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Model comparison
Seedance 2.5 vs LTX-2.5 Fast
Compare Seedance 2.5 and LTX-2.5 Fast 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) |
|---|---|---|
| LTX-2.5 FastLightricks | Lightricks | No reviewed rate |
| Seedance 2.5ByteDance Seed | ByteDance Seed | No reviewed rate |
Quick take
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.
LTX-2.5 Fast
LTX's speed-optimized video model for text, image, or audio input, native sound, automatic duration, and output up to 4K.
Best for
- Fast video experiments with native audio
- Portrait or landscape output up to 4K
- Prompt-driven multi-shot clips with automatic duration
Watch out for
Fast does not mean every 4K job finishes instantly. Price grows from $0.09 to $0.30 per generated second, and permitted duration depends on resolution and frame rate.
Compare the published facts
Seedance 2.5 vs LTX-2.5 Fast
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 | Seedance 2.5 | LTX-2.5 Fast |
|---|---|---|
| Generation priceCurrent list price per generated second or the provider's closest billing unit. | $0.0214 / 1K video tokens on fal | $0.09/s 720p to $0.30/s 4K |
| Clip durationDocumented duration choices or maximum clip length. | 4–30 seconds; official extensions supported | 6–20 seconds depending on resolution and frame rate |
| Maximum outputHighest provider-documented output resolution, with relevant constraints. | 720p text route; fal image route also lists 1080p | 4K |
| Native audioWhether the endpoint generates synchronized audio with video. | Yes, jointly generated with video | Yes; can also generate silent video |
| Input modesSupported text, image, video, reference, or motion inputs. | Text, image, video, audio, and reference assets | Text, image, or audio; optional last frame and camera motion |
| Generation timeOnly shown when a provider publishes a range; not a Cody benchmark. | Not published | Fast tier; exact time 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.
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
LTX-2.5 Fast
The reviewed public LTX model and pricing guides do not state one complete endpoint-specific retention or training-use commitment. Verify current account and enterprise terms for sensitive media.
Provider and API links
Frequently asked questions
Seedance 2.5 vs LTX-2.5 Fast FAQ
What is the main difference between Seedance 2.5 and LTX-2.5 Fast?
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. LTX-2.5 Fast: LTX's speed-optimized video model for text, image, or audio input, native sound, automatic duration, and output up to 4K.
Should I choose Seedance 2.5 or LTX-2.5 Fast?
Consider Seedance 2.5 when your priority is Sound-on social and advertising videos. Consider LTX-2.5 Fast when your priority is Fast video experiments with native audio. Test both with your own data and provider route before committing.
Is this Seedance 2.5 vs LTX-2.5 Fast 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.