This is an AI video generation comparison for keyframes-video 
prompt:
In an animated suburban scene, a young girl walks along the sidewalk, passing different trees and houses, glances at the viewer briefly before continuing her walk.
Tested: April 27, 2025
Pika 2.2 with 2 frames supplied
Tested: April 27, 2025
Vidu Q1 sure has supercharged this girl's pace! Keyframes video.
Tested: April 27, 2025
Kling 1.6 with keyframes
Tested: April 27, 2025
Pixverse V4 in 'Transition' mode (keyframes). Standard motion settings.
Tested: April 28, 2025
Runway Gen 3 with end frame, done through Pollo.ai
Tested: April 28, 2025
Even with start-end frames FramePack appears resistant to making more than 3 steps. Whether it's walking away from the camera or across the scene from left to right. Tried various prompts and images with trees in the start/end of the image.
Two frames show the same girl with similar but different backgrounds: yellow or purple tree and a row of houses. The supplied prompt explains that this is a single street the girl is walking on.
Check out the results from Pika (Pika 2.2) vs Vidu AI vs Kling AI (Kling 1.6 Pro) vs PixVerse (PixVerse V4) vs Runway (Runway Gen 3) vs FramePack (FramePack) for similar or identical prompts side-by-side.
