SkyReels V4
SkyReels V4 is a unified multimodal video foundation model for joint video-audio generation, inpainting, and editing. It accepts text, images, video clips, masks, and audio references, and supports cinematic outputs up to 1080p, 32 FPS, and 15 seconds with synchronized audio, making it suitable for prompt-driven generation as well as guided editing workflows.
API Reference
INTEGRATE
Complete technical specification for integration
Request Response
Examples 5
CODE
Ready-to-use code snippets for common workflows
Orbital Greenhouse Tea Ceremony
{
"taskType": "videoInference",
"taskUUID": "28979ec0-8c6f-48e5-9657-9c1177f1ac0e",
"model": "skywork:skyreels@v4",
"positivePrompt": "In an orbital greenhouse, a serene host performs a zero-gravity tea ceremony between rows of flowering herbs and suspended bonsai. Start from the first guided frame and evolve into a smooth, elegant camera drift with delicate hand motions, floating porcelain cups, spinning droplets, soft fabric movement, and shafts of sunlight crossing the glass habitat. Preserve continuity of character, costume, and environment, then resolve naturally toward the final guided frame with Earth visible beyond the window. Rich cinematic detail, believable physics, refined textures, tranquil atmosphere, subtle ambient station hum, gentle ceramic clinks, and airy room tone.",
"resolution": "1080p",
"duration": 8,
"settings": {
"audio": true,
"promptExtend": true
},
"inputs": {
"frameImages": [
{
"image": "https://assets.runware.ai/assets/inputs/97bfe814-b970-40de-819a-b17b22699bf8.jpg"
},
{
"image": "https://assets.runware.ai/assets/inputs/e4e53ac7-b5a3-4e34-9b4c-43cbcf6efb54.jpg",
"frame": "last"
}
]
}
}{
"taskType": "videoInference",
"taskUUID": "28979ec0-8c6f-48e5-9657-9c1177f1ac0e",
"videoUUID": "6154c8ab-a82b-4010-a916-7f40653209eb",
"videoURL": "https://vm.runware.ai/video/os/a03d21/ws/5/vi/6154c8ab-a82b-4010-a916-7f40653209eb.mp4",
"seed": 1925401861,
"cost": 2.8109
}Windblown Cliffside Violin Solo
{
"taskType": "videoInference",
"taskUUID": "5b33f8f2-d6b0-42ef-a8a7-e3fb4aa8d617",
"model": "skywork:skyreels@v4",
"positivePrompt": "A solitary violinist in layered indigo and copper garments stands on a narrow grassy cliff above a vast northern sea at late golden hour. The camera begins close on the bow crossing the strings, capturing fine hand motion, then slowly arcs outward to reveal jagged black rock stacks, circling white seabirds, crashing waves, and ribbons of wind pulling at loose fabric and hair. The performer is poised on a weathered stone slab etched with faded geometric patterns, with tiny wildflowers bending in gusts around their boots. Mood is majestic, wistful, and intimate. Rich cinematic lighting, realistic anatomy, natural skin texture, subtle breath in cool air, believable cloth simulation, detailed ocean spray, smooth camera movement, strong sense of scale, immersive atmosphere, high fidelity facial expression, filmic depth, synchronized soundscape of violin music, wind, distant surf, and birds.",
"width": 1280,
"height": 720,
"duration": 10,
"settings": {
"audio": true,
"promptExtend": true
}
}{
"taskType": "videoInference",
"taskUUID": "5b33f8f2-d6b0-42ef-a8a7-e3fb4aa8d617",
"videoUUID": "7c48b3d1-4943-48c6-9385-464c08c812db",
"videoURL": "https://vm.runware.ai/video/os/a09dlim3/ws/5/vi/7c48b3d1-4943-48c6-9385-464c08c812db.mp4",
"seed": 785451504,
"cost": 1.4044
}Flooded Observatory Reading Hall
{
"taskType": "videoInference",
"taskUUID": "f1dedd2b-0954-46ba-a906-0781c3561040",
"model": "skywork:skyreels@v4",
"positivePrompt": "Using @scene as the visual foundation, create a slow cinematic glide through a flooded observatory reading hall. Water ripples gently across the patterned floor, loose pages drift in the air, reflections shimmer across curved shelves, and tiny dust motes pass through beams of pale light from the cracked dome above. Emphasize atmospheric realism, elegant camera motion, layered depth, quiet wonder, and subtle environmental sound: creaking wood, soft water movement, distant gull echoes through the open dome, and fluttering paper.",
