Runway Gen-4.5
Runway Gen-4.5 is an AI video generation model that creates short video clips from text prompts or static images with high visual fidelity and smooth motion. It supports both text-to-video and image-to-video generation with a range of aspect ratios and clip durations. Gen-4.5 emphasizes realistic motion, strong prompt adherence, and controllable composition, making it suitable for cinematic sequences and creative video workflows.
Bioluminescent Mangrove River Journey
{
"taskType": "videoInference",
"taskUUID": "fc8f53de-cc6f-4188-b718-c811a106fece",
"model": "runway:1@2",
"positivePrompt": "A slow cinematic glide down a narrow mangrove river at night, roots arching overhead like a natural cathedral, bioluminescent moss and tiny glowing insects illuminating the scene in teal, violet, and amber. A small weathered wooden boat drifts ahead with hanging lanterns, ripples spreading across black mirror-like water. Mist curls between the trees, distant luminous birds lift off from branches, and soft rain begins to fall, creating delicate concentric patterns on the surface. The camera moves smoothly forward with realistic parallax through dense foliage, rich atmospheric depth, highly detailed textures, natural water physics, moody magical realism, elegant color contrast, filmic lighting, ultra high visual fidelity.",
"width": 1280,
"height": 720,
"duration": 8,
"seed": 48281,
"providerSettings": {
"runway": {
"contentModeration": {
"publicFigureThreshold": "auto"
}
}
}
}{
"taskType": "videoInference",
"taskUUID": "fc8f53de-cc6f-4188-b718-c811a106fece",
"videoUUID": "6dba7728-9f04-40bf-bb0e-8c36b9aec934",
"videoURL": "https://vm.runware.ai/video/os/a17d13/ws/5/vi/6dba7728-9f04-40bf-bb0e-8c36b9aec934.mp4",
"seed": 48281,
"cost": 0.965
}Bioluminescent Mangrove Research Expedition
{
"taskType": "videoInference",
"taskUUID": "01ea41c5-2561-43cd-90d3-b7ce085a72fc",
"model": "runway:1@2",
"positivePrompt": "A cinematic night expedition drifting through a bioluminescent mangrove forest on a narrow wooden research skiff. Two field scientists in subtle waterproof gear glide between arching roots while electric-blue plankton ripple in the dark water with every movement of the boat. Firefly-like insects hover among glossy leaves, soft mist hangs low above the surface, and distant storm clouds flicker on the horizon. The camera begins close to the glowing wake beside the boat, then slowly tracks forward and slightly upward to reveal the dense maze of roots, reflective water, and luminous wildlife. Realistic water physics, gentle paddling motion, intricate foliage detail, believable cloth movement, moody natural lighting, high visual fidelity, atmospheric depth, serene wonder, cinematic documentary style.",
"width": 1280,
"height": 720,
"duration": 8,
"seed": 97986,
"providerSettings": {
"runway": {
"contentModeration": {
"publicFigureThreshold": "auto"
}
}
}
}{
"taskType": "videoInference",
"taskUUID": "01ea41c5-2561-43cd-90d3-b7ce085a72fc",
"videoUUID": "53a9d1d6-079d-40ae-a547-da2c29c3d744",
"videoURL": "https://vm.runware.ai/video/os/a15d18/ws/5/vi/53a9d1d6-079d-40ae-a547-da2c29c3d744.mp4",
"seed": 97986,
"cost": 0.965
}Bioluminescent Jungle Temple Dawn
{
"taskType": "videoInference",
"taskUUID": "17eef945-22c7-4160-b2ae-cddb468f0953",
"model": "runway:1@2",
