We Buried the Lede: Fellowi Video Does 4K, 30 Seconds and Sound

This is a slightly embarrassing post to write. Every article we have published about Fellowi Video describes the same thing: a 4-second clip at 720p, made from a picture you upload. That was true when we launched. It has not been true for a while, and because nobody went back and rewrote the older posts, our own blog has been underselling the product to its own readers.

So here is the current list, with nothing rounded up.

Four models, not one

There are two families. The turbo pair is fast and cheap. The full pair is slower, sharper and considerably more expensive. Within each family there is an image-to-video model and a text-to-video one.

Text-to-video takes a sentence and invents the entire scene, including who is in it. Image-to-video takes a still you already have and moves it. For a specific character the image path is almost always the right answer, because the still has already settled the face and the video model only has to solve motion. If you do not care who is in frame, text-to-video saves you a step. The trade is covered properly in turning an 18+ still into a moving clip.

Resolution, and what it costs per second

You pay by the second, and the rate depends on the model and the resolution. Nothing is rounded up to a package.

• Turbo: 125 coins per second at 720p, 150 at 1080p.
• Full: 115 at 480p, 225 at 720p, 550 at 1080p, 1100 at 4K.

In practice: a 4-second turbo clip at 720p is 500 coins, which is what the smallest coin pack costs, about two euros. A 10-second turbo clip at 1080p is 1500. A 4-second shot at 4K on the full model is 4400, and it is worth being honest that 4K is a finishing move, not an exploration tool. Find the shot at 720p first. The economics of that are the same argument we made in what you actually pay per image.

Up to thirty seconds

The old four-second ceiling is gone. You choose any duration from 4 to 30 seconds. Longer is not automatically better: the model has more time to drift, and a thirty-second clip that goes strange at second eighteen is a more expensive mistake than a four-second one that does not. The sane workflow is to buy four seconds of an idea, decide whether it holds, and only then buy the long version.

Seven framings, including vertical

Aspect ratio can be left on auto, which keeps whatever framing your start image had. That default matters more than it sounds: a portrait still forced into 16:9 gets cropped or padded, and before this option existed that is exactly what happened. The explicit choices are 16:9, 9:16, 3:4, 4:3, 1:1 and 21:9.

9:16 is the one most people are actually looking for, and we wrote about that case separately in making vertical clips for Reels.

The end frame, which almost nobody knows about

This is the feature we have never once mentioned in public. As well as a start image you can give a clip an end image, and the model builds the motion that gets from one to the other.

It changes what the tool is for. Without it, you describe a movement and hope. With it, you are directing a transition between two pictures you have already approved. Generate two stills of the same character in different poses, hand over both, and you get a continuous shot instead of a guess. It pairs naturally with keeping a character consistent, because the two frames anchor both ends of the shot.

Sound

Clips can carry a generated soundtrack matched to the scene, at no extra cost, and you can turn it off. Off is the right choice more often than you would expect: if you are going to lay music or your own audio over the clip, a generated track is just something to strip out later.

What has not changed

Adult content between adults is allowed, with the same two permanent refusals: nothing sexual involving minors, and nothing depicting non-consent. A failed render is refunded in full and automatically, which is what makes experimenting at four seconds the rational way to work.

If your picture of Fellowi Video is a four-second 720p clip, it is out of date and that is our fault. Open the Video tab and look at the options. If you need a still to start from, make one first.