Seedance 1.5 Pro : Génération Vidéo Cinématographique avec Audio Intégré et Synchronisation Labiale | RunComfy
bytedance/seedance-v1.5-pro/image-to-video
Seedance 1.5 Pro génère des vidéos cinématographiques multilingues à partir de texte ou d'images avec dialogues synchronisés, contrôle de caméra et narration audiovisuelle fluide pour la publicité, le doublage et les productions créatives de courts métrages.
Table of contents
1. Get started
Use RunComfy's API to run bytedance/seedance-v1.5-pro/image-to-video. For accepted inputs and outputs, see the model's schema.
curl --request POST \
--url https://model-api.runcomfy.net/v1/models/bytedance/seedance-v1.5-pro/image-to-video \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"prompt": "A gentle breeze blows softly, and the real girl's body remains stable. Her long hair, including the hair below, flutters naturally. The anime girl on the phone screen first closes her eyes for 2 seconds, then slowly opens them, with her mouth remaining still and silent. Her hair, including the hair below, also flutters naturally in the breeze in perfect synchronization. The rhythm and direction of the hair fluttering of the two girls are exactly the same. The subway train moves rapidly, emitting a low rumbling echo. ",
"first_frame_image_url": "https://playgrounds-storage-public.runcomfy.net/tools/7272/media-files/input-1-1.png"
}'2. Authentication
Set the YOUR_API_TOKEN environment variable with your API key (manage keys in your Profile) and include it on every request as a Bearer token via the Authorization header: Authorization: Bearer $YOUR_API_TOKEN.
3. API reference
Submit a request
Submit an asynchronous generation job and immediately receive a request_id plus URLs to check status, fetch results, and cancel.
curl --request POST \
--url https://model-api.runcomfy.net/v1/models/bytedance/seedance-v1.5-pro/image-to-video \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <token>" \
--data '{
"prompt": "A gentle breeze blows softly, and the real girl's body remains stable. Her long hair, including the hair below, flutters naturally. The anime girl on the phone screen first closes her eyes for 2 seconds, then slowly opens them, with her mouth remaining still and silent. Her hair, including the hair below, also flutters naturally in the breeze in perfect synchronization. The rhythm and direction of the hair fluttering of the two girls are exactly the same. The subway train moves rapidly, emitting a low rumbling echo. ",
"first_frame_image_url": "https://playgrounds-storage-public.runcomfy.net/tools/7272/media-files/input-1-1.png"
}'Monitor request status
Fetch the current state for a request_id ("in_queue", "in_progress", "completed", or "cancelled").
curl --request GET \
--url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
--header "Authorization: Bearer <token>"Retrieve request results
Retrieve the final outputs and metadata for the given request_id; if the job is not complete, the response returns the current state so you can continue polling.
curl --request GET \
--url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
--header "Authorization: Bearer <token>"Cancel a request
Cancel a queued job by request_id, in-progress jobs cannot be cancelled.
curl --request POST \
--url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
--header "Authorization: Bearer <token>"4. File inputs
Hosted file (URL)
Provide a publicly reachable HTTPS URL. Ensure the host allows server‑side fetches (no login/cookies required) and isn't rate‑limited or blocking bots. Recommended limits: images ≤ 50 MB (~4K), videos ≤ 100 MB (~2–5 min @ 720p). Prefer stable or pre‑signed URLs for private assets.
5. Schema
Input schema
{
"type": "object",
"title": "Input",
"required": [
"prompt",
"first_frame_image_url"
],
"properties": {
"prompt": {
"title": "Prompt",
"description": "Le prompt doit contenir moins de 500 caractères pour obtenir de meilleurs résultats.",
"type": "string",
"default": "A gentle breeze blows softly, and the real girl's body remains stable. Her long hair, including the hair below, flutters naturally. The anime girl on the phone screen first closes her eyes for 2 seconds, then slowly opens them, with her mouth remaining still and silent. Her hair, including the hair below, also flutters naturally in the breeze in perfect synchronization. The rhythm and direction of the hair fluttering of the two girls are exactly the same. The subway train moves rapidly, emitting a low rumbling echo. "
},
"first_frame_image_url": {
"title": "Image de départ",
"description": "",
"type": "string",
"validations": [
{
"validation_rule": "width_pixels<",
"validation_value": 6000,
"validation_error": "La largeur et la hauteur de l'image ne doivent pas dépasser 6000 pixels."
},
{
"validation_rule": "height_pixels<",
"validation_value": 6000,
"validation_error": "La largeur et la hauteur de l'image ne doivent pas dépasser 6000 pixels."
},
{
"validation_rule": "width_pixels>",
"validation_value": 300,
"validation_error": "La largeur et la hauteur de l'image ne doivent pas être inférieures à 300 pixels."
},
{
"validation_rule": "height_pixels>",
"validation_value": 300,
"validation_error": "La largeur et la hauteur de l'image ne doivent pas être inférieures à 300 pixels."
},
{
"validation_rule": "width/height>",
"validation_value": 0.4,
"validation_error": "Le rapport d'aspect doit être compris entre 0,4 et 2,5."
},
{
"validation_rule": "width/height<",
"validation_value": 2.5,
"validation_error": "Le rapport d'aspect doit être compris entre 0,4 et 2,5."
},
{
"validation_rule": "file_size_mb<",
"validation_value": 30,
"validation_error": "La taille du fichier doit être inférieure à 30 Mo."
}
],
"default": "https://playgrounds-storage-public.runcomfy.net/tools/7272/media-files/input-1-1.png"
},
"resolution": {
"title": "Résolution",
"description": "",
"type": "string",
"enum": [
"480p",
"720p",
"1080p"
],
"default": "480p"
},
"ratio": {
"title": "Rapport d'aspect (L:H)",
"description": "",
"type": "string",
"enum": [
"16:9",
"4:3",
"1:1",
"3:4",
"9:16",
"21:9",
"adaptive"
],
"default": "adaptive"
},
"duration": {
"title": "Durée",
"description": "",
"type": "integer",
"enum": [
4,
5,
6,
7,
8,
9,
10,
11,
12
],
"default": 5
},
"generate_audio": {
"title": "Générer l'audio",
"description": "",
"type": "boolean",
"default": true
},
"camera_fixed": {
"title": "Caméra fixe",
"description": "Définit si la caméra reste fixe dans la vidéo.",
"type": "boolean",
"default": true
}
}
}Output schema
{
"output": {
"type": "object",
"properties": {
"image": {
"type": "string",
"format": "uri",
"description": "single image URL"
},
"video": {
"type": "string",
"format": "uri",
"description": "single video URL"
},
"images": {
"type": "array",
"description": "multiple image URLs",
"items": { "type": "string", "format": "uri" }
},
"videos": {
"type": "array",
"description": "multiple video URLs",
"items": { "type": "string", "format": "uri" }
}
}
}
}Modèles vidéo
Modèles d'images
RunComfy
Droits d'auteur 2026 RunComfy. Tous droits réservés.RunComfy est la première ComfyUI plateforme, offrant des ComfyUI en ligne environnement et services, ainsi que des workflows ComfyUI proposant des visuels époustouflants. RunComfy propose également AI Models, permettant aux artistes d'utiliser les derniers outils d'IA pour créer des œuvres d'art incroyables.