Vidu Q4 AI Video Generator

Vidu Q4 online: Shengshu's new Preview model turns a photo or up to 8 reference images into a clip with sound, 5–16 seconds.

Sample videos

Vidu Q4 is Shengshu Technology's next flagship video model; the version available now is the Preview, released on October 7, 2026. It animates a start image, keeping the photo's shape, or builds a scene from up to 8 reference images with up to three MP3 voice or sound clips, and generates synced audio and lip movement. On Vidlark it runs at 540p, 720p, 1080p, 5–16 seconds, from 20 credits a second, and it is available on any plan or credit pack.

Updated October 12, 2026

At a glance

Made by: Shengshu
Price: From 20 credits per second
Quality: 540p, 720p, 1080p
Length: 5s, 8s, 10s, 16s
Input: A photo or reference images
Aspect ratio: 16:9, 9:16, 1:1, 4:3, 3:4
References: Up to 8 images
Audio references: Up to 3 MP3 clips
Sound: Yes, generated with the video
Per run: One video
Available on: Any plan or credit pack
Account: Free account required, 100 credits on sign-up, no card
Unlimited plan: 40% off

Vidlark is an independent platform and isn't affiliated with Shengshu.

How to use the Vidu Q4 AI video generator

1
Describe the shot
Type a prompt, or upload a photo to animate.
2
Pick the settings
540p / 720p / 1080p, 5–16s; the price shows before you start.
3
Generate and download
Download the video when it is ready.

What it does well

Faces that act

Shengshu tuned Q4 for expression, emotion and body movement, so a smile, a glance or a shrug reads clearly instead of drifting. It suits close-ups and short scenes built around a person.

One cast from many references

Upload up to 8 images of the people, the place and the style, then refer to them by order in the prompt ("the man in image 2"). They stay recognisable across the clip.

Voices with lip sync

Add up to three short MP3 voice clips and say who speaks; the lines come out in that voice with matching mouth movement. Without clips, sound is generated from the prompt, or switched off.

Settings and prices

Video is billed per second of output; the button always shows the exact total before you generate.

Setting	Price	Example	Unlimited plan
540p	20 credits / second	5-second clip = 100 credits	Uses credits
720p	40 credits / second	5-second clip = 200 credits	Uses credits
1080p	50 credits / second	5-second clip = 250 credits	Uses credits

Prompt tips for better videos

Number your references
The model reads references by order. Name them that way in the prompt: "the woman in image 1 hands the cup from image 3 to the man in image 2".
Draft at 540p
Settle the action at 20 credits a second, then render the keeper at 1080p for 50 a second.
Use MP3 for voices
Vidu Q4 takes reference audio as MP3 only, 3 to 12 seconds a clip. Trim a clean line of speech without music under it.

Example prompt

A cyclist rides through a rainy neon street at night, puddles splashing under the wheels. Slow tracking shot from the side, 35mm, reflections on the wet asphalt. Sound: rain, tires on water, distant traffic.

Use this prompt

What people make with it

Short drama scenes

A two-person exchange with a reaction shot, from character photos and a line of dialogue, in up to 16 seconds.

Product spots with a presenter

Combine the product shot, a presenter photo and the setting as references for a short ad where the same face and pack appear throughout.

Bringing a portrait to life

Start from one photo and add a small action and a line of speech; the clip keeps the photo’s framing and look.

How it compares

How it lines up against similar video models on this site; every one uses the same credit balance.

Model	Best for	Top quality	Length	Sound	From
Vidu Q4	Character scenes with voices from photos and references.	1080p	5–16s	Yes	20 credits/s
Kling 3.0	Realistic motion and camera moves, with sound when needed.	1080p	5–15s	Yes	35 credits/s
Seedance 2.0	Multi-shot clips with steady characters, up to 1080p.	1080p	5–15s	Yes	25 credits/s

Other models to try

All models

Wan 3.0Up to 30-second clips with up to 8 reference images.from 10 credits/s· Paid plans

Seedance 2.0 MiniUnlimitedThe cheapest Seedance, good for drafts and social clips.from 7 credits/s· Paid plans

Grok Imagine VideoUnlimitedFast image-to-video from xAI.from 60 credits

PixVerse V6UnlimitedText, image and reference to video, with optional sound.from 13 credits/s· Paid plans

MiniMax H3Sharp 768p and 2K video with sound, up to 15 seconds.from 20 credits/s· Paid plans

MiniMax H3 MaxFast H3 with sound: text or a photo to video at 480p or 768p.from 22 credits/s· Paid plans

Vidu Q4 questions

Is there a free website to try Vidu Q4?

Vidu's own site and app run it on their credits. On Vidlark it is available on any plan or credit pack, so the 100 sign-up credits do not cover it; the smallest run, 5 seconds at 540p, is 100 credits and nothing is charged if a run fails.

What is Vidu Q4?

The next flagship video model from Shengshu Technology, the company behind Vidu. What is out now is Vidu Q4 Preview, released on October 7, 2026 ahead of the full model: it turns a photo, or a set of reference images with optional voice clips, into a clip with sound, and it is tuned for faces, emotion and body movement.

Can Vidu Q4 make a video from text alone?

Not yet. The Preview takes a start image or reference images; prompt-only text to video is not part of this release. For a clip from words only, Kling 3.0 or Seedance 2.0 on this site take a prompt alone.

How much does Vidu Q4 cost?

It is billed per second: 20 credits at 540p, 40 at 720p and 50 at 1080p, with sound or without at the same price. A 10-second 720p clip is 400 credits; plans take a discount off that.

How long can the videos be?

5, 8, 10, 16 seconds, at 540p, 720p, 1080p. Each run makes one video; for longer stories, generate several shots and edit them together.

Credits, refunds, watermarks and commercial use work the same on every model. See the pricing FAQ

Make a Vidu Q4 video

Pick a plan or a credit pack and start. Failed runs are refunded.

Generate a video