video model comparison
Gemini Omni Flash Preview vs Gen-4.5
Gemini Omni Flash Preview and Gen-4.5 are both current video models, from Google and Runway. On Arena Text-to-Video, Gemini Omni Flash Preview scores 1513 Elo and Gen-4.5 1225 Elo (Arena, measured September 22, 2026).
Data verified October 12, 2026 · Dataset 2026-10-12
Side by side
Standard-tier prices in effect today. The better value in each row is highlighted.
| Fact | Gemini Omni Flash Preview | Gen-4.5 |
|---|---|---|
| Price per video second | $0.10 | Not reported |
| Arena Text-to-Video | 1513 Elo (#1 of 4) (better) | 1225 Elo (#4 of 4) |
| Arena Image-to-Video | 1465 Elo (#1 of 3) | Not measured |
| Provider | Runway | |
| Release date | June 30, 2026 | Not reported |
| Access | API only | API only |
| Context window | 1,048,576 tokens | Not reported |
| Max output | Not reported | Not reported |
| Input | text, image, video | text, image |
| Output | video, audio | video |
Scores:Arena · 2026-10-12
When to choose each
Gemini Omni Flash Preview
Best for
- Conversational video generation and editing
Watch out for
- This preview endpoint may change before becoming stable; it generates 3 to 10 second 720p video
Gen-4.5
Best for
- Runway API video generation
Watch out for
- No exact compatible public benchmark snapshot is recorded
Gemini Omni Flash Preview vs Gen-4.5 FAQ
Which scores higher on independent benchmarks, Gemini Omni Flash Preview or Gen-4.5?
Gemini Omni Flash Preview leads on Arena Text-to-Video, 1513 Elo to 1225 Elo. Scores are independent evaluations, not either vendor's launch figures.
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Production evaluation
Choosing between Gemini Omni Flash Preview and Gen-4.5?
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