The practical payoff is episodic content: a short series, a product demo with a recurring presenter, or an explainer where a mascot appears in every scene.

Why Does Character Consistency Matter So Much?

Viewers forgive imperfect physics. They do not forgive a character whose face changes between cuts. Consistency is the line between “AI-generated” as a novelty and AI-generated as a usable production method.

How Do You Build a Consistent Character Set?

• Shoot or pick three to five reference images of the subject from similar angles
• Choose front and three-quarter views over profiles
• Keep lighting consistent across references
• Upload them together and label each by character name
• Test with a neutral scene before writing your script
• Lock the set — do not add images mid-project

Front and three-quarter views do the heavy lifting. They give the model the most information for the least ambiguity.

How Do You Write Scenes That Hold Together?

Reference the character by the name you assigned, and keep the action simple. A character walking through a doorway holds. A character running, turning, and gesturing in one shot usually does not.

Also keep scene duration modest. Longer generations give drift more time to accumulate, so build a sequence from several short clips instead of one long one.

What Are the Known Failure Modes?

Does It Support Image-to-Video and Text-to-Video Too?

Yes. The platform also offers standard text-to-video and image-to-video with camera moves like pan, zoom, and dolly, plus a lower-latency fast mode for drafting. Use fast mode to test a scene cheaply, then regenerate the keeper at full quality.

What Does It Cost?

A free tier covers a limited number of credits. Longer clips, higher resolution, and reference-heavy scenes all cost more, so a ten-shot sequence is a paid-tier project in practice.

Quick Summary

• Vidu keeps characters recognizable by reusing reference images, not prompts.
• Build three to five front and three-quarter reference shots per character.
• Lock the reference set before you start generating scenes.
• Keep scenes short and to two characters or fewer.
• Draft in fast mode; finalise at full quality to save credits.

Consistency is the reason studios give up on AI video. A character that changes face between shots makes a multi-scene story impossible. This feature targets that directly.

How Do You Use Reference-to-Video in Vidu?

• Open the Reference-to-Video mode in the workspace
• Upload up to seven images — one per character or prop
• Name each reference so prompts can call them by role
• Write a scene prompt referring to those names
• Generate and check that each subject stays recognizable
• Reuse the same reference set across every shot in the sequence

The reference set is your cast list. Keep it unchanged across scenes and the characters hold; swap an image mid-project and the continuity breaks.

What Makes a Good Reference Image?

Front-facing, sharp, evenly lit, and with the subject filling a good portion of the frame. A cropped, blurry, or side-lit reference gives the model too little to anchor on. If you only have one usable photo of a character, expect drift on profile angles.

Is Vidu Free?

There is a free tier with limited credits, and paid plans raise generation volume and resolution. Reference-to-Video and the fast lower-latency mode both consume credits, so a multi-shot sequence adds up quickly.

Other Generation Modes Worth Knowing

• Text-to-video: prompt to clip in several aspect ratios
• Image-to-video: animate a still with pan, zoom, or dolly
• Fast mode: lower latency for drafting and iteration
• Character consistency: the headline mode for episodic content

How Does It Compare to Kling?

If your project needs the same person across ten shots, Vidu is the more direct tool. If you need one long, physically convincing shot, a longer-clip model wins.

What Still Goes Wrong?

Extreme angles break consistency, and scenes with three or more referenced subjects get crowded. Sometimes the model applies the right face to the wrong body. Keep scenes to two characters where possible and verify each clip before building the next one.

Quick Summary

• Vidu Reference-to-Video keeps up to seven subjects consistent across clips.
• Keep the same reference set across the whole sequence.
• Use front-facing, well-lit, uncropped reference images.
• Fast mode is for drafting before you commit credits.
• Extreme angles and crowded scenes still break consistency.