Bytedance Seedance V1 Lite T2V 480p

Bytedance Seedance V1 Lite T2V 480p

Playground

Seedance V1 Lite is a 480p Text-to-Video model for coherent multi-shot videos with smooth, stable motion and precise prompt following. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Seedance v1 Lite T2V 480p generates short videos directly from a text prompt at a lightweight 480p output, optimized for fast iteration and low-cost experimentation. Describe the subject, action, scene, and camera intent, and the model produces a coherent clip suitable for quick story beats, concept drafts, and social prototypes. Enable camera_fixed when you want motion in-scene without camera movement.

Key capabilities

• Text-to-video generation (480p) optimized for speed and affordability
• Good motion when prompts include clear actions and camera direction
• Optional camera_fixed mode for stable framing
• Supports common aspect ratios (e.g., 16:9)

Use cases

• Rapid pre-visualization and storyboarding drafts
• Quick concept testing before upgrading to higher resolution runs
• Social prototypes and lightweight animated clips
• Generating multiple variations via seed for ideation

Pricing

Parameters

• prompt (required): Describe what happens in the video (subject, action, scene, mood)
• aspect_ratio: Output aspect ratio (e.g., 16:9, 9:16, 1:1)
• duration (required): Video length in seconds
• camera_fixed: Whether to fix the camera position
• seed: Random seed (-1 for random; fixed value for reproducible results)

Prompting guide (T2V)

Write prompts like a director’s brief:

• Subject: who/what is on screen
• Action: what changes over time (fluttering, turning, walking, reacting)
• Scene: where it happens + time of day
• Lighting: sunrise, neon, soft volumetrics, etc.
• Camera: only describe movement if camera_fixed is off

Example prompts

• A knight stands on a cliff overlooking a medieval city as sunrise breaks, banners flutter in the wind, camera slowly dolly-in, golden fog fills the valley, epic fantasy tone, soft sunrise lighting.
• A cozy café interior at night, rain on windows, warm tungsten lighting, subtle camera drift, calm mood, gentle motion.
• A sci-fi hallway with blinking lights and drifting mist, a character slowly turns toward the camera, dramatic rim light, cinematic tension.

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",
  "duration": 5,
  "aspect_ratio": "16:9",
  "camera_fixed": false,
  "seed": -1
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/bytedance/seedance-v1-lite-t2v-480p" \
  -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