short duration (4-5s) to iterate, then extend up to 15s for the final cut.
• Describe character expressions and actions for more engaging scenes.

Notes

• Native audio generation is included — videos come with synchronized sound.
• Up to 4 reference images can be uploaded.
• Duration range: 4-30 seconds (continuous).
• Aspect ratio follows the input image composition.

Related Models

• Seedance 2.5 Text-to-Video — Generate video from text prompts alone.
• Seedance 2.5 Video-Edit — Edit an existing video with a prompt.
• Seedance 2.5 Video-Extend — Extend an existing video with a new segment.
• Seedance 2.0 Image-to-Video — Previous generation Seedance model.

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",
  "resolution": "720p",
  "duration": 5,
  "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-2.5/image-to-video" \
  -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 "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL=$(printf '%s' "${TASK}" | jq -r '.urls.get // empty')
if [ -z "${RESULT_URL}" ]; then RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"; fi

# 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) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    created|processing) sleep 2 ;;
    *) printf 'Unexpected status: %s
' "${STATUS}" >&2; exit 1 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

Response Parameters

Result Request Parameters

Result Response Parameters