compare guide
Seedance 2.5 vs Seedance 2.0: Which ByteDance Video Model Should You Pick?
Side-by-side comparison of Seedance 2.5 and Seedance 2.0 on Kansova: pricing per resolution, max duration, reference inputs, output tiers, and which workflow each model actually fits.
TL;DR
Pick Seedance 2.5 for clips longer than 15 seconds, runs that need more than 12 reference files, or any 1080p output. Pick Seedance 2.0 for 5-15 second finished campaign shots when the per-second credit cost matters.
Who this is for
- Creators choosing between the two ByteDance video models available on Kansova today.
- Marketers deciding whether a long-form 2.5 spend beats stacking multiple 2.0 clips in post.
- Teams migrating from Seedance 2.0 to 2.5 and weighing the credit delta against the new ceiling.
- Agencies pricing short-form deliverables before committing to a per-second model.
Best for / Not best for
Best for
- Model selection before spending credits
- Long-form vs short-form planning
- Credit budgeting per resolution tier
- Migration decision from 2.0 to 2.5
Not best for
- Comparing audio editing or post-production tools
- Frame-level benchmark scores across providers
- Models not currently routed on Kansova
- Free-tier evaluation beyond the 100-credit signup bonus
Parameters
| Parameter | Supported value | Notes |
|---|---|---|
| Max duration | Up to 30 seconds, single pass | Double the Seedance 2.0 ceiling, per ByteDance's announcement. |
| Reference inputs | Up to 50 files | Images, video, and audio references in one generation. |
| Architecture | Built on Seedance 2.0 | Same unified audio-video joint generation system, extended for long-form. |
| Kansova availability | Available | Live in the video studio alongside Seedance 2.0, Mini, Minimax H3, Gemini Omni, Wan 3.0 and FLUX 3 Video. |
Pricing
Kansova bills generations in credits. Basic is $9.90/month for 300 credits; Pro is $19/month for 750 credits; Studio is $39/month for 1,700 credits.
| Generation | Kansova credits | Cost methodology |
|---|---|---|
| 5-second clip, 480p | 100 credits (2.5) / 75 credits (2.0) | About $0.95 (2.5) / $0.65 (2.0) provider cost |
| 5-second clip, 720p | 225 credits (2.5) / 150 credits (2.0) | About $2.10 (2.5) / $1.40 (2.0) provider cost |
| 5-second clip, 1080p | 250 credits (2.5) - not available on 2.0 | About $2.30 (2.5) provider cost |
| 10-second clip, 720p | 450 credits (2.5) / 300 credits (2.0) | Most common reference run on Kansova |
| Per requested second, 480p | 20 credits (2.5) / 15 credits (2.0) | Shown before generation |
| Per requested second, 720p | 45 credits (2.5) / 30 credits (2.0) | Shown before generation |
| Per requested second, 1080p | 50 credits (2.5) - not available on 2.0 | Shown before generation |
Comparison
| Dimension | Seedance 2.5 | Seedance 2.0 |
|---|---|---|
| Max single-pass duration | 30 seconds | 15 seconds |
| Output resolutions | 480p / 720p / 1080p | 480p / 720p |
| Reference inputs | Up to 50 files (image / video / audio) | Up to 12 files |
| Credit cost (480p) | 20 credits/sec | 15 credits/sec |
| Credit cost (720p) | 45 credits/sec | 30 credits/sec |
| Credit cost (1080p) | 50 credits/sec | Not available |
| Reference cost band | About $0.19-$0.46/sec | About $0.13-$0.28/sec |
| Architecture | Built on Seedance 2.0; extended for long-form | Unified audio-video joint, single pass |
| Best workflow | Long-form storytelling, multi-reference scenes | Finished campaign clips, single-shot reveals |
| Status on Kansova | Available | Available |
Prompt examples
- 01
A glass skincare bottle rises through clear blue water, slow push-in, suspended droplets, premium studio highlights, 9:16. - 02
Slow forward movement toward a modern concrete villa at blue hour, warm interior lights reflected in the pool. - 03
A white sneaker rotates on a matte plinth, soft directional light moves across the material, clean ecommerce campaign. - 04
Macro shot of a watch mechanism starting to move, shallow depth of field, restrained luxury advertising style. - 05
A folded paper sculpture opens into a geometric flower, fixed camera, soft shadows, minimal design film.
