image-to-video

Image to Video

Convert still images to animated videos via inference.sh CLI.

Quick Start

Requires inference.sh CLI (infsh). Install instructions

infsh login

# Generate a still image
infsh app run falai/flux-dev-lora --input '{
  "prompt": "serene mountain lake at sunset, snow-capped peaks reflected in still water, golden hour light, landscape photography",
  "width": 1248,
  "height": 832
}'

# Animate it
infsh app run falai/wan-2-5-i2v --input '{
  "prompt": "gentle ripples on the lake surface, clouds slowly drifting, warm light shifting, birds flying in the distance",
  "image": "path/to/lake-image.png"
}'

Model Selection

Model App ID Best For Motion Style

Wan 2.5 i2v falai/wan-2-5-i2v Realistic motion, natural movement Photorealistic, subtle

WAN-I2V (Pruna) pruna/wan-i2v Economical, fast, 480p/720p Natural, efficient

Seedance 1.5 Pro bytedance/seedance-1-5-pro Stylized, creative, animation-like Artistic, expressive

Seedance 1.0 Pro bytedance/seedance-1-0-pro General purpose, good quality Balanced

Fabric 1.0 falai/fabric-1-0 Cloth, fabric, liquid, flowing materials Physics-based flow

Grok Imagine Video xai/grok-imagine-video General animation, text-guided Versatile

When to Use Each

Scenario Best Model Why

Landscape with water/clouds Wan 2.5 i2v Best at natural, realistic motion

Portrait with subtle expression Wan 2.5 i2v Maintains face fidelity

Product with fabric/cloth Fabric 1.0 Specialized in material physics

Flag waving, curtain flowing Fabric 1.0 Cloth simulation

Illustrated/artistic image Seedance Matches stylized content

General "bring to life" Seedance 1.5 Pro Good all-rounder

Quick test/iteration Seedance 1.0 Lite Fastest, 720p

Motion Types

Camera Movement

Movement Prompt Keyword Effect

Push in / Dolly forward "slow dolly forward", "camera pushes in" Increasing intimacy/focus

Pull out / Dolly back "camera pulls back", "slow zoom out" Reveal, context

Pan left/right "camera pans slowly to the right" Scanning, following

Tilt up/down "camera tilts upward" Revealing height

Orbit "camera orbits around the subject" 3D exploration

Crane up "camera rises upward" Grand reveal

Static (no camera movement prompt) Subject motion only

Subject Motion

Type Prompt Examples

Natural elements "water rippling", "clouds drifting", "leaves rustling in breeze"

Hair/clothing "hair blowing gently in wind", "dress fabric flowing"

Atmospheric "fog slowly rolling", "dust particles floating in light beams"

Character "person slowly turns to camera", "subtle breathing motion"

Mechanical "gears turning", "clock hands moving"

Liquid "coffee steam rising", "paint dripping", "water pouring"

Prompting Best Practices

The Golden Rule: Subtle > Dramatic

AI video models produce better results with gentle, subtle motion than dramatic action. Requesting too much movement causes distortion and artifacts.

❌ "person running and jumping over obstacles while the camera spins"
✅ "person slowly walking forward, gentle breeze, camera follows alongside"

❌ "explosion with debris flying everywhere"
✅ "candle flame flickering gently, warm ambient light shifting"

❌ "fast zoom into the eyes with dramatic camera shake"
✅ "slow dolly forward toward the subject, subtle focus shift"

Prompt Structure

[Camera movement] + [Subject motion] + [Atmospheric effects] + [Mood/pace]

Examples by Scenario

# Landscape animation
infsh app run falai/wan-2-5-i2v --input '{
  "prompt": "gentle camera pan right, water reflecting moving clouds, trees swaying slightly in breeze, warm golden light, peaceful and slow",
  "image": "landscape.png"
}'

# Portrait animation
infsh app run falai/wan-2-5-i2v --input '{
  "prompt": "subtle breathing motion, slight head turn, natural eye blink, hair moving gently, soft ambient lighting shifts",
  "image": "portrait.png"
}'

