Image-to-Video vs Text-to-Video: Which Should You Use?

Quick definitions

• Text-to-video (T2V): you write a prompt; the model generates motion and visuals from text alone.
• Image-to-video (I2V): you upload a still and describe how it should move; the model animates that frame.
• Motion transfer (on Vocalove via Genjutsu): you provide an image plus a motion reference video so the subject can follow that choreography—not the same as plain I2V.

Side-by-side comparison

Exact models, durations, and credit prices change with the product UI. Use this as a decision guide, then confirm details on the live tools.

• Control of look — I2V: high (starts from your still). T2V: medium (prompt must describe everything).
• Speed to a usable face or product — I2V usually wins if you already have a photo.
• Inventing a brand-new scene — T2V is the natural starting point.
• Following a dance or specific body motion — Motion transfer (image + reference video), not plain I2V alone.
• Credits and model names — always read the current Video Generator and Genjutsu pages; do not copy prices from blogs.

When to choose image-to-video

• You already have a portrait, product shot, or art still you want to keep recognizable.
• You need gentle camera motion, blinks, or ambient movement without reinventing the subject.
• You plan a talking photo later—start with a strong still, then use audio-driven talking photo for lip sync (a different tool than generic I2V).

Open AI Video Generator

When to choose text-to-video

• You do not have a source still yet.
• You want atmospheric B-roll, fantasy scenes, or abstract motion described in words.
• You are exploring ideas quickly and can accept variation between runs.

How motion transfer differs

Plain image-to-video asks the model to invent motion from a still and a text hint. Motion transfer on Vocalove’s Genjutsu entry expects an image plus a motion reference video so the subject can follow that performance.

Do not treat motion transfer as “I2V with a longer prompt.” If you need dance or choreography fidelity, use the Genjutsu / motion-transfer workflow and follow the on-page inputs. Availability, success rate, and billing are defined by the live UI—not by this article.

Open Genjutsu (motion transfer)

Suggested workflow on Vocalove

1. 步骤 1

   Pick the mode

   On the AI Video Generator, use the Text or Image tab that matches your input. For choreography from a reference clip, use Genjutsu instead.

2. 步骤 2

   Confirm model and credits

   Read the labels next to generate before you spend credits. Names and prices can change.

3. 步骤 3

   Preview short clips first

   Start with a short duration when the UI allows. Extend only after motion and subject look acceptable.

FAQ

Is talking photo the same as image-to-video?

No. Talking photo animates a portrait to match audio (lip sync). Generic I2V animates a still from a motion prompt without requiring your voice track. Use the talking photo product when speech sync matters.

Which mode costs less?

It depends on the selected model and duration. Always trust the credit display on the page you are using.

Can I2V copy a dance from a TikTok?

Plain I2V is not the same as motion transfer. For reference-video choreography, use the Genjutsu motion-transfer flow with an image and a motion clip.