"positivePrompt": "Animate this first-frame scene into a lush cinematic sequence: the camera slowly pushes forward toward the ancient jungle temple as morning mist curls across the ground, bioluminescent flowers pulse softly in blue and violet, dew glistens on leaves, hanging vines sway gently, tiny glowing insects drift through the air, reflections ripple subtly in the foreground pool, and warm dawn light strengthens through the canopy with realistic volumetric rays. Preserve the temple composition from the frame image, maintain high realism, smooth natural motion, rich texture detail, and an awe-filled mystical mood.",
"width": 1280,
"height": 720,
"duration": 8,
"seed": 1554,
"providerSettings": {
"runway": {
"contentModeration": {
"publicFigureThreshold": "auto"
}
}
},
"inputs": {
"frameImages": [
{
"image": "https://assets.runware.ai/assets/inputs/5c6cc9ed-a385-4fed-8e7b-e90fc31b080c.jpg",
"frame": "first"
}
]
}
}{
"taskType": "videoInference",
"taskUUID": "17eef945-22c7-4160-b2ae-cddb468f0953",
"videoUUID": "12705e23-36d1-49f1-bac3-a04c4dc6f06d",
"videoURL": "https://vm.runware.ai/video/os/a03d21/ws/5/vi/12705e23-36d1-49f1-bac3-a04c4dc6f06d.mp4",
"seed": 1554,
"cost": 0.965
}Bioluminescent Mangrove Research Voyage
{
"taskType": "videoInference",
"taskUUID": "f290d937-a356-4d27-b855-397a95324784",
"model": "runway:1@2",
"positivePrompt": "A small wooden research skiff glides slowly through a flooded mangrove forest at blue hour, roots arching like cathedral columns over dark water alive with turquoise bioluminescence. Two scientists in practical weathered field gear examine glowing samples in glass jars while soft mist drifts between the trees. The camera begins low at water level following ripples and reflections, then gently rises and orbits the boat as schools of tiny luminous fish scatter beneath the surface. Firefly-like spores float in the air, distant thunderheads pulse faintly on the horizon, and wet leaves shimmer with subtle rain. Cinematic realism, rich natural textures, moody color contrast, believable motion, elegant parallax, immersive atmosphere, high visual fidelity.",
"width": 1280,
"height": 720,
"duration": 8,
"seed": 82229,
"providerSettings": {
"runway": {
"contentModeration": {
"publicFigureThreshold": "auto"
}
}
}
}{
"taskType": "videoInference",
"taskUUID": "f290d937-a356-4d27-b855-397a95324784",
"videoUUID": "3bee3aad-6bc1-424c-92e4-7c791416bb7b",
"videoURL": "https://vm.runware.ai/video/os/a09d21/ws/5/vi/3bee3aad-6bc1-424c-92e4-7c791416bb7b.mp4",
"seed": 82229,
"cost": 0.965
}Bioluminescent Mangrove Night Passage
{
"taskType": "videoInference",
"taskUUID": "d822bbf0-d681-42f5-b659-df573b7681ef",
"model": "runway:1@2",
"positivePrompt": "Using the provided first-frame image as the opening composition, create a cinematic night journey through a flooded bioluminescent mangrove tunnel. The skiff glides slowly forward through dark reflective water while glowing blue root systems shimmer beneath the surface. Luminous insects swirl gently around the lantern, soft teal mist drifts between tangled branches, and subtle ripples trail behind the boat. Emphasize realistic motion, atmospheric depth, wet textures, delicate parallax through the mangrove roots, and a calm mysterious mood with high visual fidelity and smooth camera travel.",
"width": 1280,
"height": 720,
"duration": 8,
"seed": 4790,
"providerSettings": {
"runway": {
"contentModeration": {
"publicFigureThreshold": "auto"
}
}
},
"inputs": {
"frameImages": [
{
"image": "https://assets.runware.ai/assets/inputs/e3ec74bf-6597-4f82-80ca-457e2f089161.jpg",
"frame": "first"
}
]
}
}{
"taskType": "videoInference",
"taskUUID": "d822bbf0-d681-42f5-b659-df573b7681ef",
"videoUUID": "3d96a59f-68cc-437b-9992-9caa9c467463",
"videoURL": "https://vm.runware.ai/video/os/a23d05/ws/5/vi/3d96a59f-68cc-437b-9992-9caa9c467463.mp4",
"seed": 4790,
"cost": 0.965
}