Seedance 1.5 Pro
Seedance 1.5 Pro is a next-generation AI video model from BytePlus that generates cinematic videos with native synchronized audio directly from text or image inputs. It offers precise audio-visual timing, strong motion coherence, expressive camera control, and advanced narrative prompt handling for short video creation.
Bioluminescent Monsoon Market Alley
{
"taskType": "videoInference",
"taskUUID": "5d219290-7a7d-4859-ae06-0404ac3c6296",
"model": "bytedance:seedance@1.5-pro",
"positivePrompt": "A cinematic night scene in a narrow floating market alley during a warm monsoon rain, glowing bioluminescent lanterns hanging from woven canopies, puddles rippling with neon teal and amber reflections, steam rising from street food stalls, fabric banners fluttering, merchants in translucent rain capes, tiny luminous fish swimming through shallow runoff channels beside the walkway. The camera begins with a low forward glide at street level, passing baskets of strange fruit and sizzling copper pans, then gently tilts upward to reveal layered balconies draped in wet vines and hanging lights. A child releases a paper boat into the rainwater stream, a musician under an awning plucks a glass-string instrument, distant thunder rolls, rain patters on canvas, soft crowd chatter and market sounds remain synchronized with the visuals. Highly atmospheric, richly textured, realistic cinematic lighting, coherent motion, immersive sound design, subtle depth of field, premium film look.",
"width": 1920,
"height": 1080,
"duration": 8,
"seed": 94219,
"providerSettings": {
"bytedance": {
"audio": true,
"cameraFixed": false
}
}
}{
"taskType": "videoInference",
"taskUUID": "5d219290-7a7d-4859-ae06-0404ac3c6296",
"videoUUID": "b8f53896-90db-4260-9267-b1a3639bc5ab",
"videoURL": "https://vm.runware.ai/video/os/a09d21/ws/5/vi/b8f53896-90db-4260-9267-b1a3639bc5ab.mp4",
"seed": 94219,
"cost": 0.93798
}Bioluminescent Reef Time-Portal
{
"taskType": "videoInference",
"taskUUID": "0ad22720-f53a-440a-9dd8-61b04b800333",
"model": "bytedance:seedance@1.5-pro",
"positivePrompt": "A cinematic underwater sequence that begins at a tranquil bioluminescent reef and evolves into a surreal time-bending marine spectacle. Preserve the same explorer and reef layout from the first frame, then transition naturally toward the final frame as glowing currents spiral outward and awaken the environment. Schools of fish scatter and regroup, coral polyps pulse with light, strands of plankton shimmer like stars, and a circular portal slowly forms from flowing ribbons of luminescent jellyfish energy. The explorer drifts forward cautiously, fabric straps and air bubbles reacting to the water. Motion is smooth, elegant, and physically coherent, with a slow floating camera push-in and subtle parallax from foreground coral. Synchronized audio: muffled underwater ambience, whale-song echoes, soft crackling bioluminescent energy, swirling water movement, and a rising crystalline hum as the portal opens. Photorealistic cinematic style, rich teal, indigo, magenta, and amber tones, immersive atmosphere, high detail.",
"width": 1280,
"height": 720,
"duration": 8,
"seed": 18357,
"providerSettings": {
"bytedance": {
"audio": true,
"cameraFixed": false
}
},
"inputs": {
"frameImages": [
{
"image": "https://assets.runware.ai/assets/inputs/47b7d5c1-de7c-425c-a30a-882ce04d3c78.jpg",
"frame": "first"
},
{
"image": "https://assets.runware.ai/assets/inputs/d12fa78d-05f1-4fb5-9940-5a8809f7f75a.jpg",
"frame": "last"
}
]
}
}{
