ByteDance Seedance V1 Pro I2V 480p

Seedance v1 Pro I2V 480p — bytedance/seedance-v1-pro-i2v-480p

Seedance v1 Pro I2V 480p generates short videos from a single reference image plus a motion-focused prompt. Upload a starting image, describe the action and camera beats, and the model animates the scene while keeping the input image as the visual anchor. You can also provide an optional last_image to guide how the clip ends, and enable camera_fixed when you want motion without camera movement.

Key capabilities

• Image-to-video generation anchored to a reference image (480p output)
• Pro-quality motion and coherence for short narrative beats
• Optional last_image support for smoother ending continuity
• Optional camera_fixed mode for stable framing
• Seed control for reproducible variations

Use cases

• Quick story moments from a single keyframe (pets, portraits, small actions)
• Social-ready drafts and lightweight preview clips
• Start-to-end guided shots using last_image for more predictable endings
• Product/object animation with stable framing (camera_fixed)
• Iterating multiple takes quickly by changing seed

Pricing

Inputs

• image (required): starting reference image (first-frame anchor)
• prompt (optional/required by UI): motion and scene direction
• last_image (optional): end-frame reference to guide the finishing state

Parameters

• prompt: describes subject action, environment motion, and camera direction
• image: input image (upload or URL)
• last_image: optional end reference image (upload or URL)
• duration: video length in seconds
• aspect_ratio: output aspect ratio selection
• camera_fixed: whether to lock the camera position
• seed: random seed (-1 for random; fixed value for reproducible results)
• safety checker: enabled filtering for safer generations (if available in your UI)

Prompting guide (I2V)

Write prompts like a director’s beat sheet:

• Subject action: what changes over time (twitching paws, breathing, turning, walking)
• Camera: slow zoom, cut, wide shot, push-in (or keep fixed)
• Environment: light shifts, particles, subtle background motion
• Continuity: explicitly say what must remain consistent (subject identity, setting, colors)

Example prompts

• Slow zoom on a sleeping dog’s twitching paws as it dreams, then cut to a wider shot as the owner gently places a chew toy beside it. Warm morning light, soft bedding texture, natural motion, smooth camera transition.
• A cat curled on a sofa. Subtle breathing motion, tail flick, gentle sunlight through curtains, camera slow push-in, calm mood.
• A product on a table. Highlights glide across the surface, light dust motes, clean studio look, camera_fixed enabled.