# Product shot animation
infsh app run bytedance/seedance-1-5-pro --input '{
  "prompt": "slow 360 degree orbit around the product, gentle spotlight movement, subtle reflections shifting, premium product showcase, smooth motion",
  "image": "product.png"
}'

# Fabric/cloth animation
infsh app run falai/fabric-1-0 --input '{
  "prompt": "fabric flowing and rippling in gentle wind, natural cloth physics, soft movement",
  "image": "fabric-scene.png"
}'

# Architectural visualization
infsh app run falai/wan-2-5-i2v --input '{
  "prompt": "slow dolly forward through the entrance, slight camera tilt upward, ambient light filtering through windows, dust particles in light beams",
  "image": "building-interior.png"
}'

Duration Guidelines

Duration Quality Use For

2-3 seconds Highest quality GIFs, looping backgrounds, cinemagraphs

4-5 seconds High quality Social media posts, product reveals

6-8 seconds Good quality Short clips, transitions

10+ seconds Quality degrades Avoid unless stitching shorter clips

Extending Duration

For longer videos, generate multiple short clips and stitch:

# Generate 3 clips from the same image with progressive motion
infsh app run falai/wan-2-5-i2v --input '{
  "prompt": "slow pan left, gentle water motion",
  "image": "scene.png"
}' --no-wait

infsh app run falai/wan-2-5-i2v --input '{
  "prompt": "continuing pan, clouds shifting, light changing",
  "image": "scene.png"
}' --no-wait

# Stitch together
infsh app run infsh/media-merger --input '{
  "media": ["clip1.mp4", "clip2.mp4"]
}'

The Full Workflow

Still-to-Final-Video Pipeline

# 1. Generate source image (best quality)
infsh app run bytedance/seedream-4-5 --input '{
  "prompt": "cinematic landscape, misty mountains at dawn, lake in foreground, dramatic clouds, golden hour, 4K quality, professional photography",
  "size": "2K"
}'

# 2. Animate the image
infsh app run falai/wan-2-5-i2v --input '{
  "prompt": "gentle mist rolling through the valley, lake surface rippling, clouds slowly moving, birds in distance, warm light shifting",
  "image": "landscape.png"
}'

# 3. Upscale video if needed
infsh app run falai/topaz-video-upscaler --input '{
  "video": "animated-landscape.mp4"
}'

# 4. Add ambient audio
infsh app run infsh/hunyuanvideo-foley --input '{
  "video": "animated-landscape.mp4",
  "prompt": "gentle nature ambience, distant birds, soft wind, water lapping"
}'

# 5. Merge video with audio
infsh app run infsh/video-audio-merger --input '{
  "video": "upscaled-landscape.mp4",
  "audio": "ambient-audio.mp3"
}'

Cinemagraph Effect

A cinemagraph is a still photo where only one element moves (e.g., waterfall moving in an otherwise frozen scene). To achieve this:

• Generate the still image with the motion element clearly defined

• Prompt for motion only in that specific element

• Keep to 2-4 seconds for seamless looping

infsh app run falai/wan-2-5-i2v --input '{
  "prompt": "only the waterfall is moving, everything else remains perfectly still, water cascading smoothly, rest of scene frozen",
  "image": "waterfall-scene.png"
}'

Common Mistakes

Mistake Problem Fix

Too much motion requested Distortion, artifacts, warping Subtle > dramatic, always

Wrong model for content type Poor results Use selection guide above

Clips too long (10s+) Quality degrades significantly Keep to 3-5 seconds, stitch if needed

No camera movement specified Random/unpredictable motion Always specify camera behavior

Conflicting motion directions Chaotic, unnatural One primary motion direction

Low-res source image Low-res video output Start with highest quality source

Complex action scenes Models can't handle Keep motion simple and natural

Related Skills

npx skills add inference-sh/skills@ai-video-generation
npx skills add inference-sh/skills@ai-image-generation
npx skills add inference-sh/skills@p-video
npx skills add inference-sh/skills@video-prompting-guide
npx skills add inference-sh/skills@prompt-engineering

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