"taskType": "videoInference",
"taskUUID": "0ad22720-f53a-440a-9dd8-61b04b800333",
"videoUUID": "7f2f102d-81a0-4982-8552-e55b1fcb21bb",
"videoURL": "https://vm.runware.ai/video/os/a22d05/ws/5/vi/7f2f102d-81a0-4982-8552-e55b1fcb21bb.mp4",
"seed": 18357,
"cost": 0.41688
}Moonlit Clocktower Market Chase
{
"taskType": "videoInference",
"taskUUID": "91c1387d-e455-4b63-8420-4f8ae7db63dd",
"model": "bytedance:seedance@1.5-pro",
"positivePrompt": "A cinematic nighttime market built around an old clocktower in a misty harbor town, blue lanterns swaying overhead, rain-slick cobblestones reflecting light. A masked courier weaves through crowded stalls clutching a glowing brass parcel while distant footsteps close in behind. The camera starts with a wide establishing shot from above, then descends into the crowd, tracking low past hanging fish signs, steaming food carts, fluttering fabric awnings, and startled pigeons. A bell tolls from the clocktower, vendors shout, footsteps splash through puddles, coins rattle, fabric rustles, and the parcel emits a soft mechanical hum synchronized with its pulsing light. The pursuit crescendos as the courier vaults a fruit stand, slides beneath strings of lanterns, and reaches a narrow alley opening to the moonlit docks. Moody, richly textured, suspenseful, high-end cinematic lighting, coherent character motion, realistic ambient sound design, dramatic but grounded tone.",
"width": 864,
"height": 496,
"duration": 5,
"seed": 65545,
"providerSettings": {
"bytedance": {
"audio": true,
"draft": true,
"cameraFixed": false
}
}
}{
"taskType": "videoInference",
"taskUUID": "91c1387d-e455-4b63-8420-4f8ae7db63dd",
"videoUUID": "f3d4744f-6176-491e-a6fb-fdcdfdd3d64f",
"videoURL": "https://vm.runware.ai/video/os/a15d18/ws/5/vi/f3d4744f-6176-491e-a6fb-fdcdfdd3d64f.mp4",
"seed": 65545,
"cost": 0.07292,
"outputs": {
"draftId": "cgt-20260327025345-g766z"
}
}Moonlit Bioluminescent Marsh Ritual
{
"taskType": "videoInference",
"taskUUID": "c2827e42-e9e1-4df2-a3ec-014bc14b9a0e",
"model": "bytedance:seedance@1.5-pro",
"positivePrompt": "Using the provided first-frame image as the opening shot, create a cinematic night sequence in which the masked herbalist slowly wades through a glowing marsh while the reed lantern flickers warmly against cold moonlight. Fireflies swirl in layered depth, ripples spread through the luminous water, reeds bend gently in the breeze, and thin fog curls over the surface. The character pauses, looks toward distant stilt houses, then raises the lantern slightly as if listening to something unseen across the wetlands. Emphasize natural, graceful body motion, subtle cloth movement, reflective water physics, and strong continuity with the source image. Sound design: soft water splashes, frogs and insects, distant wooden creaks, wet reeds brushing together, low night wind, and a faint mystical hum timed to the lantern glow. Atmospheric, immersive, lyrical, high-end fantasy cinematography.",
"width": 1280,
"height": 720,
"duration": 8,
"seed": 88038,
"providerSettings": {
"bytedance": {
"audio": true,
"cameraFixed": false
}
},
"inputs": {
"frameImages": [
{
"image": "https://assets.runware.ai/assets/inputs/90ad4f55-3962-43f1-a969-5c8d713c965f.jpg",
"frame": "first"
}
]
}
}{
"taskType": "videoInference",
"taskUUID": "c2827e42-e9e1-4df2-a3ec-014bc14b9a0e",
"videoUUID": "e2707dd8-33b9-4b3a-9a86-2d0319786198",
"videoURL": "https://vm.runware.ai/video/os/a10d08/ws/5/vi/e2707dd8-33b9-4b3a-9a86-2d0319786198.mp4",
"seed": 88038,
"cost": 0.41688
}