CompareVideo model comparison

Kling 3 vs Seedance 2.5

Seedance 2.5 is the audio-capable follow-up to the Seedance 2 matchup: unlike Seedance 2, it can render sound, and it defaults to doing so. Kling 3 keeps the 4K entry and Vizify's default slot; Seedance 2.5 reaches 30 seconds and takes far more reference material.

Capabilities reviewed 2026-09-26 · Evidence reviewed 2026-09-26

Open AI Video Generator
How this comparison was made

Method and test inputs

This page compares the create-request contracts Vizify publishes for kling-3 and seedance-2.5 in its generation catalog: resolution, duration, audio, aspect ratio, and every declared reference type. Access comes from the product configuration. No clips were generated to judge motion or sound, and no external benchmark is cited.

  • Generation catalog video parameters for kling-3 and seedance-2.5
  • Declared image, video, and audio reference limits for both models
  • Default video model in the Vizify app profile
  • Video-generation gate in the product configuration
Side by side

Kling 3 vs Seedance 2.5

CriterionKling 3Seedance 2.5
Default video model in VizifyYesNo
Resolution720p, 1080p, 4K (720p default)480p, 720p, 1080p (720p default)
Duration3–15 s in 1 s steps (5 s default)4–30 s in 1 s steps (5 s default)
AudioOptional; off by defaultOptional; on by default
Aspect ratios16:9, 9:16, 1:1 (9:16 default)Adaptive, 16:9, 4:3, 1:1, 3:4, 9:16, 21:9 (adaptive default)
Reference images0–20–30
Video and audio referencesNot exposed in VizifyUp to 10 video clips (MP4/MOV) and 10 audio clips (WAV/MP3), each 2–30 s, at most 30 s in total per type
AccessPro or a credit pack; no free video allowancePro or a credit pack; no free video allowance
Choosing

Which one fits your task

Option A

Kling 3

Vizify's default video model: 720p, 1080p, or 4K, 3 to 15 seconds, and audio that stays off unless you ask for it.

  • Clips that need a 4K render
  • Silent clips by default, with sound only when requested
  • Short cuts down to 3 seconds in 16:9, 9:16, or 1:1

Kling 3 is the one to open for 4K output, for clips under 4 seconds, or when you want silence unless you ask for sound. It is also what Vizify uses when no video model is named.

AI Video Generator does not preselect a model; name Kling 3 in your brief to request it.

Open AI Video GeneratorKling 3 details
Option B

Seedance 2.5

A single Seedance 2.5 policy: 480p to 1080p, any length from 4 to 30 seconds, audio on by default, and up to 30 reference images.

  • Shots longer than 15 seconds, up to 30
  • Clips where sound should be on unless you switch it off
  • Briefs guided by many stills or by short video and audio clips

Seedance 2.5 is the one to open for shots between 15 and 30 seconds, wider framing such as 21:9 or 4:3, or briefs that rely on many reference images or short video and audio clips. Turn audio off if you need a silent clip.

AI Video Generator does not preselect a model; name Seedance 2.5 in your brief to request it.

Open AI Video GeneratorSeedance 2.5 details
Before you rely on this

Current limitations

  • Parameters are Vizify's own create contract on 2026-09-26; motion, lip movement, and audio quality were not evaluated.
  • Seedance 2.5's audio choice is fixed once a job starts; switching it means starting a new generation.
  • Kling 3 Turbo and Kling 3 Omni share the Kling 3 page but have different limits and are not covered here.
  • Every clip is generated by one model per job. Vizify does not produce a Kling 3 and a Seedance 2.5 take of the same prompt together.
  • Reference limits describe what the model accepts; the Site's video tools may accept fewer uploads on the page itself.

The Kling 3 vs Seedance 2 page ends on a caveat: Seedance 2 is silent in Vizify. Seedance 2.5 removes that caveat, so this page puts it against Kling 3 directly. Both models now offer optional audio, but their defaults are opposite — Kling 3 starts silent and Seedance 2.5 starts with sound — which is easy to miss when you move a brief from one model to the other.

Length and resolution pull in different directions. Kling 3 lists a 4K entry and accepts clips as short as 3 seconds, topping out at 15. Seedance 2.5 stops at 1080p but runs anywhere from 4 to 30 seconds, and it adds a 480p draft entry. If a single shot needs to run past 15 seconds, Seedance 2.5 is the only one of the two that can do it in one job.

Reference input is the other large gap. Kling 3 accepts up to two images. Seedance 2.5 accepts up to 30 images and also declares short video and audio clips as references, which suits briefs built around existing footage or a sound cue. Both models need Pro or a credit pack; Vizify has no free video allowance.

FAQ

Questions about Kling 3 and Seedance 2.5

Does Seedance 2.5 generate audio in Vizify?

Yes. Audio is optional on Seedance 2.5 and switched on by default. You can turn it off for a silent clip before the job starts.

How is this different from the Kling 3 vs Seedance 2 page?

Seedance 2 has no audio option in Vizify and lists a 4K entry, while Seedance 2.5 adds optional audio, runs up to 30 seconds instead of 15, and drops 4K in favor of 480p to 1080p.

Which model supports longer clips?

Seedance 2.5, at up to 30 seconds. Kling 3 goes up to 15 seconds but starts lower, at 3 seconds.

Can Seedance 2.5 render 4K?

Not in Vizify. Its resolution entries are 480p, 720p, and 1080p. Kling 3 is the one of the two with a 4K entry.

What reference material can each model use?

Kling 3 accepts up to two reference images. Seedance 2.5 accepts up to 30 reference images and also declares up to ten video and ten audio reference clips of 2 to 30 seconds each.

Can I try either model for free?

No. Video generation in Vizify needs Pro or a credit pack purchase, and there is no free video allowance.

Related

Keep comparing

Kling 3 vs Seedance 2

The earlier matchup against Seedance 2, which has no audio option in Vizify.

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Seedance 2.5 model page

Duration, resolution, audio, and reference limits for Seedance 2.5.

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Kling 3 video models

Kling 3, Kling 3 Turbo, and Kling 3 Omni in Vizify.

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AI Video Generator with Audio

A short clip that must come back with a sound track.

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Seedance 2.5 vs Veo 3.1

Seedance 2.5 against a model whose audio is always on.

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Vizify pricing

Pro and credit-pack access for video generation.

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Plan a clip

Open Vizify and create a clip with Kling 3 or Seedance 2.5.

Open Vizify Browse all models