This is an AI video generation comparison for keyframes-video 
prompt:
A red-haired girl's face subtly morphs with age while subtle breeze billows her hair. Freckles fade and shift, cheekbones and eyes mature, evoking a sense of time unfolding across one expression.
Tested: June 18, 2025
Tested: June 18, 2025
Tested: June 19, 2025
Wan introduces turning around in both my tests.
Tested: June 19, 2025
There's a sudden change in her looks
Tested: June 19, 2025
The morphing takes place straight away within less than 2 seconds and for the rest of the 5 second video was just a static shot of the end frame, so I cut it out.
Tested: June 24, 2025
The transition is so smooth and subtle that it's barely noticeable, her older version sneaks up on her!
Does her face transition gradually from younger to older?
Does her hair visibly move in response to a gentle breeze?
For this test, the age difference selested isn't that drastic, but that's because if you want smoother transitions, when you're making a long video form toddler to elder, you want to make transitions subtle and not too abrupt.
Check out the results from Pika (Pika 2.2) vs PixVerse (Pixverse V4.5) vs Wan (Online Platform) (Wan 2.1) vs Kling AI (Kling 1.6 Pro) vs FramePack (FramePack) vs Vidu AI (Vidu Q1) for similar or identical prompts side-by-side.
