Vidu Q4 AI Video Generator
Bring emotion into your character scenes. Vidu Q4 from Shengshu Technology combines expressive acting, directed camera work, and rich visual effects to turn your images into scenes with sound. Try Vidu Q4 on Picir AI today.
Tell More of Your Story With Vidu Q4
Let Viewers Feel the Moment
Give a character an emotion to express through their face, gestures, and voice. A quiet reaction can carry your story as much as a spoken line.
Guide Attention Through Each Scene
Describe where the camera should move and what it should reveal. Shape the pacing of a short scene around the moments you want viewers to notice.
Build on the Characters You Already Imagined
Bring your own images and optional voice samples into Vidu Q4. References help carry a familiar face, outfit, setting, or voice into your next clip.
What You Can Create With Vidu Q4
- •Emotion Through Performance: Direct a character's mood through expression, posture, and speech. Use small reactions to make a conversation or portrait feel more personal.
- •Camera Moves and Cuts: Write camera instructions into your prompt to shape framing and movement. Plan a reveal, follow a subject, or connect different views within a short clip.
- •Atmosphere and Visual Effects: Explore scenes with smoke, fire, particles, or fantasy effects. Describe where an effect begins and how it changes the surrounding scene.
- •Image and Voice References: Animate one starting image, or combine up to 15 reference images with up to 3 optional audio samples. Guide appearance and vocal identity together.
- •Synchronized Sound: Enable Generate Audio for speech and sound alongside your video. Describe dialogue and audible events in the same prompt as the visible action.
- •Resolution Up to 4K: Choose 540p, 720p, 1080p, 2K, or 4K for clips lasting 3–16 seconds on Picir AI. Match your output settings to the way you plan to use the video.
Vidu Q4 Makes Character Reactions Part of the Story
A smile, a pause, or a change in posture can tell viewers how a character feels. Vidu Q4 puts more emphasis on the relationship between facial expression, physical movement, and vocal delivery. Describe the emotional change you want as well as the action. This example shows an intimate character moment, where expression carries the scene.
Give Vidu Q4 a Camera Plan
Choose what the audience sees first, then describe where the camera should go. Vidu Q4 can follow instructions for camera motion and changes of shot within a short sequence. A close view can emphasize a reaction, while a wider view introduces the setting. Keep your directions in a clear order so each movement has a purpose.
Make the Scene Change Around Your Characters
Vidu Q4 can add effects that transform the atmosphere of a scene. Describe a source of light, a cloud of smoke, or a burst of particles, then explain how the character responds. Specific timing gives the model a clearer sequence to follow. The demonstration uses a glowing pink portal to turn an ordinary interior into a fantasy setting.
Keep a Voice in Mind as You Create With Vidu Q4
A character's voice helps make them recognizable across scenes. In Reference to Video mode, Vidu Q4 accepts up to three audio samples alongside your images to guide vocal identity. Add the intended words and emotion to your prompt, and keep Generate Audio enabled. Clear recordings give the model a more useful reference than clips with background music or overlapping speakers.
How to Use Vidu Q4 on Picir AI
Start with your images, give the scene direction, and review the result.
Choose Your Mode and Add Images
Select Image to Video for one starting image, or Reference to Video for 1–15 images. The reference mode also accepts up to three optional MP3 voice samples, each 3–12 seconds long.
Describe the Scene and Set the Output
Write the action, emotion, camera movement, and any dialogue or effects. Choose a 3–16 second duration, a resolution, and whether to generate audio; reference mode also lets you choose the aspect ratio.
Generate, Review, and Download
Check the displayed credit cost before generating with Vidu Q4. Review the motion and sound, then download your result or refine the prompt for another version.
Choose the plan that's right for you
Get all features of Picir.ai, complete tasks quickly and achieve professional results with our advanced AI technology.
Basic
- 600 credits/month
- All features available
- Unlimited downloads per day
- Assets owned by customer
- Faster generation speed
- Priority support
Pro
- 1600 credits/month
- All features available
- Unlimited downloads per day
- Assets owned by customer
- Faster generation speed
- Priority support
Max
- 4000 credits/month
- All features available
- Unlimited downloads per day
- Assets owned by customer
- Faster generation speed
- Priority support
Prime
- 8000 credits/month
- Team management
- Up to 5 team members
- All features available
- Unlimited downloads per day
- Assets owned by customer
- Faster generation speed
- Priority support
Vidu Q4 Specifications
Available settings in the Vidu Q4 generator on Picir AI.
| Developer | Shengshu Technology |
| Generation modes | Image to Video; Reference to Video |
| Duration | 3–16 seconds in both modes, in 1-second steps |
| Output resolution | 540p, 720p, 1080p, 2K, 4K |
| Aspect ratio | Image mode follows the input image; reference mode offers 16:9, 9:16, 1:1, 4:3, 3:4 |
| Image inputs | 1 image in Image to Video; 1–15 images in Reference to Video |
| Voice references | Up to 3 optional MP3 files in reference mode; 3–12 seconds each |
| Upload size | Up to 50 MB per file |
| Generated audio | On by default; can be switched off |
Last updated: October 14, 2026
Your Questions About Vidu Q4
Learn about the model, its controls, and creating videos on Picir AI.
What is Vidu Q4, and what changed from earlier versions?
Vidu Q4 is a video generation model from Shengshu Technology, released as Q4 Preview. Its upgrades focus on more expressive performances, better control over camera movement and cuts, and richer visual effects. It also supports image and voice references for scenes built around recurring characters.
Can Vidu Q4 generate a video from text alone?
Both Vidu Q4 modes on Picir AI require an image. Image to Video animates a single starting picture, while Reference to Video uses a collection of images to guide subjects and settings. Add a written prompt in either mode to explain what should happen.
How long can Vidu Q4 videos be, and which resolutions can I choose?
On Picir AI, both modes offer every whole-second duration from 3 to 16 seconds. Resolution options are 540p, 720p, 1080p, 2K, and 4K. For a longer finished video, plan several short clips and combine them in an editor.
How many reference images and voice samples can I upload?
Reference to Video accepts 1–15 images and up to three optional MP3 recordings. Each audio sample must be 3–12 seconds long, and the upload limit is 50 MB per file. Image to Video uses one image and does not offer voice reference uploads.
Does Vidu Q4 generate audio and match speech to the character?
Vidu Q4 supports generated sound and speech with matching lip movement. Generate Audio starts enabled on Picir AI, and you can switch it off for silent output. Use the prompt to describe dialogue and sound, with optional voice references in Reference to Video mode.
Which aspect ratios does Vidu Q4 support?
Image to Video follows the proportions of your uploaded picture. Reference to Video offers five format choices: 16:9, 9:16, 1:1, 4:3, and 3:4. Choose the format before generating to suit a landscape screen, portrait feed, or square layout.
How much does Vidu Q4 cost on Picir AI?
Vidu Q4 uses credits based on clip length and output resolution. The generator displays the cost for your selected settings before you submit; a 5-second clip at the default 720p setting currently uses 50 credits. See the pricing page for available plans and credit options.
How should I write a Vidu Q4 prompt?
Describe who is in the scene, what they do, how they feel, and where the camera moves. Add dialogue, ambient sounds, or effects when they matter to the scene. Keep actions in sequence and allow enough time for each moment within your chosen duration.
Can I use Vidu Q4 videos in a commercial project?
Review the Terms of Service for the conditions that apply to your generated assets. Commercial use also depends on your rights to the uploaded images, recorded voices, and any protected material in the result. A generated video does not itself clear third-party rights.
Where can I use Vidu Q4?
You can use Vidu Q4 on Picir AI.