ByteDance Seedance V1 Pro

Seedance v1 Pro I2V 1080p — bytedance/seedance-v1-pro-i2v-1080p

Seedance v1 Pro I2V 1080p generates high-quality 1080p videos from a single reference image plus a motion-focused prompt. Upload a starting image, describe the action and camera intent, and the model animates the scene while keeping the input image as the visual anchor. You can also provide an optional last_image to better control how the clip ends, and enable camera_fixed to keep the camera locked while motion happens within the frame.

Key capabilities

• Image-to-video generation anchored to a reference image (1080p output)
• Natural motion and smooth animation for character actions and scene beats
• Optional last_image support for improved ending continuity
• Optional camera_fixed mode for fixed framing (no camera movement)
• Seed control for reproducible iterations

Use cases

• High-resolution character animation from a single keyframe
• Cinematic scene beats with controlled blocking and fixed shots
• Start-to-end guided shots using last_image for more predictable endings
• Marketing and storytelling clips that need sharper detail at 1080p
• Generating multiple takes by changing seed while keeping the same prompt

Pricing

Inputs

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

Parameters

• prompt: describes subject action, scene 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 fix 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)

For better control, write prompts like a director’s beat sheet:

• Blocking: who moves where (walks from right to left, stops, gestures)
• Emotion: facial expression and body language cues (angry, disappointed, calm)
• Camera: fixed shot, slow push-in, pan, orbit (or keep camera_fixed on)
• Continuity: keep identity, outfits, and scene layout consistent with the input image

Example prompts

• Fixed shot. The man on the right walks toward the man on the left and confronts him, visibly dissatisfied. Strong body language, tense atmosphere, natural motion, realistic lighting, 5 seconds.
• A character turns, takes two steps forward, and points while speaking, cinematic lighting, subtle wind and particles, camera fixed, 5 seconds.
• Slow push-in on a hero’s face as their expression changes from calm to determined, shallow depth of field, cinematic mood, 5 seconds.