blog/models·Sep 13, 2026·6 min·by the eroq team

Image to video engines compared — which one animates your still

Every eroq video engine takes a start frame — how Motion One, Kling, Hailuo and Seedance 2.5 differ once it moves, and how to write a prompt for motion only.


Handing an engine a still is the most controllable way to make a video. The subject, the framing and the light are already decided — they are in the picture — and the engine has one job left, which is to move it. Every video engine on eroq accepts a start frame, so the question is never whether an engine can do image-to-video. It is what each one does after the first frame.

What a start frame actually buys you

In text-to-video the engine invents the subject, the composition, the light and the motion all at once, and a flaw anywhere ruins the take. In image-to-video three of those four are already locked — a face you approved, a product photographed the way the client signed off, a painting whose palette took four renders to get right.

The workflow follows from that. Draft the frame in the Image studio until it is right, then animate it. Every render is saved in your Library with its recipe, and Animate on an image card sends it into the video tool as a source. A Character works the same way — its reference photos carry the same face into the clip.

The roster, judged on what happens after frame one

Motion One is the uncensored engine, and on eroq that settles a whole category of jobs by itself. It is the only video engine that is not moderated upstream, so mature stills of adult, fictional characters animate here or nowhere. It is on every account, free included, at 100 credits for 5 seconds or 180 for 10, with a 720p ceiling. For a lot of people it is not one option among seven but the answer; the rest of this article covers the SFW half of the roster.

Kling 2.5 Turbo is the one to hand a face. Its reputation is fluid motion and faces, which in practice means a portrait animated on Kling tends to stay the same person from the first frame to the last rather than sliding into a cousin halfway through. 1080p, 5 or 10 seconds, 120 or 220 credits, Creator plan and up. If your still is a person and the clip is about the person, start here. There is a side-by-side with Seedance on /compare/seedance-vs-kling.

Hailuo 02 is the one to hand a scene with weather in it. Its reputation is cinematic physics and dramatic light — smoke, water, falling debris, hard shafts of light doing something over time. If what should move in your still is not a person but the air around them, Hailuo is the pick. 720p, 6 or 10 seconds, 100 credits at the 5-second anchor and 180 at 10, Hobby and up.

Seedance 2.5 is the one with the controls. It honors a reproducibility seed, so once a take works you can re-render variations from the same starting point instead of re-rolling the dice, and it supports first and last frame interpolation — give it the still you start on and the still you want to land on, and it fills the middle. 4 to 30 seconds, up to 1080p, Creator and up, 180 credits for 5 seconds.

Seedance 1.0 Pro and Lite are the drafting pair, 3 to 12 seconds, both seeded. Lite at 40 credits for 3 seconds is the cheapest way to learn whether a still animates well before you spend Kling money on it.

Veo 3 Fast animates a still and renders sound with it — ambience, effects, dialogue — at a fixed 8 seconds and 256 credits, Creator and up. It is the only engine on the roster that produces audio, which makes it the choice when the clip has to arrive finished rather than silent.

Write the prompt for motion only

This is the single biggest mistake in image-to-video, and it is easy to fix. When a still is already the subject, re-describing the subject does nothing useful and can actively fight the frame you gave it. The engine can see the red coat. Telling it about the red coat only gives it an opportunity to render a different one.

So strip the prompt down to the things that change over time: what moves, how the camera moves, what the light does.

Say your source still is a woman standing at a rain-streaked window at night, made in the Image studio and already exactly right. The prompt is not a description of her. It is this:

She breathes out slowly and the glass fogs at the edge of the frame, one hand lifting to wipe a short arc clear; rain keeps running down the outside of the pane and the neon behind it pulses across the water. Slow push-in, a few degrees of handheld drift, everything else holds still.

Every clause is a verb or a camera instruction. "Everything else holds still" is doing real work — it tells the engine that the rest of the frame is finished, which is the whole premise of animating a still.

Compare that to the usual first attempt — "A beautiful woman in a red coat at a rainy window at night, neon lights, cinematic, 35mm". That is a text-to-video prompt pasted into an image-to-video job. It describes what the picture already is, asks for no motion at all, and comes back looking like a photograph with a mild breeze in it.

A three-line checklist for a motion prompt:

  1. One action. She wipes the glass. The car door opens. The smoke lifts.
  2. One camera move. Push-in, orbit, slow pan, handheld drift. Named, not implied.
  3. One line about what the light or the environment does — or an explicit note that it holds.

The end-frame trick

If you know where the shot has to land — a logo resolving, a face turning to camera, a door fully open — Seedance 2.5 is the only engine that will take both ends. Render two stills in the Image studio, set the first as the start frame and the second as the end frame, and write a prompt that describes only the journey between them.

This is the closest thing on the roster to directing rather than prompting, and it is what makes a sequence cut together — scene two can start on the exact frame scene one ended on.

What image-to-video does not do

Worth saying plainly. There is no lip-sync on eroq — an animated still will not mouth a voice track, and pairing a clip with a rendered voice is a job for your editor. There is no face swap and no upscaling, and no trimming, grading or transitions inside the studio. A clip comes back at the resolution and length you asked for; everything after that happens in Premiere or After Effects.

The short version

  • Mature content → Motion One. There is no second option.
  • The still is a person and the clip is about the person → Kling 2.5 Turbo.
  • The still is a scene and the motion is physics, weather or light → Hailuo 02.
  • You know the last frame, or you need longer than 12 seconds, or you need a seed → Seedance 2.5.
  • It has to arrive with sound → Veo 3 Fast, 8 seconds.
  • You are not sure the still animates at all → Seedance 1.0 Lite, 3 seconds, 40 credits, then commit.

FAQ

Can every eroq video engine animate an image?

Yes. Every engine on the roster accepts a start frame, whether it comes from a reference photo, a render in your Library, or a Character's photos. What differs is length, resolution, plan access and what each engine is good at once the frame starts moving.

Which engine keeps a face consistent in image-to-video?

Kling 2.5 Turbo, which is known for fluid motion and faces. Using a Character rather than a loose photo helps further, since its reference photos carry the same face across both images and clips.

Which engine supports a start and an end frame?

Seedance 2.5. It is the only engine on the roster with first and last frame interpolation, so you can give it the frame to open on and the frame to land on and let it fill the middle.

Draft the frame, then write three lines of motion — open the video studio.

Tagsimage-to-videovideo-enginesklinghailuoseedance

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