Vidu Q4 made noise for the right reasons: 4K output, native audio, and a reference-to-video mode that blends up to 15 photos into one shot. But it has real constraints. It only accepts images (no text-to-video), clips cap at 16 seconds, and 4K runs 73 credits per second, which adds up faster than people expect.
Depending on which constraint is biting you, a different model may be the better tool. Here are the four alternatives worth knowing, with October 2026 pricing on Domer in credits.
First, what Vidu Q4 is good at
Baseline before comparing: Vidu Q4 turns a photo into a moving clip at 540p through 4K, 3 to 16 seconds, with sound generated alongside the frames. Its 720p rate is 18 credits per second and a default 5-second 720p clip is 90 credits. It is image-to-video only, so the composition comes from you.
If that matches your workflow, stop reading and use it in the image-to-video generator. The alternatives below solve four specific problems.
Kling 4.0: when you need to start from text
The top constraint for Vidu Q4 is the image requirement. Kling 4.0 takes a prompt alone, which changes the creative loop entirely: describe the shot, generate, revise the description. It also takes a single image or a first and last frame, so it covers Vidu's core mode plus two more.
What you give up: resolution and rate. Kling 4.0 tops out at 1080p against Vidu's 4K, and its 720p rate is 36 credits per second, double Vidu's. Durations run 3 to 30 seconds, nearly double Vidu's 16.
Choose it for prompt-first workflows, story beats that need 20 or more seconds, or end-frame control.
Seedance 2.5: when 16 seconds is not enough
Vidu Q4 stops at 16 seconds. Seedance 2.5 runs to 30, at 480p, 720p, or 1080p, for 18, 40, and 90 credits per second without a reference video. It also accepts reference videos and bills on input plus output duration, which Vidu does not do at all, so you can drive new footage with the motion from an existing clip.
The 4K gap is real, Seedance tops at 1080p, and its per-second rate at 720p (40) exceeds Vidu's (18) despite the lower ceiling. This is the long-form and motion-transfer option, not the budget one.
Wan 3.0: when the budget is the constraint
Wan 3.0 is the volume tool: 15, 32, and 72 credits per second at 480p, 720p, and 1080p, durations to 30 seconds, first and last frame support, and a Prime variant one step up. At 720p it costs more per second than Vidu Q4 (32 against 18), so its win is at the low end: 480p at 15 credits per second is the cheapest per-second rate of any serious model in the catalog.
Draft work is where that matters. Testing ten variations of a shot at 480p on Wan costs a fraction of testing them at 720p on Vidu. Lock the winner, then render the final on Vidu Q4 at 2K or 4K if sharpness is the point.
Runway Gen-4: the comparison everyone asks about
Runway is the brand people mean when they say alternative, so here is the honest positioning. Gen-4 brings strong motion consistency and a mature editing ecosystem, but it is subscription-first: access rides on Runway's plans, generations come from a shared monthly pool, and per-clip economics get opaque fast.
On Domer, credit-per-clip is the whole model: 90 credits for a 5-second Vidu Q4 720p clip, charged per generation, packs never expire. If you generate in bursts, a few heavy weeks then quiet months, pay-per-credit beats a monthly pool that resets. If you live inside Runway's editor daily, stay there; the switching cost is real and the tools are good.
Side by side
| Vidu Q4 | Kling 4.0 | Seedance 2.5 | Wan 3.0 | |
|---|---|---|---|---|
| Input | Image | Text, image, first+last | Text, image, video ref | Text, image, first+last |
| Max resolution | 4K | 1080p | 1080p | 1080p |
| Max duration | 16s | 30s | 30s | 30s |
| Rate at 720p | 18 credits/s | 36 credits/s | 60 credits/s | 32 credits/s |
| Native audio | Yes, default on | Yes | Yes | Optional |
| 4K available | Yes | No | No | No |
The combination that works
Most teams we watch end up with two models, not one. A common split: Wan 3.0 or Vidu Q4 at 540p for cheap drafts, then Vidu Q4 at 4K (365 credits per 5 seconds) for the render that ships. Kling 4.0 enters when a shot must start from a prompt or run past 16 seconds.
Draft low, finish high, and per-clip costs stay predictable in a way subscription pools never are.
FAQ
What is the best Vidu Q4 alternative?
Kling 4.0, if your blocker is the image requirement: it starts from text, runs to 30 seconds, and adds first/last frame control. If your blocker is budget at 480p drafts, Wan 3.0 at 15 credits per second is the cheapest serious option.
Is there anything cheaper than Vidu Q4 at 720p?
No model undercuts Vidu's 18 credits per second at 720p. Its own 540p tier runs 10 credits per second, and Wan 3.0's 480p runs 15, if you can accept a lower ceiling for drafts.
Which AI video model outputs 4K?
Vidu Q4 is currently the only one on Domer, at 36 credits per second for 2K and 73 for 4K. Everything else tops out at 1080p.
Does Vidu Q4 make text-to-video?
Not on Domer. It is image-to-video only. Kling 4.0, Seedance 2.5, and Wan 3.0 all accept prompts alone.
How much does a 4K Vidu Q4 clip cost?
73 credits per second: 365 credits for 5 seconds, 1,168 for 16. The 2K tier (36 credits per second) at 180 credits for 5 seconds is the popular middle ground.
