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Model comparison
Veo 3.1 Fast vs Seedance 2.5
Compare Veo 3.1 Fast and Seedance 2.5 using the same provider-sourced video generation rubric. No mystery score and no invented benchmark ranking.
Facts checked September 4, 2026
Estimate your cost
Set your usage. Your estimate updates as you type.
Example: 8-second, 720p clips with audio. Models that do not support these settings will not receive an estimate.
How this estimate works
Estimates exclude taxes, tools, cache storage/writes, free allowances and custom discounts. Image estimates cover output only, not prompt or reference-image charges. Quality modes differ by model. Unlisted settings are not treated as free.
| Model | Access | Estimated total (USD) |
|---|---|---|
| Veo 3.1 FastGoogle | $0.80 | |
| Seedance 2.5ByteDance Seed | ByteDance Seed | No reviewed rate |
Quick take
Veo 3.1 Fast
Google's lower-cost Veo 3.1 variant for quickly creating short video clips with native audio and output options up to 4K.
Best for
- Rapid ad and social-video variations
- Short clips that need generated audio
- Teams seeking a lower-cost route into Veo
Watch out for
Fast does not mean instant: Google says video requests can still take from seconds to several minutes at peak times. Generated files are retained for two days, and feature combinations vary by endpoint.
Seedance 2.5
ByteDance's current audiovisual model for coherent clips up to 30 seconds, with native sound, long-form storytelling, rich references, and targeted editing.
Best for
- Sound-on social and advertising videos
- Longer AI clips with multiple shots
- Reference-heavy audiovisual production
Watch out for
fal bills by a video-token formula tied to frame size and duration, so aspect ratio changes the cost. Confirm which route supports the resolution and reference mix you need.
Compare the published facts
Veo 3.1 Fast vs Seedance 2.5
Values use each provider's own published units and limits. A blank means the provider did not publish a directly comparable value in the sources reviewed.
| Video generation | Veo 3.1 Fast | Seedance 2.5 |
|---|---|---|
| Generation priceCurrent list price per generated second or the provider's closest billing unit. | $0.10 720p · $0.12 1080p · $0.30 4K / sec | $0.0214 / 1K video tokens on fal |
| Clip durationDocumented duration choices or maximum clip length. | 4, 6, or 8 seconds | 4–30 seconds; official extensions supported |
| Maximum outputHighest provider-documented output resolution, with relevant constraints. | 4K at 8 seconds | 720p text route; fal image route also lists 1080p |
| Native audioWhether the endpoint generates synchronized audio with video. | Yes, always on | Yes, jointly generated with video |
| Input modesSupported text, image, video, reference, or motion inputs. | Text, image, or video to video | Text, image, video, audio, and reference assets |
| Generation timeOnly shown when a provider publishes a range; not a Cody benchmark. | 11 seconds–6 minutes at peak | Not published |
How to choose
Compare the job, not the hype.
Start with the job you need to complete, then validate cost, access, and policy details on your exact provider route.
Veo 3.1 Fast
Google's paid Gemini API terms say prompts and responses are not used to improve its products. Generated Veo videos are stored on the server for two days and must be downloaded to keep them.
Provider and API links
Seedance 2.5
fal stores request inputs and outputs by default. Its X-Fal-Store-IO: 0 request header prevents payload storage, but uploaded CDN files need separate lifecycle handling; other Seedance routes have their own terms.
Provider and API links
Frequently asked questions
Veo 3.1 Fast vs Seedance 2.5 FAQ
What is the main difference between Veo 3.1 Fast and Seedance 2.5?
Veo 3.1 Fast: Google's lower-cost Veo 3.1 variant for quickly creating short video clips with native audio and output options up to 4K. Seedance 2.5: ByteDance's current audiovisual model for coherent clips up to 30 seconds, with native sound, long-form storytelling, rich references, and targeted editing.
Should I choose Veo 3.1 Fast or Seedance 2.5?
Consider Veo 3.1 Fast when your priority is Rapid ad and social-video variations. Consider Seedance 2.5 when your priority is Sound-on social and advertising videos. Test both with your own data and provider route before committing.
Is this Veo 3.1 Fast vs Seedance 2.5 comparison based on Cody benchmarks?
No. This comparison aligns provider-published facts for the Video generation category. It does not claim a universal winner or combine incompatible third-party benchmark scores.