Gemini Omni Flash Preview vs Grok Imagine Video 1.5
Preferred for image to video: Too close to call · Lowest entry price: Gemini Omni Flash Preview · Highest resolution: Gemini Omni Flash Preview. Quality scores are blind human-preference votes; specs and prices come from each lab’s listings.
GoogleGemini Omni Flash Preview
- Arena1,513
- From$0.034/s
- Max length—
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.
- Preferred for image to videoToo close to callGemini Omni Flash Preview 1,465 (#6) · Grok Imagine Video 1.5 1,456 (#8) — blind human votes
- Lowest entry priceGemini Omni Flash PreviewGemini Omni Flash Preview from $0.034/s (360p) · Grok Imagine Video 1.5 from $0.08/s (480p)
- Highest resolutionGemini Omni Flash PreviewGemini Omni Flash Preview: 4K · Grok Imagine Video 1.5: 1080p
- NewestGemini Omni Flash PreviewGemini Omni Flash Preview Jun 30, 2026 · Grok Imagine Video 1.5 May 30, 2026
- Widest inputsSame inputsGemini Omni Flash Preview: Text prompts, Reference images, Video · Grok Imagine Video 1.5: Text prompts, Reference images, Audio
- Native audioBoth generate soundGenerates an audio track with the video: Gemini Omni Flash Preview yes · Grok Imagine Video 1.5 yes
- Image to videoBoth animate imagesStarts from an uploaded image: Gemini Omni Flash Preview yes · Grok Imagine Video 1.5 yes
- Self-hostingNo open weightsBoth are available only through APIs and apps
- Most API hostsSame reachGemini Omni Flash Preview: 2 · Grok Imagine Video 1.5: 2
Every spec in one table
Dashes mean the data is not published.
| Specification | Gemini Omni Flash PreviewGoogle | Grok Imagine Video 1.5xAI |
|---|---|---|
| Quality (blind human votes) | ||
| Text to video arenaElo-style score · higher is better | 1,513 ±9#2 of 48 · 26,576 votes | — |
| Image to video arenaElo-style score · higher is better | 1,465 ±6#6 of 48 · 87,155 votes (best) | 1,456 ±4#8 of 48 · 137,459 votes |
| Price | ||
| Starting price | $0.034/s 360p (best) | $0.08/s 480p |
| Top price | $0.304/s 4K | $0.25/s 1080p |
| 10-second clip | $0.338at the starting rate (best) | $0.80at the starting rate |
| Extra charges | — | $0.01 per input image |
| How it is billed | Billed per token; per-second figures computed from Google’s listed tokens per second. | Per second |
| Output | ||
| Produces | Video with sound | Video with sound |
| Resolutions | 360p · 720p · 1080p · 4K | 480p · 720p · 1080p |
| Highest resolution | 4K (best) | 1080p |
| Clip length | — | 1–15 s |
| Longest clip | — | 15 s |
| Sound | Always generated | Always generated |
| Frame control | — | First and last frame |
| Inputs | ||
| Text prompts | Yes | Yes |
| Start image (image to video) | Yes | Yes |
| Video input | Yes | No |
| Audio input | No | Yes |
| References | — | Up to 14 reference images and 3 voice references |
| Access | ||
| Weights | Proprietary | Proprietary |
| API model ID | gemini-omni-flash-preview | grok-imagine-video-1.5 |
| API hosts | 2 | 2 |
| Released | Jun 30, 2026 | May 30, 2026 |
Which should you choose?
Which is better, Gemini Omni Flash Preview or Grok Imagine Video 1.5?
For image to video, voters rate them about the same (Gemini Omni Flash Preview 1,465 (#6) · Grok Imagine Video 1.5 1,456 (#8)). Arena scores come from blind, side-by-side human votes on the same prompts; when the gap is inside both models’ error margins we call it a tie. Test your own prompts before you commit.
Which is cheaper?
Gemini Omni Flash Preview costs from $0.034/s (360p), up to $0.304/s (4K); 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: Gemini Omni Flash Preview $0.338, 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?
Gemini Omni Flash Preview: length not published, 360p / 720p / 1080p / 4K; Grok Imagine Video 1.5: 1–15 s, 480p / 720p / 1080p.
What is the difference between Gemini Omni Flash Preview and Grok Imagine Video 1.5?
Gemini Omni Flash Preview is a video model from Google (Jun 30, 2026), taking text prompts, reference images 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?
Gemini Omni Flash Preview Jun 30, 2026; Grok Imagine Video 1.5 May 30, 2026.
Which generates video with sound?
Generates an audio track with the video: Gemini Omni Flash Preview 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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