SeeDance 2.0 vs Kling 3.0: API Comparison and Pricing (2026)

SeeDance 2.0 (ByteDance) and Kling 3.0 (Kuaishou) are the two flagship Chinese video models worth shortlisting in May 2026. They overlap on a lot — both ship native synchronized audio, both do multi-shot narrative output in a single call, both target 4–15 second clips — and they split sharply on the rest. Multimodal omni-reference is SeeDance's lane; 4K output and a per-second cost floor below $0.05 are Kling's.

TL;DR: Pick SeeDance 2.0 when the prompt is reference-heavy — nine images, three video clips, and three audio clips per call addressable by @Image1 / @Video1 / @Audio1 placeholders. Pick Kling 3.0 when you need 4K output (Ultra tier), the lowest per-second cost ($0.05–0.063 starting), or multi-language lip-sync across English, Chinese, Japanese, Korean, and Spanish. Both deliver multi-shot narrative output and native audio in the same generate call.

SeeDance 2.0 vs Kling 3.0 at a glance

Spec	SeeDance 2.0	Kling 3.0
Provider	ByteDance	Kuaishou
Release	February 2026, public API April 2026	February 2026
Max single-clip duration	15 seconds	15 seconds
Resolution	720p on Unifically (Pro and Fast)	720p / 1080p / 4K on Ultra
Native audio	Yes, multi-language lip-sync (millisecond precision)	Yes, Audio 2.0 with lip-sync in 5 languages
Multi-shot in one call	Yes, multi-shot narrative with character consistency	Yes, 2 to 6 connected scenes per call
Reference inputs	9 images, 3 videos, 3 audio clips per call (omni-reference)	Up to 4 reference images via Elements 3.0; 3–8 second video reference locking
Aspect ratios	16:9, 9:16, 1:1, 4:3	16:9, 9:16, 1:1
Tiers on Unifically	Pro, Fast	Standard (720p), Pro (1080p), Ultra (4K)
List price (Unifically)	$0.08 per second	$0.05–0.063 per second starting

What SeeDance 2.0 is

SeeDance 2.0 is ByteDance's February 2026 video model, and the version that introduces multimodal omni-reference to the SeeDance line. A single generate call accepts a prompt plus up to nine reference images, three reference video clips, and three reference audio clips, 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 precision 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-clip duration, that makes it strong for short narrative arcs.

What Kling 3.0 is

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

The other interesting piece is the Visual Chain-of-Thought reasoning Kuaishou shipped with 3.0 — 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 video clips, three audio clips, 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 ships 1:1, 16:9, 9:16 (no 4:3).
Audio matching from reference. Pass an audio clip in the omni-reference set and the model tries to match its mood/style. Kling 3.0 generates audio but doesn't 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

4K output. True 4K via the Ultra tier. SeeDance 2.0 caps at 720p on Unifically.
Per-second cost. Starts at $0.05–0.063 per second vs SeeDance 2.0's $0.08. For a 10-second clip, that's $0.50–0.63 vs $0.80.
Multi-language lip-sync. Audio 2.0 is tuned across five languages with proper phoneme alignment. SeeDance also does multi-language lip-sync, but Kling 3.0 documents the language list explicitly.
Visual Chain-of-Thought reasoning. Plans the scene before generating. Useful for prompts with complex spatial relationships.
Tier ladder for 4K delivery. Standard for drafts, Pro for paid placements, Ultra for 4K hero work — without needing a separate upscale step.

Pricing math: side-by-side

The two models price per second, so the comparison normalises cleanly.

Use case	SeeDance 2.0 path	Kling 3.0 path	SeeDance cost	Kling cost
5-second draft	Fast (5s)	Standard 720p (5s)	$0.40	$0.25–0.32
10-second 1080p clip	Pro (10s) — caps at 720p	Pro 1080p (10s)	$0.80	$0.50–0.63
15-second multi-shot ad	Pro (15s, multi-shot)	Pro (15s, multi-shot)	$1.20	$0.75–0.95
4K hero shot	not supported	Ultra (8s, 4K)	n/a	Ultra rate
Reference-heavy 10s clip (9 images + audio)	Pro (omni-reference)	Pro + Elements 3.0	$0.80	$0.50–0.63

Read: Kling 3.0 is the cheaper option per second across the board and the only one that ships 4K. SeeDance 2.0 wins when the prompt actually exercises the omni-reference surface — nine-image multi-asset compositions with audio matching are not a Kling 3.0 workflow.

When to pick SeeDance 2.0

Your prompt references multiple assets — images, source clips, 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.
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 3–6 connected scenes with consistent characters where 4K Ultra delivery is the goal.
You want the Standard / Pro / Ultra tier 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.

Common mistakes when comparing them

Asking SeeDance 2.0 for 4K. Not supported on Unifically. Kling 3.0 Ultra is the 4K path.
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 clips per call.
Defaulting to Pro on every iteration. Both expose lower tiers (SeeDance 2.0 Fast, Kling 3.0 Standard) explicitly for drafting cheaply. Promote to Pro/Ultra only after a take survives review.
Using 4:3 prompts on Kling 3.0. Kling 3.0 ships 16:9, 9:16, and 1:1. For 4:3, SeeDance 2.0 is the right model.
Comparing Kling 2.6 prices to Kling 3.0. Kling 2.6 prices at $0.03 per second on Unifically; 3.0 starts at $0.05–0.063 per second. They are different products at different tiers.

Frequently asked questions

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

SeeDance 2.0 wins on multimodal omni-reference — nine images, three video clips, three audio clips per call, addressable by name in the prompt. Kling 3.0 wins on resolution (true 4K via Ultra), per-second cost ($0.05–0.063 starting), and explicit multi-language lip-sync across five languages.

Which is cheaper, SeeDance 2.0 or Kling 3.0?

Kling 3.0 is cheaper per second across every tier. Kling 3.0 starts at $0.05–0.063 per second on Unifically; SeeDance 2.0 lists at $0.08 per second. For a 10-second clip, that is roughly $0.50–0.63 on Kling 3.0 vs $0.80 on SeeDance 2.0.

Does Kling 3.0 support 4K?

Yes, on the Ultra tier. SeeDance 2.0 caps at 720p on Unifically. If your delivery target is 4K and you do not want a separate upscale step, Kling 3.0 Ultra is the right pick.

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 you want 4K, pick Kling 3.0 Ultra with Elements 3.0. If the references span multiple images plus a source clip plus a target audio mood, pick SeeDance 2.0 Pro — the omni-reference surface is the differentiator.

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 — alternative video APIs

SeeDance 2.0 vs Kling 3.0: API Comparison and Pricing (2026)

SeeDance 2.0 vs Kling 3.0 at a glance

What SeeDance 2.0 is

What Kling 3.0 is