Model comparison
Compare Grok Imagine Video 1.5 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
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.
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) |
|---|---|---|
| Grok Imagine Video 1.5SpaceXAI | SpaceXAI | No reviewed rate |
| Seedance 2.5ByteDance Seed | ByteDance Seed | No reviewed rate |
Quick take
SpaceXAI's current video model for turning text, images, or references into short clips with optional generated speech and sound.
Reference-to-video output is capped at 720p, generated download URLs are temporary, and complex requests can take several minutes to complete.
ByteDance's current audiovisual model for coherent clips up to 30 seconds, with native sound, long-form storytelling, rich references, and targeted editing.
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
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 | Grok Imagine Video 1.5 | Seedance 2.5 |
|---|---|---|
| Generation priceCurrent list price per generated second or the provider's closest billing unit. | $0.08 480p · $0.14 720p · $0.25 1080p / sec | $0.0214 / 1K video tokens on fal |
| Clip durationDocumented duration choices or maximum clip length. | 1–15 seconds | 4–30 seconds; official extensions supported |
| Maximum outputHighest provider-documented output resolution, with relevant constraints. | 1080p; references capped at 720p | 720p text route; fal image route also lists 1080p |
| Native audioWhether the endpoint generates synchronized audio with video. | Yes; can be disabled | Yes, jointly generated with video |
| Input modesSupported text, image, video, reference, or motion inputs. | Text, image, or references to video | Text, image, video, audio, and reference assets |
| Generation timeOnly shown when a provider publishes a range; not a Cody benchmark. | Typically up to several minutes | Not published |
How to choose
Start with the job you need to complete, then validate cost, access, and policy details on your exact provider route.
SpaceXAI says API inputs and outputs are not used for training without explicit permission. Default encrypted retention is 30 days; team-level zero data retention is available with feature tradeoffs.
Provider and API links
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
Grok Imagine Video 1.5: SpaceXAI's current video model for turning text, images, or references into short clips with optional generated speech and sound. 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.
Consider Grok Imagine Video 1.5 when your priority is Short sound-on marketing clips. 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.
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.
