Seedance vs Kling: specs, cost per usable clip and how to test them yourself

Single-clip comparisons can't tell you which model wastes less of your money. This page gives you the documented specs, the price of one attempt, the maths for cost per usable clip, and a 12-prompt sheet that finds your own keep rate on both models. Every price and spec comes from the vendor's page, read on 9 November 2026.

What is the difference between Seedance 2.0 and Kling 3.0?

Seedance 2.0 (ByteDance) and Kling 3.0 (Kuaishou) both turn text, images and references into clips with native audio, and they differ mainly in length, controls and price.

Sources: ByteDance Seed, Kling user guide, Kling Omni blog, Kling Omni guide, fal.

Runway lists Seedance 2.0 at 1080p and 4K as well. The Seed paper states native 480p and 720p, and neither source says how the higher resolutions are produced.

How much does a Seedance 2.0 or Kling 3.0 clip cost?

On Runway's API a 10-second clip costs $3.00 with Seedance 2.0 at 720p and between $0.90 and $1.70 with Kling 3.0, as of 9 November 2026.

Runway sells credits at $0.01 each. These are list prices for one attempt.

fal shows the same order: $1.68 for 10 seconds of Kling 3.0 Pro with audio and $3.03 for Seedance 2.0. In Kling's own app a 10-second 1080p clip with audio is 120 credits at 12 per second. That is $1.60 at the Standard renewal rate of 660 credits for $8.80 a month. For every platform's rates, see Kling AI pricing and Seedance pricing.

Which is cheaper per usable clip, Seedance or Kling?

Cost per usable clip is the price of one attempt divided by the share of attempts you keep, and Seedance 2.0 needs to be kept 1.8 times as often as Kling 3.0 Pro to break even.

The keep rates below are assumptions for the sum, not measured results.

Break-even is $3.00 divided by $1.70, or 1.76. If Kling gives you one keeper in four tries, Seedance must give you about one in 2.3 to cost the same per keeper. Kling's credits policy says credits for a failed generation are refunded. A clip that renders but looks wrong is not a failed generation, so it still costs you.

How do you test Seedance vs Kling on the same prompts?

Run the same prompts through both models three times each, then score every clip, including the bad ones.

fal's comparison shows four same-prompt pairs, eight outputs in all, with no failure rates or sample sizes. A fair test needs more runs than that.

1. Pick 12 prompts: 6 text-to-video and 6 image-to-video from the same source images. Include one hard case each for hands, text on screen, a second character and fast camera motion.
2. Use the same length, aspect ratio and resolution. Turn audio on for both.
3. Run each prompt 3 times per model. That is 72 clips. At the Runway rates above and 10 seconds each, the run costs $61.20 for Kling 3.0 Pro with audio (36 x $1.70) and $108.00 for Seedance 2.0 at 720p (36 x $3.00).
4. Score each clip yes or no on: motion matches the prompt, the subject keeps the same face and outfit, audio fits the scene, no visible artifacts. A keeper needs four yeses.
5. Keep a failures column. The keep rate is keepers divided by 36 per model. Put it in the table above in place of the assumptions.

Kling offers automatic and custom multi-shot, and fal's API takes a structured prompt and duration per shot. Seedance takes shot descriptions in the text prompt. Use each model's own format, or the test favours one of them. Draft your own variants with the AI video prompt generator and price the full run with the AI video cost calculator.

Use these 12 prompts, then swap in your own subject:

Score each clip in a table like this and total the last column per model:

Seedance or Kling: which should you choose?

Choose Seedance 2.0 if you must feed many reference files, and Kling 3.0 if price per attempt, 1080p output or switchable audio matter more.

• Seedance 2.0 documents up to 9 images, 3 videos and 3 audio clips as references. Kling 3.0 Omni takes up to 7 images/elements, or 4 plus one video (Omni guide).
• Kling 3.0 costs less per attempt on Runway and fal, and offers 1080p output natively.
• Kling lets you turn audio off, which lowers the price. Seedance on fal includes audio by default at the same price.
• For motion copied from a source video, see Kling motion control.
• For an image-to-video workflow, see Kling AI image to video.

What about Kling 4.0 and Seedance 2.5?

Kling 4.0 and Seedance 2.5 are newer versions with their own prices, and this page compares the 3.0 and 2.0 pair.

Runway lists Kling 4.0 at 15.7 credits per second at 720p list, with a 20% discount through 30 November 2026, and Seedance 2.5 at 30 credits per second at 720p plus 15 for each second of reference video. ByteDance's Seedance 2.5 tutorial on BytePlus doubles the clip length to 4 to 30 seconds, caps output at 1080p and raises references to 30 images, 10 videos and 10 audio files. For what 2.5 costs on every platform, see Seedance pricing.

Can you use real people's faces or characters?

Use faces you own or have written permission for, and characters you hold the rights to. The character photo checker vets a reference photo before you spend credits.