What Image-to-Video Does
Image-to-video (I2V) takes a still image as the first frame and animates it into a clip — camera moves, subject motion, and (on the best models) synchronized audio. It's the most reliable way to get controlled video: you fix the composition with a great still, then the model only has to handle motion. This guide covers the best I2V models and how to use them. All are on LinkModel under one key.
The Best Image-to-Video Models
- Seedance 2.0 — Arena leader for video with audio; excellent motion from a reference frame plus native audio. Best all-round I2V and best value (~$9/normalized minute).
- Kling V3 — native 4K, strong character consistency; the pick when you need a high-resolution animated master.
- Wan 2.6 — role-play reference-to-video; animate a person's look/voice consistently. See the Wan 2.6 guide.
- Hailuo 2.3 — cheap, great for stylized/anime motion and e-commerce object spins.
The Pro Pipeline: Great Still → Animate It
The highest-quality workflow pairs a top image model with a top video model — generate a clean base frame, then animate it:
# 1) generate the first frame with an image model
curl -X POST https://api.linkmodel.ai/api/v1/image-generation \
-H "Authorization: Bearer $LINKMODEL_API_KEY" -H "Content-Type: application/json" \
-d '{ "model": "seedream-5.0-pro", "prompt": "A red vintage car on a coastal road at sunset, cinematic, 2K" }'
# 2) animate that image (image-to-video)
curl -X POST https://api.linkmodel.ai/api/v1/video-generation \
-H "Authorization: Bearer $LINKMODEL_API_KEY" -H "Content-Type: application/json" \
-d '{ "model": "seedance-2-0", "prompt": "Camera tracks alongside the car as it drives, engine and wind audio", "image_url": "https://your-cdn.com/frame.jpg" }'Submit, get a task_id and price, poll for the video. A clean, high-fidelity base frame (GPT Image 2, Seedream, or Nano Banana Pro) dramatically improves the animated result.
Tips for Better I2V
- Start clean. Blurry or busy source frames animate poorly — use tightly framed, high-res stills.
- Describe the motion, not the scene. The image already sets the scene; your prompt should specify camera and subject movement.
- Match aspect ratio between the still and the target video.
- Draft cheap, finish premium — iterate on Hailuo, render finals on Seedance/Kling.
Which to Use
| Need | Pick |
|---|---|
| Best all-round + audio | Seedance 2.0 |
| Native 4K master | Kling V3 |
| Person/character role-play | Wan 2.6 |
| Cheap / stylized / e-commerce | Hailuo 2.3 |
For text-only generation, see text to video API; for the full field, best AI video generation APIs.
Start free with a $1 credit and animate your first image.
