Image-to-Video AI Models Compared: Cost, Resolution, and Control

If you already have the image a video should start from, the model choice comes down to what has to happen after that frame. This post compares the Veo 3.1, Seedance, Kling, and Grok Imagine Video lines on duration, resolution, first-frame and last-frame control, generated audio, reference inputs, and current per-second price, then shows how to submit an image-to-video job with the TypeScript SDK.