video model comparison
Gen-4.5 vs Grok Imagine Video 1.5
Gen-4.5 and Grok Imagine Video 1.5 are both current video models, from Runway and xAI. On Arena Text-to-Video, Gen-4.5 scores 1223 Elo and Grok Imagine Video 1.5 1486 Elo (Arena, measured November 5, 2026).
Data verified November 6, 2026 · Dataset 2026-11-06
Side by side
Gen-4.5 and Grok Imagine Video 1.5, line by line
Prices in effect today, compared at the same tier wherever both list one. The better value in each row is highlighted.
| Fact | Gen-4.5 | Grok Imagine Video 1.5 |
|---|---|---|
| Price | ||
| Price per video second | Not listed | $0.08 |
| Independent benchmarks | ||
| Arena Text-to-Video | 1223 Elo (#6 of 6) | 1486 Elo (#2 of 6) (better) |
| Arena Image-to-Video | Not measured | 1454 Elo (#3 of 5) |
| Artificial Analysis Video Arena (image to video) | Not measured | 1051 Elo (#2 of 3) |
| Artificial Analysis Video Arena (text to video) | Not measured | 1058 Elo (#2 of 3) |
| Specs | ||
| Provider | Runway | xAI |
| Release date | Not reported | Not reported |
| Access | API only | API only |
| Context window | Not reported | Not reported |
| Max output | Not reported | Not reported |
| Input | text, image | text, image |
| Output | video | video |
Scores:Arena · 2026-11-06Artificial Analysis · 2026-11-03Artificial Analysis · 2026-11-03
Charts
Against every current video model
Where Gen-4.5 and Grok Imagine Video 1.5 land among the current models of their task, on every independent benchmark, on price and on context.
Where each stands
On Arena Text-to-Video, Gen-4.5 ranks #6 and Grok Imagine Video 1.5 #2 of 6 current models. Each bar is the share of current models it beats: on score, price and context.
Independent benchmarks
Arena Text-to-Video
Gen-4.5:#6of 6
1,223 Elo · ahead of 0%
Grok Imagine Video 1.5:#2of 6
1,486 Elo · ahead of 80%
Arena Image-to-Video
Gen-4.5: Not scored
Grok Imagine Video 1.5:#3of 5
1,454 Elo · ahead of 50%
Artificial Analysis Video Arena (image to video)
Gen-4.5: Not scored
Grok Imagine Video 1.5:#2of 3
1,051 Elo · ahead of 50%
Artificial Analysis Video Arena (text to video)
Gen-4.5: Not scored
Grok Imagine Video 1.5:#2of 3
1,058 Elo · ahead of 50%
Price and context
Price per video second
Gen-4.5: Not listed
Grok Imagine Video 1.5:#5of 8
$0.08 · cheaper than 43%
Quality against price
Grok Imagine Video 1.5 scores 1,486 at $0.08 (price per video second). The line joins the current models no other beats on both price and Arena Text-to-Video score; hover any point to name it.
Quality against price: the data
| Model | Provider | Price per video second | Arena Text-to-Video (Elo) |
|---|---|---|---|
| Gemini Omni 1.2 Flash | $0.070 | 1,541 | |
| Grok Imagine Video 1.5 | xAI | $0.080 | 1,486 |
| Dreamina Seedance 2.5 | ByteDance Seed | $0.23 | 1,480 |
| Veo 3.1 Preview | $0.40 | 1,363 | |
| grok-imagine-video | xAI | $0.050 | 1,341 |
Cost
What each costs
Example workloads at each provider's listed rates, then every other rate either one lists. The cheaper figure in each row is highlighted.
| Workload or rate | Gen-4.5 | Grok Imagine Video 1.5 |
|---|---|---|
| Example workloads | ||
| One minute of video | Not listed | $4.80 |
Your own bill will differ. These figures use list prices and example workloads. The AI Model Cost Audit reviews your real usage, shortlists models that score as well for each task for less, and estimates the savings.
Launch price $100, regular price $150
Verdict
When to choose each
Gen-4.5
Where it leads
No measured lead over Grok Imagine Video 1.5 in this data.
Best for
- Runway API video generation
Watch out for
- No per-second price is recorded here, so cost comparisons leave it out
Grok Imagine Video 1.5
Where it leads
- Higher Arena Text-to-Video score, 1486 Elo vs 1223 Elo
Best for
- Short 1080p clips with sound
Watch out for
- Editing and extending videos still use the older grok-imagine-video model
- xAI lists one $0.080 per second price with no breakdown by resolution
- xAI has not published a release date
From benchmark to production
Building on Gen-4.5 or Grok Imagine Video 1.5?
Public scores rarely hold on your own data. We test both models on your real tasks, then build the agent or pipeline around the one that wins.
AI Model Cost AuditLaunch price $100, regular price $150What the audit includes
FAQ
Gen-4.5 vs Grok Imagine Video 1.5 FAQ
Which scores higher on independent benchmarks, Gen-4.5 or Grok Imagine Video 1.5?
Grok Imagine Video 1.5 leads on Arena Text-to-Video, 1486 Elo to 1223 Elo. Scores are independent evaluations, not either vendor's launch figures.
Further reading
More on Gen-4.5 and Grok Imagine Video 1.5
Related comparisons
- Gemini Omni 1.2 Flash vs Gen-4.5
- Gemini Omni Flash 1.1 vs Grok Imagine Video 1.5
- Gemini Omni Flash 1.1 vs Gen-4.5
- Dreamina Seedance 2.5 vs Grok Imagine Video 1.5
- Gen-4.5 vs Veo 3.1 Preview
- Gemini Omni 1.2 Flash vs Grok Imagine Video 1.5
- Dreamina Seedance 2.5 vs Gen-4.5
- Grok Imagine Video 1.5 vs Veo 3.1 Preview
- Gen-4.5 vs grok-imagine-video
- Grok Imagine Video 1.5 vs Grok Imagine Video 1.5 Lite
- grok-imagine-video vs Grok Imagine Video 1.5
- Grok Imagine Video 1.5 vs Wan 3.0 Video
Production evaluation
Choosing between Gen-4.5 and Grok Imagine Video 1.5?
Public benchmarks narrow the shortlist. We run both on your own tasks, data and cost limits, then build the routing and review controls to run the winner in production.
- A head-to-head evaluation on your real workload
- Routing between models by cost and difficulty