What is the Giant Cat AI Video: Your Cat as Big as a Subway Train?
Giant cats in real places are one of the oldest AI video jokes, and this autumn they took over the subway. The giant cat video shows a cat as big as a train car pulling into the station instead of the train, lying down at the platform edge while commuters film it, and then giving them a ride. Upload a photo of your cat or dog and this template makes your pet the giant.
The format grew with the new video models in late 2025: on 22 October 2025 @mamacathome posted a giant white cat crashing through a house on "CCTV", which has 3.3 million views and 159,000 shares. In October 2026 the subway version took off: @thegiantcatworld's "When the train is late because the train is a cat" passed 3.9 million views and 118,000 shares, and #giantcat now holds more than 400 million views. In November 2026 AI video apps started adding it as a template.
The template runs in two steps: an image model makes your pet train-sized at the subway platform, keeping its fur and face, then a video model plays 8 seconds of the giant pulling in, yawning while people film, and riding off with passengers on its back, with a deep purr and station sounds. The trend videos on this page are credited to their creators; the poster image is AI-generated.
What happens in the video
0-3 s: your pet, as big as a train car, slides out of the subway tunnel and stops at the platform. 3-5.5 s: it lies down, blinks and yawns while commuters film it. 5.5-8 s: people climb onto its back and it rides off into the tunnel.
Giant cat or giant dog?
Both. The template keeps the species, fur colour, markings and face from your photo, so a dog becomes a giant dog. An adult's photo works too and becomes a giant version of that person.
Which photo to use
Your own pet, sharp, eyes open, the whole body in view. One animal per photo. Use your own photo or one of an adult who said yes, never a stranger or a child.