"resolution": "1080p",
"duration": 8,
"settings": {
"audio": true,
"promptExtend": true
},
"inputs": {
"referenceImages": [
{
"tag": "@scene",
"type": "image",
"images": [
"https://assets.runware.ai/assets/inputs/f9811d6b-6bcd-4cac-8b27-d6de4494768f.jpg"
]
}
]
}
}{
"taskType": "videoInference",
"taskUUID": "f1dedd2b-0954-46ba-a906-0781c3561040",
"videoUUID": "43f3acc3-b52b-44af-8e00-9b1461689bfb",
"videoURL": "https://vm.runware.ai/video/os/a05d22/ws/5/vi/43f3acc3-b52b-44af-8e00-9b1461689bfb.mp4",
"seed": 1840634605,
"cost": 2.806
}Midnight Museum Fossil Awakening
{
"taskType": "videoInference",
"taskUUID": "2fcc6811-d930-4165-a09e-1166f26db1a4",
"model": "skywork:skyreels@v4",
"positivePrompt": "Create a cinematic nighttime sequence inside a vast natural history museum. Begin with the atmosphere and composition of @image1: a quiet grand gallery with polished floors, towering fossil exhibits, and dim amber lighting. Transition into the closer, more suspenseful framing and skeletal detail of @image2, emphasizing the rib cage, skull, drifting dust, and tightening tension. Evolve the scene using @image3 as a pivotal transformation moment, where the fossil structure seems to awaken, display cases fracture, particles rise, and the skeleton lifts with uncanny presence. Resolve in the scale and intensity of @image4, with the fully awakened dinosaur skeleton dominating the hall amid debris, sparks, and dramatic contrast. Smooth camera movement, rich environmental detail, realistic lighting, museum ambience, escalating wonder and dread, cohesive progression across all four image references, high-end feature-film look.",
"resolution": "1080p",
"duration": 10,
"settings": {
"audio": true,
"promptExtend": true
},
"inputs": {
"frameImages": [
{
"image": "https://assets.runware.ai/assets/inputs/4222de22-30ce-4c0f-a6fe-b332ba21e246.jpg",
"frame": "first"
},
{
"image": "https://assets.runware.ai/assets/inputs/3bc81289-826e-43f3-926d-c79a1a40eff8.jpg",
"frame": 80
},
{
"image": "https://assets.runware.ai/assets/inputs/ddaa65d6-3a08-479d-85c7-543870576d8f.jpg",
"frame": 180
},
{
"image": "https://assets.runware.ai/assets/inputs/c8489afd-6e0d-42d6-8c1f-0025cb04b6df.jpg",
"frame": "last"
}
]
}
}{
"taskType": "videoInference",
"taskUUID": "2fcc6811-d930-4165-a09e-1166f26db1a4",
"videoUUID": "43aaae65-645a-42b8-bdfd-c99a5bd69186",
"videoURL": "https://vm.runware.ai/video/os/a03d21/ws/5/vi/43aaae65-645a-42b8-bdfd-c99a5bd69186.mp4",
"seed": 1813382151,
"cost": 3.5109
}Windblown Cliffside Violinist Finale
{
"taskType": "videoInference",
"taskUUID": "4c0b926a-42df-4a93-9963-b615e9a68a24",
"model": "skywork:skyreels@v4",
"positivePrompt": "Using the provided frame image as the visual anchor, create a sweeping cinematic sequence of a solitary violinist performing on a rugged seaside cliff. The camera begins close on the musician's hands and bow, then slowly arcs outward to reveal the vast turbulent ocean below. Strong coastal wind drives the coat tails and hair sideways, grasses bend in waves, seabirds wheel through the distance, and white spray rises from rocks beneath the cliff. The performance feels emotionally triumphant after a storm, with realistic body motion, natural cloth simulation, layered depth, detailed cloud movement, and rich atmospheric perspective. Preserve the subject identity and costume from @frame while adding elegant motion, dramatic scale, and polished filmic realism.",
"resolution": "1080p",
"duration": 8,
"settings": {
"audio": true,
"promptExtend": true
},
"inputs": {
"frameImages": [
"https://assets.runware.ai/assets/inputs/4a39ff3b-a5cc-4218-8525-b25863ed5d1c.jpg"
]
}
}{
"taskType": "videoInference",
"taskUUID": "4c0b926a-42df-4a93-9963-b615e9a68a24",
"videoUUID": "66604960-e9e1-447b-9af0-6d37e5ac29bf",
"videoURL": "https://vm.runware.ai/video/os/a10dlim3/ws/5/vi/66604960-e9e1-447b-9af0-6d37e5ac29bf.mp4",
"seed": 1162603015,
"cost": 2.8109
}