Comparison · Video models
Kling 3.0 vs Seedance 2.0
Kling 3.0 or Seedance 2.0? Both do up to 15 s and up to 4K. They differ in audio, references, aspect ratios and per-second price. A data-based comparison.
Specs side by side
| Kling 3.0 | Seedance 2.0 | |
|---|---|---|
| Vendor | Kuaishou | ByteDance |
| Type | Video | Video |
| Modes | text-to-video image-to-video first-last-frame reference-to-video | text-to-video image-to-video first-last-frame reference-to-video |
| Released | 2026-02 | 2026-02 |
| Duration | 3-15 s | 4-15 s or auto (-1) |
| Resolutions | 720p, 1080p, 4K | 480p, 720p, 1080p, 4K |
| Aspect ratios | 16:9, 9:16, 1:1 | 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, adaptive |
| Reference images | up to 2 | up to 9 |
| Frames | first and last frame | first and last frame |
| Audio | native audio, on/off switch | native audio, on/off switch |
| Prompt length | up to 2,500 chars | up to 20,000 chars |
| Reference videos | - | up to 3 |
Price per unit and per clip
| Model | Variant | Rate | 5 s clip | 10 s clip |
|---|---|---|---|---|
| Kling 3.0 | 720p | $0.169 / s | $0.847 | $1.69 |
| 1080p | $0.218 / s | $1.09 | $2.18 | |
| 4K | $0.811 / s | $4.05 | $8.11 | |
| Seedance 2.0 | 480p | $0.157 / s | $0.784 | $1.57 |
| 720p | $0.338 / s | $1.69 | $3.38 | |
| 1080p | $0.842 / s | $4.21 | $8.41 | |
| 4K | $1.72 / s | $8.58 | $17.16 |
Prices exclude taxes and are charged from your prepaid USD balance. Kling 3.0: options such as audio or pro mode cost more - Studio and estimated_cost show the exact amount before you run. Failed generations cost nothing.
Kling 3.0 and Seedance 2.0 share the same frame: clips up to 15 seconds and output up to 4K. Kling is cheaper per second and adds dialogue with lip sync. Pick Seedance 2.0 when you work from references (including video and audio), want 480p drafts or need 21:9. In my own test Seedance 2.0 also produced the best camera move of the whole lineup.
Key differences
- Length. Kling 3.0 3-15 s, Seedance 2.0 4-15 s. In Seedance,
duration: -1lets the model choose. - Resolution. Both have 720p, 1080p and 4K. Seedance adds 480p.
- Audio. Seedance 2.0 generates speech, effects and music by default at no extra cost. In Kling you turn audio on yourself and pay a higher rate at 720p and 1080p.
- References. Kling: 2 images plus first and last frame. Seedance: up to 9 images, 3 clips and 3 audio tracks, real people allowed (with consent).
- Aspect ratios. Seedance has 7, including 21:9, 4:3 and
adaptive. Kling has 16:9, 9:16 and 1:1. - Prompt. Kling takes 2,500 characters, Seedance up to 20,000, though ByteDance recommends around 500.
When to pick Kling 3.0
- 1080p shots where cost per second matters.
- English dialogue with lip sync.
- 4K at a lower rate than Seedance.
- Silent B-roll under a voice-over, where Kling is cheapest.
When to pick Seedance 2.0
- A product ad from a few studio photos, or with a reference clip for motion.
- Shots that depend on a smooth camera push-in. In my test (Polish blog, promptowy.com) Seedance 2.0 scored 8.5/10 on the coffee-pour prompt, the best of ten models (ranking).
- Cheap 480p drafts before a higher-resolution render.
- 21:9 and 4:3 frames.
Cost in practice
At 720p Seedance 2.0 costs about 1.4 times as much per second as Kling with audio and about 2 times as much as silent Kling. At 1080p the gap grows to about 2.6x (with audio) and 3.9x (silent). At 4K Seedance is about 2.1 times pricier. On the other hand, Seedance at 480p is slightly cheaper than Kling's lowest tier, 720p silent. Extras: in Seedance, reference clips add their own seconds to the bill; in Kling, audio raises the 720p and 1080p rates (not 4K). Rates: from $0.169 per second and from $0.157 per second; the full list is on /pricing.
Both are weak at non-English speech: in the same test Seedance 2.0 garbled more than half of a Polish sentence, and Kling 3.0 Pro got 10 of 12 words wrong in a separate test. For Seedance variants see Seedance 2.0 vs 2.5.
FAQ
Kling 3.0 or Seedance 2.0: which is better?
For plain text-to-video shots Kling is cheaper and does lip-synced dialogue. Seedance 2.0 wins when you have reference material: product photos, a motion clip, a voice recording.
How much do 10 seconds at 1080p cost?
In Kling, 10 times the 1080p rate (higher with audio); in Seedance, 10 times its 1080p rate, which is several times higher. Studio shows the exact amount before you generate.
Which one is cheaper in 4K?
Kling 3.0. At 4K Seedance 2.0 costs about twice as much per second.
Does Seedance 2.0 always generate audio?
By default yes (generate_audio: true). You can switch it off, but the per-second rate stays the same.
Vendor examples
Kling 3.0
Seedance 2.0
Official examples from the model vendors, not our generations.