Cheaper Gen.

Video model comparison

Vidu Q3 Mix vs Vidu Q4

Shengshu's Vidu Q3 Mix and Shengshu's Vidu Q4, side by side: price per second, resolution, clip length, audio and references — and when to choose which. Both run on one Cheaper Gen. API key.

Price

Vidu Q3 Mix vs Vidu Q4: price per second

Live prices at the tiers both models offer. Official list prices are on each model's pricing page.

Vidu Q3 Mix and Vidu Q4 prices at shared tiers
TierVidu Q3 MixVidu Q4Per clipCheaper
720p$0.11/s
silent
$0.0836/s
with audio
$0.55 · $0.42
5 s each
Vidu Q4 −24%
1080p$0.132/s
silent
$0.1056/s
with audio
$0.66 · $0.53
5 s each
Vidu Q4 −20%

Specs

Side-by-side specifications

From each model's API parameters in our catalog.

Vidu Q3 Mix vs Vidu Q4 specifications
SpecVidu Q3 MixVidu Q4
DeveloperShengshuShengshu
ReleasedApr 13, 2026Oct 7, 2026
TasksReference to videoImage to video, Reference to video
Resolutions720p · 1080p540p · 720p · 1080p · 2K · 4K
Clip length3–15 s3–16 s
Audio—Included at no extra cost
Image-to-video—First frame
Reference inputsUp to 7 imagesUp to 15 images and 3 audio
Aspect ratios5 (16:9, 9:16, 1:1, 4:3, 3:4)5 (16:9, 9:16, 1:1, 4:3, 3:4)
Starting price$0.11/s (720p)$0.0396/s (540p)
Below official priceup to 9%up to 12%

Verdict

When to choose which

Each point below comes from the price and spec data above.

Choose Vidu Q3 Mix for

  • The same tasks at a similar price — pick by output style; try both in the Studio.

Vidu Q3 Mix at a glance

  • 7 references — Characters, products, places
  • 720p / 1080p — Premium quality
  • Audio included — Dialogue and effects
  • 3–15 seconds — Pay per second

Choose Vidu Q4 for

  • Lower price: $0.0836/s vs $0.11/s at 720p (24% less).
  • Higher maximum resolution: 4K vs 1080p.
  • Longer clips: up to 16 s vs 15 s.
  • Audio included at no extra cost.
  • More reference inputs: up to 15 images and 3 audio clips.
  • Image-to-video from a first frame.
  • Supports image to video.
  • Newer model (released October 7, 2026).

Vidu Q4 at a glance

  • Up to 4K — 540p to native 4K
  • 15 references — Plus 3 voice clips
  • Audio included — Dialogue and effects
  • 3–16 seconds — Pay per second

Try both with the same prompt

Same API key and balance; only the endpoint changes. Failed generations are refunded.

POST /api/v1/run/shengshu/vidu-q3-mix/reference-to-video
POST /api/v1/run/shengshu/vidu-q4/image-to-video

FAQ

Vidu Q3 Mix vs Vidu Q4 questions

Vidu Q4 is cheaper at 2 of 2 shared tiers. 720p: Vidu Q3 Mix $0.11/s silent, Vidu Q4 $0.0836/s with audio; 1080p: Vidu Q3 Mix $0.132/s silent, Vidu Q4 $0.1056/s with audio. Prices are live and billed per second.

Vidu Q3 Mix: 720p, 1080p, 3–15 s per clip. Vidu Q4: 540p, 720p, 1080p, 2K, 4K, 3–16 s per clip.

Vidu Q3 Mix: no audio option listed. Vidu Q4: Included at no extra cost.

Yes. Both run through the same Cheaper Gen. API and balance: POST /v1/run/{endpoint} with the model's endpoint id, then poll or receive a webhook. Switching models means changing the endpoint and its input fields — no new account or SDK.

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Vidu Q3 Mix is developed by Shengshu; Vidu Q4 by Shengshu. Cheaper Gen. provides API access to both through official upstream endpoints and does not own either model. Trademarks belong to their respective owners.