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Vidu Q4 — Turn Your References into Video

Animate a first frame or guide a scene with references. Vidu Q4 Preview creates short videos with optional sound and resolutions up to 4K.

Image-to-videoReference-to-videoAudio referencesOptional soundtrack
Highlights
Vidu Q4 Preview · 3–16 seconds · up to 4K
Best for
Product motion, character references, short scene studies
Input
One first frame or 1–15 reference images; optional audio references
Output
Video with optional generated sound
Input
113/20000

Optional with a first frame; required for references. Documented maximum: 20,000 characters.

0/1 file

Animate one image with Vidu Q4. Use this OR reference inputs; the output follows the image's aspect ratio.

0/15 files

One image alone selects first-frame mode; 2–15 select references. For one reference, use Image roles JSON.

0/3 files

Reference mode only, alongside images. Up to 3 MP3 files, each 3–12 seconds and no more than 50 MB.

Default 720p. Higher tiers cost more per second; check the estimate.

5

Vidu Q4: 3–16 whole seconds, default 5.

Enabled by default. Switching sound off does not change the Vidu Q4 rate.

Optional; reference mode defaults to 16:9. First-frame video follows the supplied image instead.

Estimated cost~$0.537537 credits
Result

Try one of these prompts

Billing

  • ·Vidu Q4 is charged by video duration and resolution.
  • ·Turning generated audio off does not change the rate.
  • ·Failed generations are refunded automatically.

Pricing

Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.

First test cost
$0.264264 credits

One 5-second sample at the cheapest tier.

Testing budget guide
Add credits
$10
≈ 37 tests
$50
≈ 189 tests
$100
≈ 379 tests
540p
$0.05271
Price · 1 second
720p
$0.10730
Price · 1 second
1080p
$0.12048
Price · 1 second
2K
$0.19106
Price · 1 second
4K
$0.39153
Price · 1 second

What is Vidu Q4?

Vidu Q4 is Vidu's video model for animating a starting image or building a scene from visual and audio references. Its Preview release appeared in the official API update log on October 7, 2026. Choose a first frame for a defined opening composition, or references to guide a new shot.

What you can build with this model

Real-world workflows and production use cases you can build and ship with this model.

Product motion with Vidu Q4

Use Vidu Q4 to explore a gentle camera move around an existing product shot. A first frame sets the opening composition, leaving your prompt to describe movement and mood. Start with a short draft and inspect labels and edges before choosing a take for your edit.

Animate with Vidu Q4

Plan a Vidu Q4 reference scene

Bring character, object, and setting references into a Vidu Q4 shot. Reference mode accepts a collection of images and a written scene direction, so you do not have to describe every visual detail from memory. Keep the inputs relevant and check identity and composition in the result.

Explore sound with Vidu Q4

Explore a slow camera move past a coastal pavilion as curtains shift and waves roll below. Vidu Q4 generates ambient audio alongside the scene. Watch the five-second clip with sound, then judge whether the movement and audio suit your edit.

Watch with sound

Why reAPI for Vidu Q4

Vidu Q4 starts with your material

Choose a finished first frame for a defined opening, or references to guide a new composition. Both use Vidu Q4; choose by the shot you need.

Choose the Vidu Q4 output you need

Explore motion in a lower-resolution draft before ordering a larger output. Vidu Q4 offers up to 4K; inspect identity, motion, and prompt adherence in the returned clip.

Estimate each Vidu Q4 clip

Vidu Q4 pricing follows duration and resolution. Both input modes use the same tier rate, with sound on or off. Review the estimate; the total request is rounded once to whole credits.

Prepare your first Vidu Q4 request

  1. step 01

    Choose a Vidu Q4 starting point

    Prepare an image for Vidu Q4, then decide whether it should be the opening frame or a reference. API media links must be publicly reachable HTTP(S) URLs; local file paths and inline base64 are not supported.

    Open
  2. step 02

    Describe one clear Vidu Q4 shot

    Write the action, camera movement, and sound you want. Select a short duration and review the estimate. With one reference image, assign its reference role explicitly so it does not become a first frame.

    Open
  3. step 03

    Retrieve and review the Vidu Q4 clip

    Submit once and keep the task ID. Poll until completion or failure, then review the returned video. Check motion, sound, framing, and visible text before using your Vidu Q4 clip.

    Open

Capabilities

First-frame motion

Animate an existing composition with Vidu Q4 and describe the movement you want.

Visual references

Bring up to 15 images into a scene with a connecting prompt.

Optional sound

Generate audio with Vidu Q4, or switch it off for silent footage.

Short sequences

Choose 3–16 seconds to fit the moment you are planning.

Resolution choices

Vidu Q4 offers output up to 4K, with lower resolutions for drafts.

Flexible framing

Choose portrait, landscape or square proportions when working with reference images.

Frequently asked questions

Common questions about this model.

This page covers Vidu Q4 Preview. Vidu's official API update log records its addition on October 7, 2026; that date describes the Preview release, not a separately announced final version. The public model ID for this integration is viduq4-preview.

Vidu Q4 vs Vidu Q3: what changes?

Vidu Q4 Preview expands the documented output resolution and reference-image allowance. Vidu Q3 remains relevant for text-only starts; choose the model by the input your shot needs.

Capability
Vidu Q4 Preview
Vidu Q3 family
Highest output tier
4K
1080p in Q3 Pro and Turbo
Maximum clip length
16 seconds
16 seconds in Q3 Pro and Turbo
Text-only start
Image or reference inputs required
Documented for Q3 Pro and Turbo
Reference images
1–15 images
1–7 in the ordinary Q3 image-reference path

Based on Vidu documentation reviewed October 22, 2026, not a side-by-side quality test. Q3 features vary by variant and are not all exposed by every integration. The clips above are five-second Vidu Q4 samples made from AI-generated source images.

Related models

Explore more models in the same category.

View all models
docs/api/vidu-q4

API reference

Drop-in code and the full parameter table.

View full reference
curl https://reapi.ai/api/v1/videos/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"viduq4-preview","first_frame_image":"https://cdn.deepytb.com/landing/kling-3-0-turbo/playground-input.jpeg","prompt":"A slow cinematic push in, with subtle natural movement","duration":5,"resolution":"720p","audio":true}'

Vidu Q4 request or pricing issue

Check media URLs, the priced resolution, and duration. Model-specific fields are forwarded for generation-time validation; an accepted request does not prove an extension took effect.

Authentication or balance issue

401 means a missing or invalid Bearer key; 402 means the reserve exceeds your balance. Manage keys and credits in the console.

Content or material rejected

Reference material and outputs pass automated moderation. Rejected tasks fail with a clear error and a full refund.

Task failed or timed out

A task that reaches a failed state is never charged — the reserve refunds automatically. Keep the task id and retry when ready.

start building

Ready to ship?

Try it in the playground or grab an API key to integrate now.

Try Vidu Q4Vidu Q4 documentation