Kling vs Seedance for Story Videos: Which AI Video Model to Use

For story videos with dialogue, Seedance is usually the better model: it hears the voice recording and performs the lines itself, voice and mouth together, and it makes clips up to 30 seconds. Kling is a strong pick for motion-heavy single clips (action, sports, physical comedy) and quick cuts, but it does not perform to a recording you supply, so dialogue in a fixed voice needs a separate lip-sync pass in most pipelines. Paintbrush runs Seedance 2.5 for every project in every style, photoreal included, because its Seedance setup accepts photoreal character references (some Seedance providers reject them as possible real-person likenesses). As of October 2026, Paintbrush scene video costs 30.3 credits per second in every style. Pick Kling directly when you want one striking action clip rather than a spoken, multi-shot story.

Both models are excellent. The right one depends on what your project is: a single spectacular shot or a story where characters talk. This comparison covers faces, stylized rendering, dialogue, clip length, cost per finished minute, and the stray audio both models produce.

What is the difference between Kling and Seedance?

Kling is made by Kuaishou. Seedance is made by ByteDance. Both turn reference images and a text description into a short video clip with sound. For story work, the differences that matter are how each one handles a voice recording, how long a single clip can run, and which reference images a given provider accepts.

Paintbrush rates are as of October 2026. Kling's own prices depend on the plan and platform you use it on.

Which is better for realistic people and faces?

Both models can hold a photoreal face from reference images. The practical difference is whether the reference gets through at all. A story with consistent characters needs reference images: the same face, hair, and outfit sent with every shot. In a realistic project those references are photoreal people. Kling accepts them. Some Seedance providers treat photoreal people in reference images as possible real-person likenesses and reject them, even when you invented the character. If you use Seedance directly for a photoreal cast, check that your provider accepts those references before you plan a film around them.

Paintbrush's Seedance setup accepts photoreal character references, so Realistic-style projects run on Seedance 2.5 like every other style. Each character's front, face close-up, side, and back views go to the model with the shot, along with the setting. The model gets identity from the images, not from a text description, which is what keeps a face stable across a whole film. If you want a photoreal character based on your own photo, a Realistic project is the place to build it.

More on why references beat descriptions: best AI video generator for consistent characters.

Which is better for anime, cartoon, and other stylized looks?

Both draw stylized looks well, and Seedance is the better fit for stylized stories. Stylized stories are often dialogue-heavy (anime drama, kids' stories, cartoon sketches), and what matters most there is what Seedance brings: clips up to 30 seconds and lines performed from the actual recording, with the speaker's mouth moving to them.

This is not a verdict on Kling's drawing skills. Paintbrush uses Seedance for stylized projects for the same reason it uses it for realistic ones: how it handles speech and longer takes. The project style applies to every character, setting, and shot, so the whole film stays in one look. Paintbrush offers these presets: Anime, Realistic, Cartoon, Pixel Art, Watercolor, Oil Painting, Sketch, Digital Art, Fantasy Art, and Minimalist, or a custom style you write yourself. Every one of them runs on Seedance 2.5.

For a full walkthrough of the anime case, see the AI anime video generator guide.

How do Kling and Seedance handle dialogue and lip sync?

This is the biggest working difference between the two models.

Kling: acts the lines, then needs a lip-sync pass

Kling makes its own sound, but it does not take a voice recording you supply and perform to it. That matters in a story, where each character should keep the same voice in every shot and the whole scene is usually recorded first. In most pipelines that use Kling for dialogue, the model is told which lines are spoken and acts them on camera, and a separate lip-sync tool (Kling's own lip-sync feature, or a service such as Sync) then matches the mouth to the recording. That works, but it is an extra step per clip, an extra cost, and with two people in frame you have to make sure each line lands on the right mouth.

Seedance: hears the recording

Seedance receives the recording for the shot and performs the on-camera lines itself, voice and mouth together. The words and their timing follow the recording; the voicing and mouth movement come from the same generation, so there is no separate lip-sync step. That suits long spoken takes and scenes with several speakers.

In Paintbrush, the whole chapter is performed first as one take with ElevenLabs voices, so every voice hears the others, then cut into shots. For each shot, Seedance hears its slice of that recording and performs the on-camera lines. There is no lip-sync charge, for any style or number of speakers. Narration and offscreen lines move no mouth. See how to make AI characters talk and how to write dialogue for AI video.

How do clip length and pacing compare?

Kling makes clips from 3 to 15 seconds and Seedance from 4 to 30 seconds. In Paintbrush you do not set the length. Each shot gets the shortest whole-second clip that holds its slice of the chapter audio, then it is trimmed to fit. A 2-second reaction is generated as a 4-second clip and cut down.

What this means for pacing:

• Very short cuts favor Kling slightly. Its 3-second minimum wastes a little less on a quick reaction shot when you pay by the second.
• Long takes favor Seedance. A 25-second monologue, a walk-and-talk, or a long silent beat fits in one Seedance clip. With Kling, anything past 15 seconds becomes two shots.
• Continuity is a workflow question, not a model question. In Paintbrush, a continuous shot opens on the previous shot's real last frame, so the camera appears to keep rolling. A cut to a new angle is drawn as a still keyframe from the earlier shot's last frame first, then animated, which keeps positions, clothes, and light.

