Which should you pick?
Grok Imagine Video is the cheaper job: 24-168 credits against 200-400 credits for Runway Gen-4.5. Those are the credits one complete generation costs, not a headline rate, so they are directly comparable even though the two models bill differently.
At their most expensive settings the gap widens: Runway Gen-4.5 tops out at 400 credits a job versus 168, driven by clip length.
Grok Imagine Video holds the stronger leaderboard position (#10 in text to video against #16 in text to video). Those are two different leaderboards unless the category matches — Versely ranks each capability separately.
Grok Imagine Video supports more aspect ratios (7: 16:9, 3:2, 4:3, 1:1, 3:4, 2:3, 9:16), giving it more format flexibility.
What a job costs
Grok Imagine Video
24-168 credits
It bills per second, at a rate that changes with output resolution, and the price moves with output resolution.
- SD4 credits
- HD/4K6 credits
Runway Gen-4.5
200-400 credits
It bills per second of output, and the price moves with clip length.
- Price40 credits
All figures are Versely credits. Your plan's credit allowance is on the pricing page.
Spec comparison
| Spec | Grok Imagine Video | Runway Gen-4.5 |
|---|---|---|
| Provider | Grok | Runway |
| Cost per job | 24-168 credits | 200-400 credits |
| Billing | per second, at a rate that changes with output resolution | per second of output |
| Max resolution | 1080p | — |
| Aspect ratios | 16:9, 3:2, 4:3, 1:1, 3:4, 2:3, 9:16 | 16:9, 9:16, 4:3, 3:4, 1:1, 21:9 |
| Durations | 6s, 10s, 15s, 20s, 30s | 5s, 10s |
| Frame rates | — | — |
| Qualities | 1080p, 480p, 720p | — |
| Requires starting image | No | No |
| Accepts video input | No | No |
| Reference images | — | — |
| Leaderboard | #10 in text to video | #16 in text to video |
| Released | Jul 27, 2025 | Nov 30, 2025 |
What each one does that the other doesn't
Only Grok Imagine Video
innovative, smart
Only Runway Gen-4.5
cinematic, camera control
Both list: text to video, image to video.
Leaderboard positions
Versely ranks each capability on its own leaderboard, so a position is only comparable between two models within the same row.
Grok Imagine Video
- Text to video#10
Runway Gen-4.5
- Text to video#16
- Image to video#23
More comparisons
Frequently asked questions
Which is cheaper, Grok Imagine Video or Runway Gen-4.5?+
Grok Imagine Video is cheaper per job: 24-168 credits against 200-400 credits for Runway Gen-4.5.
What can Grok Imagine Video do that Runway Gen-4.5 can't, or vice versa?+
Only Grok Imagine Video lists innovative, smart. Only Runway Gen-4.5 lists cinematic, camera control. Both list text to video, image to video.
How do Grok Imagine Video and Runway Gen-4.5 bill?+
Grok Imagine Video bills per second, at a rate that changes with output resolution, and its price moves with output resolution. Runway Gen-4.5 bills per second of output, and its price moves with clip length. Both are charged in Versely credits.
Which ranks higher, Grok Imagine Video or Runway Gen-4.5?+
Grok Imagine Video sits at #10 in text to video and Runway Gen-4.5 at #16 in text to video on Versely's live model rankings. Versely ranks each capability on its own leaderboard, so those positions are only a direct comparison when the category is the same.
How long a clip can Grok Imagine Video and Runway Gen-4.5 generate?+
Grok Imagine Video supports 6s, 10s, 15s, 20s, 30s; Runway Gen-4.5 supports 5s, 10s.
Try both inside Versely
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