Seedance 2.0 vs Kling 3.0: Cost per Second, Verdict

Kling 3.0 costs $0.1134/sec for Standard video with native audio, versus $0.0875/sec for Seedance 2.0 Mini at 720p, making Kling the cheaper route on that matched listed configuration. Seedance 2.0 justifies the higher rate when the prompt needs up to nine images, three videos, and three audio tracks addressed individually. Both support native audio and multi-shot output.

TL;DR: Pick Seedance 2.0 when the prompt needs reference images, source video, and reference audio in one call. Pick Kling 3.0 when price is the priority: current native-audio rates are $0.1134/sec Standard, $0.1512/sec Pro, and $0.378/sec at 4K. Both reach 4K and support multi-shot output. Our rates in this post refresh from the live price list on every deploy; the live rate card lists every mode.

SeeDance 2.0 vs Kling 3.0 at a glance

What SeeDance 2.0 is

SeeDance 2.0 is ByteDance's February 2026 video model. It introduces multimodal omni-reference to the SeeDance line. A single generate call accepts a prompt plus up to nine reference images, three reference videos, and three reference audio tracks, all addressable in the prompt with placeholders like @Image1, @Video1, and @Audio1. The model also generates synchronized audio in the same pass, with millisecond lip-sync across multiple languages.

The other big shift is multi-shot storytelling. SeeDance 2.0 can render multiple shots in one call while keeping the same character recognisable across them. Combined with the 15-second max single-video duration, that makes it strong for short narrative arcs.

What Kling 3.0 is

Kling 3.0 is Kuaishou's February 2026 flagship. It steps Kling up from "fast and cheap" to a proper flagship. Three things define it: 4K output on the Ultra variant, multi-shot mode (2 to 6 connected scenes in one call with shared character consistency), and Audio 2.0 with multi-language lip-sync across English, Chinese, Japanese, Korean, and Spanish.

The other interesting piece is the Visual Chain-of-Thought reasoning Kuaishou added in 3.0. It is a planning step before generation that produces stronger scene composition on complex prompts than 2.6 ever did.

Where each model wins

SeeDance 2.0 wins on

• Multimodal references in one call. Nine images, three videos, three audio tracks, addressable by name in the prompt. Kling 3.0's Elements 3.0 caps at four reference images plus a video lock.
• Aspect-ratio coverage. 1:1, 4:3, 16:9, 9:16. Kling 3.0 supports 1:1, 16:9, 9:16 (no 4:3).
• Audio matching from reference. Pass an audio track in the omni-reference set and the model tries to match its mood and style. Kling 3.0 generates audio but does not accept reference audio as an input.
• Cinematic camera controls as named parameters (push, pull, pan, tilt, orbit) instead of relying on prompt language alone.

Kling 3.0 wins on

• Per-second cost. With native audio, Kling Standard is $0.1134/sec and Pro is $0.1512/sec. Seedance 2.0 Mini is $0.0875/sec at 720p; Pro is $0.31/sec at 1080p. For a 10-second 720p video, that is $1.134 on Kling versus $0.875 on Seedance Mini.
• Multi-language lip-sync. Audio 2.0 is tuned across five languages with phoneme alignment. SeeDance also does multi-language lip-sync, but Kling 3.0 documents the language list directly.
• Visual Chain-of-Thought reasoning. Plans the scene before generating. Useful for prompts with complex spatial relationships.
• Variant ladder for 4K delivery. Standard for drafts, Pro for paid placements, Ultra for 4K hero work, with no separate upscale step.

Pricing math: side-by-side

Both models price by output second. This table compares current UnificAlly routes with native audio enabled.

Kling 3.0 is the cheaper listed route in these matched resolution/audio examples. Seedance 2.0 is the better fit when the prompt actually uses its larger omni-reference surface. A lower price does not replace input capabilities the task requires.

Run Kling 3.0 from $0.1134/sec with native audio, or use Seedance 2.0 for reference-heavy generation.

When to pick SeeDance 2.0

• Your prompt references multiple assets (images, source videos, audio mood) and you want to wire them in by name (@Image1, @Video1, @Audio1).
• You need 1:1 or 4:3 as a first-class aspect ratio.
• You want named cinematic camera controls (push, pull, pan, tilt, orbit) rather than prompt-only camera direction.
• You're producing character-driven content where the audio mood matters as much as the visual.

When to pick Kling 3.0

• You need 4K output at the lowest per-second cost.
• Per-second cost matters and you want the lowest list price among the flagship Chinese video models.
• Your delivery targets multi-language audiences (English, Chinese, Japanese, Korean, Spanish) and you want clean lip-sync per language.
• You're producing 3 to 6 connected scenes with consistent characters where 4K Ultra delivery is the goal.
• You want the Standard / Pro / Ultra variant ladder built into the same model.