Known limitations
- Seedance 2.5 is more expensive per second at every resolution; for short reveals the extra spend buys features the clip does not use.
- Reference API cost bands are planning figures; actual provider billing may shift independently of Kansova credit pricing.
- Long-form runs on 2.5 increase the chance of drift across scenes; review output before commercial use.
- Seedance 2.0 remains the right choice when you plan to cut a final piece from multiple 5-15 second takes rather than render a single 30-second pass.
Alternatives
Seedance 2.5 guide
Full parameters, prompts, and limitations for 2.5.
View alternativeSeedance 2.0 guide
Full parameters, prompts, and limitations for 2.0.
View alternativeSeedance 2 vs Mini
Compare the two long-standing Kansova video options.
View alternativeAI Video Generator
Open the studio and switch models between runs.
View alternativeFrequently asked questions
Should I use Seedance 2.5 or Seedance 2.0?
Use Seedance 2.5 when your clip needs more than 15 seconds, more than 12 reference files, or 1080p output. Use Seedance 2.0 when you are producing finished 5-15 second campaign shots and a lower per-second cost matters.
How much more expensive is Seedance 2.5 than 2.0 per second?
At 480p, 2.5 is 20 credits/sec vs 2.0's 15 credits/sec, about 33% more. At 720p, 2.5 is 45 credits/sec vs 2.0's 30 credits/sec, about 50% more. The 1080p tier is 2.5-only at 50 credits/sec.
Is Seedance 2.5 better quality than 2.0?
Both share ByteDance's unified audio-video joint generation architecture, so per-frame visual quality is comparable. The 2.5 upgrade is duration ceiling (15s to 30s), reference capacity (12 to 50 files), and 1080p availability, not raw frame fidelity.
Can I keep using Seedance 2.0 on Kansova?
Yes. Kansova continues to expose Seedance 2.0 and Seedance 2.0 Mini alongside Seedance 2.5. There is no migration deadline and no plan to retire 2.0.
Which one fits a 5-second product reveal?
Seedance 2.0 at 720p. A 5-second 720p clip on 2.0 is 150 credits; the same clip on 2.5 is 225 credits. The extra spend on 2.5 buys nothing for a short reveal since 2.5's advantages (duration, reference count, 1080p) are not exercised.
Which one fits a 20-second short film?
Seedance 2.5 at 720p. A 20-second 720p clip on 2.5 is 900 credits; the same request is impossible on 2.0 because 2.0 caps single-pass runs at 15 seconds.
How do reference inputs differ between 2.5 and 2.0?
Seedance 2.5 accepts up to 50 reference files covering image, video, and audio; Seedance 2.0 caps at 12 reference files. For single-shot workflows the difference is invisible; it matters when you stage multi-character or multi-angle scenes.
Does Seedance 2.5 produce audio?
Yes, through the same unified audio-video joint generation pipeline as 2.0. Both models can render synced audio when the chosen provider mode supports it; check the studio output panel after generation.
Last updated
2026-09-05
Sources and methodology
Parameters were checked against the provider API material supplied to Kansova and the live Kansova controls on 2026-07-06. Reference API costs are planning figures from the supplied provider catalog, not a separate charge billed by Kansova.
- EvoLink API documentation index
Provider documentation used to verify Seedance modes and parameters.
- Kansova product facts
Canonical list of supported workflows and current limitations.
- Kansova pricing
Current subscription and monthly credit allowances.