Seedance 2.0 Fast vs Grok Imagine Video 1.5
Lowest entry price: Seedance 2.0 Fast · Highest resolution: Grok Imagine Video 1.5 · Newest: Grok Imagine Video 1.5. Not enough arena votes yet for a quality score, so this is a spec comparison.
ByteDance SeedSeedance 2.0 Fast
- Arena—
- From$0.04/s
- Max length15 s
xAIGrok Imagine Video 1.5
- Arena1,456
- From$0.08/s
- Max length15 s
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Where they differ
Quality is the arena score from blind, side-by-side human votes. Price, length and resolution come from each lab’s own listings.
- Lowest entry priceSeedance 2.0 FastSeedance 2.0 Fast from $0.04/s (480p) · Grok Imagine Video 1.5 from $0.08/s (480p)
- Longest clipsSame maximum lengthSeedance 2.0 Fast: 4–15 s · Grok Imagine Video 1.5: 1–15 s
- Highest resolutionGrok Imagine Video 1.5Seedance 2.0 Fast: 720p · Grok Imagine Video 1.5: 1080p
- NewestGrok Imagine Video 1.5Seedance 2.0 Fast Apr 14, 2026 · Grok Imagine Video 1.5 May 30, 2026
- Widest inputsSeedance 2.0 FastSeedance 2.0 Fast: Text prompts, Reference images, Audio, Video · Grok Imagine Video 1.5: Text prompts, Reference images, Audio
- Native audioBoth generate soundGenerates an audio track with the video: Seedance 2.0 Fast yes · Grok Imagine Video 1.5 yes
- Image to videoBoth animate imagesStarts from an uploaded image: Seedance 2.0 Fast yes · Grok Imagine Video 1.5 yes
- Self-hostingNo open weightsBoth are available only through APIs and apps
- Most API hostsGrok Imagine Video 1.5Seedance 2.0 Fast: 1 · Grok Imagine Video 1.5: 2
Every spec in one table
Dashes mean the data is not published.
| Specification | Seedance 2.0 FastByteDance Seed | Grok Imagine Video 1.5xAI |
|---|---|---|
| Quality (blind human votes) | ||
| Image to video arenaElo-style score · higher is better | — | 1,456 ±4#8 of 48 · 137,459 votes |
| Price | ||
| Starting price | $0.04/s 480p (best) | $0.08/s 480p |
| Top price | — | $0.25/s 1080p |
| 10-second clip | $0.404at the starting rate (best) | $0.80at the starting rate |
| Extra charges | — | $0.01 per input image |
| How it is billed | Billed per video token. | Per second |
| Output | ||
| Produces | Video with sound | Video with sound |
| Resolutions | 480p · 720p | 480p · 720p · 1080p |
| Highest resolution | 720p | 1080p (best) |
| Clip length | 4–15 s | 1–15 s |
| Longest clip | 15 s | 15 s |
| Sound | Optional | Always generated |
| Frame control | First and last frame | First and last frame |
| Inputs | ||
| Text prompts | Yes | Yes |
| Start image (image to video) | Yes | Yes |
| Video input | Yes | No |
| Audio input | Yes | Yes |
| References | Image, video and audio | Up to 14 reference images and 3 voice references |
| Access | ||
| Weights | Proprietary | Proprietary |
| API model ID | — | grok-imagine-video-1.5 |
| API hosts | 1 | 2 (best) |
| Released | Apr 14, 2026 | May 30, 2026 |
Which should you choose?
Which is better, Seedance 2.0 Fast or Grok Imagine Video 1.5?
Neither model has enough arena votes for a reliable quality score yet, so this page compares specs only. Run the same three or four prompts through each and judge the results.
Which is cheaper?
Seedance 2.0 Fast costs from $0.04/s (480p); Grok Imagine Video 1.5 costs from $0.08/s (480p), up to $0.25/s (1080p). A 10-second clip at the lowest rate: Seedance 2.0 Fast $0.404, Grok Imagine Video 1.5 $0.80. Prices are list rates and change often; check the lab before budgeting.
How long can the videos be, and at what resolution?
Seedance 2.0 Fast: 4–15 s, 480p / 720p; Grok Imagine Video 1.5: 1–15 s, 480p / 720p / 1080p.
What is the difference between Seedance 2.0 Fast and Grok Imagine Video 1.5?
Seedance 2.0 Fast is a video model from ByteDance Seed (Apr 14, 2026), taking text prompts, reference images, audio and video and producing video with sound. Grok Imagine Video 1.5 is a video model from xAI (May 30, 2026), taking text prompts, reference images and audio and producing video with sound.
Which is newer?
Seedance 2.0 Fast Apr 14, 2026; Grok Imagine Video 1.5 May 30, 2026.
Which generates video with sound?
Generates an audio track with the video: Seedance 2.0 Fast yes; Grok Imagine Video 1.5 yes.
Can I run any of these on my own hardware?
No open weights. Both are available only through APIs and apps.
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