Code: calling each model on UnificAlly

Both use the same async pattern: POST a generation, poll the task endpoint, fetch the MP4.

SeeDance 2.0 Pro (omni-reference, multi-shot)

const API = 'https://api.unifically.com';
const headers = {
  Authorization: `Bearer ${process.env.UNIFICALLY_API_KEY}`,
  'Content-Type': 'application/json',
};

const start = await fetch(`${API}/v1/tasks`, {
  method: 'POST',
  headers,
  body: JSON.stringify({
    model: 'bytedance/seedance-2.0-pro',
    input: {
      prompt:
        'Shot 1: a chef in @Image1 plates the dish from @Image2. Shot 2: she walks the plate to the dining room. Soundtrack matches the mood of @Audio1.',
      aspect_ratio: '16:9',
      duration: 15,
      images: ['https://example.com/chef.jpg', 'https://example.com/dish.jpg'],
      audio: ['https://example.com/jazz-mood.mp3'],
    },
  }),
}).then((r) => r.json());

Kling 3.0 Pro (multi-shot, 1080p)

const start = await fetch(`${API}/v1/tasks`, {
  method: 'POST',
  headers,
  body: JSON.stringify({
    model: 'kuaishou/kling-3.0-video',
    input: {
      mode: 'multi_shot',
      duration: 15,
      aspect_ratio: '16:9',
      quality: 'pro',
      shots: [
        { prompt: 'Establishing shot: a chef walks into a sunlit kitchen', duration: 5 },
        { prompt: 'Medium shot: she plates the dish with deliberate care', duration: 5 },
        { prompt: 'Close-up: she serves it to a guest, who smiles', duration: 5 },
      ],
    },
  }),
}).then((r) => r.json());

Polling is identical. /v1/tasks/{task_id} is the same endpoint for every UnificAlly model.

Things to watch for

• Expecting 1080p or 4K from SeeDance Fast or Mini. SeeDance 2.0 Fast and Mini stop at 720p. Draft on Fast and move the keeper to Pro when the shot needs 1080p, 4K, or Pro's quality.
• Treating Kling 3.0 Elements 3.0 like SeeDance 2.0 omni-reference. Elements caps at four reference images plus a video lock. SeeDance 2.0 takes nine images, three videos, and three audio tracks per call.
• Defaulting to Pro on every iteration. Both expose lower variants (SeeDance 2.0 Fast, Kling 3.0 Standard) for drafting cheaply. Promote to Pro / Ultra only after a result survives review.
• Using 4:3 prompts on Kling 3.0. Kling 3.0 supports 16:9, 9:16, and 1:1. For 4:3, SeeDance 2.0 is the better choice.
• Comparing silent and native-audio rates. Kling 3.0 starts at $0.0756/sec without native audio, but a matched native-audio comparison starts at $0.1134/sec. State which mode the price covers.

Seedance 2.0 vs Kling 3.0 FAQ

What is the main difference between SeeDance 2.0 and Kling 3.0?

Seedance 2.0 wins on multimodal omni-reference: nine images, three videos, and three audio tracks per call, addressable by name in the prompt. Kling 3.0 wins on per-second cost and multi-language lip-sync; both reach 4K.

Which is cheaper, SeeDance 2.0 or Kling 3.0?

For a matched 720p native-audio request, Kling 3.0 Standard costs $0.1134/sec and Seedance 2.0 Mini costs $0.0875/sec. Kling is cheaper: $1.134 versus $0.875 for ten seconds.

Does Kling 3.0 support 4K?

Yes, on the Ultra variant. SeeDance 2.0 also reaches 4K on its Pro variant through UnificAlly, while Fast and Mini stop at 720p. For 4K work, compare per-second cost and how reference-heavy the prompt is.

Can both models do multi-shot output?

Yes. SeeDance 2.0 generates multi-shot narrative with character consistency across scenes. Kling 3.0 multi-shot mode renders 2 to 6 connected scenes in one call totalling 3 to 15 seconds. Both keep the same character recognisable across shots in a single generate.

Which model should I pick for a 15-second multi-shot ad with multiple reference assets?

If the references are mostly images (≤ 4) and per-second cost matters, pick Kling 3.0 Ultra with Elements 3.0. If the references span multiple images plus a source video plus a target audio mood, pick SeeDance 2.0 Pro. The omni-reference surface is the differentiator.

Related reading on Seedance 2.0 vs Kling 3.0

• SeeDance 2.0 deep dive: full specs, modes, and code samples.
• Veo 3.1 vs SeeDance 2.0: the other flagship comparison.
• Kling 3.0 model page: live playground and parameter reference.
• SeeDance 2.0 model page: Pro and Fast playgrounds.
• Kling 3.0 Omni and MiniMax Hailuo: other video APIs to consider.