Both Omni and Seedance 2 accept a reference video as input. The interesting difference is not quality — it is that they count the billed seconds differently, and one of them counts the footage you supply.
A note on what this page is: we serve Omni, so those numbers are first-hand. We do not serve Seedance 2, so its figures come from our supplier's published price list rather than from our own testing. Where we have not verified something, it says so. Last updated July 2026.
TL;DR — Kling 3.0 Omni vs Seedance 2
- Omni bills output length only. 45 credits/sec silent, 60 with audio in Standard. The reference clip you feed it costs nothing to supply.
- Seedance 2's video-input tiers bill output plus the reference clip. Its own price list defines billed seconds as
output duration + reference_video_urls duration. - That inverts the comparison on short edits. A 5-second edit from a 10-second reference is billed as 15 seconds on Seedance 2, and 5 on Omni.
- Seedance 2 has resolution tiers Omni does not — including 4K, where Omni stops at 1080p.
- We have not benchmarked output quality between them and do not publish a winner we did not measure.
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Kling 3.0 Omni vs Seedance 2: the billing difference
Omni rates from our live generator; Seedance 2 figures from our supplier's published price list.
Read the two Omni and Seedance billing rules side by side and the pattern is clear.
Kling 3.0 Omni charges per second of output. Feed it a reference video and reference images; you pay for the clip that comes back, nothing more. A 5-second edit is 5 seconds of billing.
Seedance 2, on its video-input tiers, defines billed seconds as the output duration plus the duration of the reference videos you supplied. A 5-second edit built on a 10-second reference is billed as 15 seconds.
This matters because a per-second rate and a billed-second count are two different things. Whichever model you use, what you pay is rate multiplied by billed seconds — so a rule that adds your reference clip to the second count changes the total even when the rate does not move.
The practical Omni consequence: trim your reference before uploading. On Omni it changes nothing; on a model billing this way it changes the invoice.
What Kling 3.0 Omni does, spelled out
Omni resolution. Seedance 2's price list runs 480p, 720p, 1080p and 4K. Omni offers 720p in Standard and 1080p in Pro, with no 4K tier at all. If the deliverable is 4K, Kling 3.0 Omni cannot produce it — though on this platform Kling 3.0 does, at 65 credits/sec.
Omni takes up to 7 reference images, dropping to 4 when a reference video is loaded alongside them. They are what the model uses to keep a character's appearance, clothing and features consistent across generated shots — the mechanism behind recurring characters and brand mascots.
Omni has two distinct reference modes. Base preserves the source clip's movement and timing while your prompt changes appearance; Feature treats the clip as a style guide while generating new motion. Picking the wrong one wastes the generation, which is why the distinction is worth knowing before you start.
Omni generates native audio with text or image input. With a reference video it preserves the source clip's audio rather than generating new.
What we deliberately do not claim
This section exists because most Omni-versus pages fill it with confident guesses.
We have not benchmarked output quality, motion coherence, or prompt adherence between these two models. We serve one of them, so a head-to-head we ran would not be a fair test, and we have not run one anyway. Anyone publishing a clean "X beats Y on quality" verdict without showing the clips is describing a preference.
We also do not restate Seedance 2's feature list beyond what its price tiers demonstrate. The tiers prove it accepts video input at every resolution and that it prices that input a particular way. They do not tell us its reference-image limit, its duration ceiling, or its audio behaviour — so this page does not either.
Kling 3.0 Omni or Seedance 2: which to reach for
Omni when the job is reference-driven and the source clip is long relative to the output: character consistency from images, a short edit off a long take, or a brand style to hold across shots. Billing on output alone is a real advantage precisely there.
Seedance 2 when you need a resolution tier Omni does not offer — 4K in particular. Factor its reference-duration billing into the comparison rather than reading the rate alone.
Neither, if the job is narrower than both: a talking head belongs on Kling Avatar V2 at 10 credits/sec, and editing footage specifically is cheaper on Kling O1 at 30 credits/sec with a video input, against Omni's 45.
More on the Seedance line generally is in our Seedance AI review and the Seedance 2.0 alternatives roundup.
FAQ
What is the main difference between Kling 3.0 Omni and Seedance 2?
How they bill video editing. Omni charges per second of output at 45 credits/sec silent in Standard. Seedance 2's video-input tiers define billed seconds as output duration plus the duration of the reference videos supplied, so the source clip's length is added to the bill.
Is Seedance 2 cheaper than Kling 3.0 Omni?
We do not publish a price comparison, because the two are billed on different bases. What we can say is the rule: Seedance 2's video-input tiers count your reference clip's duration as billed seconds, and Omni does not. On a short output built from a long reference, that gap is large — so compare total billed seconds, not the per-second rate.
Does Kling 3.0 Omni support 4K?
No. Omni outputs 720p in Standard and 1080p in Pro. Seedance 2's price list includes a 4K tier. On this platform, native 4K comes from Kling 3.0 at 65 credits per second.
Which produces better video?
We have not benchmarked them and do not publish a quality verdict we did not measure. We serve Omni, which makes any head-to-head we ran suspect by default — so we would rather say nothing than say something unearned.
Can both edit an existing video?
Omni does, through Base mode, which preserves the original movement and timing, or Feature mode, which uses the clip as a style guide while generating new motion. Seedance 2's price list shows video input across all its resolution tiers; what it does with that input we have not tested, so we do not describe it.
How many reference images does Kling 3.0 Omni take?
Up to 7 for character appearance and visual style, dropping to 4 when a reference video is loaded alongside them. We do not have a verified figure for Seedance 2, so we do not quote one.
What is the practical tip that saves the most money?
Trim the reference clip before uploading. On Omni it makes no difference to the bill; on a model that counts reference duration as billed seconds, every trimmed second is a second you do not pay for.
Before you pick between Kling 3.0 Omni and Seedance 2
The Omni rate per second is the number everyone compares, and the one that misleads most often here. Work out the billed seconds for your actual job — output length, plus reference length where the model counts it — and the comparison usually decides itself.
The neighbouring comparisons are Kling 3.0 vs Pika 2.0 and Kling 3.0 vs Runway Gen.
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