Demo 1
Volcano-rim scene
A cinematic shot where duration and framing shape model choice.
Model specification comparison for 2026
Seedance 2.5 vs Sora 2 vs Veo 3.1
Seedance 2.5 offers the longest single generation of these model families at up to 30 seconds. Sora 2 is listed at 4, 8, or 12 seconds, while the compared Veo 3.1 variants reach 8 seconds. Choose by verified duration, output size, aspect ratio, references, and the shot plan rather than an unsupported quality ranking.
- 30 sec
- Seedance 2.5
- 12 sec
- Sora 2 listed max
- 8 sec
- Veo 3.1 listed max
Render proof
AI Video Model Render Examples
Two cinematic, motion-heavy examples illustrate why duration, framing, and shot planning matter when selecting a model.
Demo 2
Blizzard scene
Complex motion and atmosphere in a tightly planned shot.
Capability comparison
What are the core differences?
Seedance 2.5 is made by ByteDance, Sora 2 by OpenAI, and Veo 3.1 by Google. Seedance offers the longest single generation of these families at up to 30 seconds. These are capability and registry comparisons, not output-quality rankings; a listed maximum does not prove every platform exposes every option.
| Model | Listed durations | Listed output | Reference input |
|---|---|---|---|
| Seedance 2.5 | Up to 30s | Up to 4K | 30 images, 10 videos, 10 audio |
| Sora 2 | 4s, 8s, 12s | 1280x720 or 720x1280 input frame sizes | 1 image |
| Veo 3.1 | 4s, 6s, 8s on listed quality/fast entries | 720p, 1080p, 4K | 2 or 3 images by variant |
Seedance reaches 30 seconds
Which model supports the longest clip?
Seedance 2.5 supports the longest one-shot at up to 30 seconds. Sora 2 is registered for 4, 8, and 12 seconds, while the listed Veo 3.1 choices reach 8 seconds.
Seedance is the direct fit when one continuous scene must run for 20 or 30 seconds. A 12-second ceiling can cover a compact action, and an 8-second ceiling one clear beat. For projects built from several short clips, the per-shot plan matters more than the single-generation maximum.
30s
Seedance 2.5 one-shot
Fifty combined files
Which model lists the broadest reference capacity?
Seedance 2.5 lists the broadest reference capacity at 50 combined files: up to 30 images, 10 videos, and 10 audio references for one generation.
Reviral's Sora 2 entry lists 1 reference image. Its Veo 3.1 entries list 2 or 3 reference images depending on the variant. This is a raw input-capacity comparison, not a claim about how well any model follows a reference. Use Seedance when the brief requires several characters, products, places, movements, or audio cues in the same request.
Verify the selectable setting
How do resolution and aspect options compare?
Seedance 2.5 and the listed Veo 3.1 variants both reach up to 4K. Reviral's official Sora 2 entry specifies 1280x720 for 16:9 and 720x1280 for 9:16 reference frame sizes.
The Veo 3.1 registry lists 720p, 1080p, and 4K, with 16:9 and 9:16 aspects. Seedance 2.5 also supports output up to 4K and vertical or widescreen scenes through platform controls. Compare the exact selectable setting before generation because a registry capability and a customer-visible tier are different facts.
One shot or several shots
Which model should you use for a 30-second ad?
Use Seedance 2.5 if the ad must be generated as 1 continuous 30-second shot. Neither the 12-second Sora 2 maximum nor the 8-second Veo 3.1 maximum listed here reaches that length in one clip.
If the ad is designed as 4 separate shots, any family can fit an 8-second-per-shot plan. Write the shot list first, then choose a model per shot by required duration, resolution, aspect, and references. Do not turn a multi-shot edit into a benchmark claim: this specification table says nothing about which output looks better.
Published 1080p prices
How much does Seedance 2.5 cost on Reviral?
The visible 1080p tier starts at 30 credits or $0.59 for 4 seconds. It also lists 10 seconds for $1.46, 20 seconds for $2.91, and 29 seconds for $4.21.
Those are the only cost figures used here because this comparison does not invent cross-platform prices. One Reviral credit equals $0.0195, and the selected total appears before rendering. See /seedance-2-5-pricing for the calculations.
Start from verified constraints
How should you choose between the 3 models?
Choose from constraints you can verify: seconds, resolution, aspect, and reference count. Seedance 2.5 is the specification match for a 30-second one-shot or a reference-heavy scene.
Sora 2 fits a 4-, 8-, or 12-second plan with 16:9 or 9:16 framing. Veo 3.1 fits a 4-, 6-, or 8-second plan on the listed variants and lists 720p through 4K. Start at /seedance-2-5, or use /tools/prompt-to-video to define the shot before selecting a model.
Match the model to the shot
Start a Seedance 2.5 Project
Define the shot, choose the needed duration and references, and review the price before generation.
Start freeLast updated: August 10, 2026