The cut director usually keeps dialogue shots short, because films cut on emotion, not on clip limits. The 30-second ceiling is there for the moments that should not cut.

Which is cheaper per finished minute?

It depends on where you run them, and for dialogue the per-second price is not the whole story. Both models are sold on many platforms at prices that change often. What a per-second rate hides is the lip-sync pass: a Kling dialogue clip in a voiced story usually pays for one on top of the video, while a Seedance clip performs the lines in the same generation.

In Paintbrush, every project runs on Seedance 2.5, so the price is the same in every style. Per-clip formula as of October 2026: 30.3 credits x seconds, plus 12.5 credits for voice cleanup if nobody speaks on camera in the clip, plus 8 for a new-angle keyframe. There is no lip-sync charge.

Single shots, before any keyframe:

On-camera dialogue shots are slightly cheaper than silent or narrated ones because they keep the model's own soundtrack and skip voice cleanup.

A worked one-minute example: three characters, two settings, twelve 5-second shots, half of them with on-camera dialogue, about 8 new-angle keyframes, and about 900 characters of speech.

• Assets: 3 characters at 36 credits plus 2 settings at 8 credits = 124 credits.
• Video: 60 seconds at 30.3 = 1,818 credits.
• Voice cleanup: 6 clips without on-camera dialogue at 12.5 = 75 credits.
• Keyframes and speech: 64 credits for keyframes, about 7 for speech.

Total: about 2,090 credits, or roughly $41 to $46 depending on the credit pack, the same in every style. Plan 1.5 to 2 times that for retakes. Failed generations are refunded automatically, but retakes of successful shots cost again. Full breakdown: how much AI video costs per minute.

Do Kling and Seedance add voices you did not ask for?

Yes, both do. Video models generate their own audio, and that audio often includes invented voices: crowd chatter, mumbling, sometimes a whole line nobody wrote. In a story with a recorded script, that is a problem. A stray voice under your dialogue sounds like a mistake, because it is one.

Paintbrush handles it by what the clip contains. A clip nobody speaks in on camera (silent, or narration and offscreen lines only) is cleaned: the generated voices are removed, the ambience and sound effects are kept, and the approved narration, if any, is laid back exactly. Cleanup costs 12.5 credits per started 30 seconds of clip. If cleanup fails, the clip gets only the approved speech and the cleanup charge is refunded. A clip with on-camera dialogue keeps the soundtrack Seedance generated, because the model voiced those lines itself and the mouths follow its voicing.

Should you use Kling or Seedance directly instead?

For single clips, often yes. Kling has its own app from Kuaishou, and ByteDance offers Seedance in Dreamina and CapCut. Those are great places to try a shot idea, make a one-off clip, or use features of each model that a story tool does not expose.

The trade-off appears when a story runs past a few shots. Then the work is less about one clip and more about everything around it: keeping each character's face and outfit the same, keeping rooms consistent, recording dialogue as one performance, cutting it into shots that respect screen direction, putting each line on the right face, and removing invented voices. Paintbrush does that around Seedance 2.5. For a head-to-head on the Kling side, see Paintbrush vs Kling.

Which should you pick for your story?

• Pick Kling for motion-heavy single clips (action, sports, stunts, physical comedy), very quick cuts, and pipelines that already have a lip-sync step for dialogue.
• Pick Seedance for spoken stories in any style, photoreal or stylized, scenes with several speakers, and long takes up to 30 seconds. For a photoreal cast, use a provider that accepts photoreal reference people.

In Paintbrush you do not pick a model: every project, in every style, runs on Seedance 2.5. Choose the look your story needs and the model stays the same.

FAQ

Is Kling or Seedance better for anime?

Seedance, for anime with dialogue. It makes clips up to 30 seconds and performs the on-screen speaker's lines from the recording, voice and mouth together, which suits dialogue-heavy anime. Kling is a fine choice for a single anime action clip. In Paintbrush, the Anime style runs on Seedance 2.5 like every other style.

Is Kling or Seedance better for realistic people?

Both can hold a photoreal face from references. Kling accepts photoreal reference people; some Seedance providers reject them as possible real-person likenesses. Paintbrush's Seedance setup accepts photoreal character references, so Realistic projects run on Seedance 2.5 and get native speech too.

Which is cheaper, Kling or Seedance?

It depends on the platform and plan. For dialogue, count the lip-sync pass a Kling clip usually needs; a Seedance clip performs the lines itself. In Paintbrush as of October 2026, video costs 30.3 credits per second in every style, with no lip-sync charge, and a one-minute example costs about 2,090 credits.

Can I choose the video model in Paintbrush?

No. Every project uses Seedance 2.5 for scene video, whatever its style. There is no Standard/Pro choice.

Does Paintbrush use Veo?

No. Paintbrush runs Seedance 2.5 for scene video and uses Kling O3 only to edit an existing clip. It does not run Veo, Sora, or Runway models.