video model comparison
Gemini Omni 1.2 Flash vs Gen-4.5
Gemini Omni 1.2 Flash and Gen-4.5 are both current video models, from Google and Runway. On Arena Text-to-Video, Gemini Omni 1.2 Flash scores 1541 Elo and Gen-4.5 1223 Elo (Arena, measured November 5, 2026).
Data verified November 6, 2026 · Dataset 2026-11-06
Side by side
Gemini Omni 1.2 Flash and Gen-4.5, 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 | Gemini Omni 1.2 Flash | Gen-4.5 |
|---|---|---|
| Price | ||
| Price per video second | $0.07 (720p) | Not listed |
| Independent benchmarks | ||
| Arena Text-to-Video | 1541 Elo (#1 of 6) (better) | 1223 Elo (#6 of 6) |
| Arena Image-to-Video | 1502 Elo (#1 of 5) | Not measured |
| Specs | ||
| Provider | Runway | |
| Release date | November 5, 2026 | Not reported |
| Access | API only | API only |
| Context window | 131,072 tokens | Not reported |
| Max output | 65,536 tokens | Not reported |
| Input | text, image, video | text, image |
| Output | video, audio, text | video |
Scores:Arena · 2026-11-06
Charts
Against every current video model
Where Gemini Omni 1.2 Flash and Gen-4.5 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, Gemini Omni 1.2 Flash ranks #1 and Gen-4.5 #6 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
Gemini Omni 1.2 Flash:#1of 6
1,541 Elo · ahead of 100%
Gen-4.5:#6of 6
1,223 Elo · ahead of 0%
Arena Image-to-Video
Gemini Omni 1.2 Flash:#1of 5
1,502 Elo · ahead of 100%
Gen-4.5: Not scored
Price and context
Price per video second
Gemini Omni 1.2 Flash:#4of 8
$0.07 · cheaper than 57%
Gen-4.5: Not listed
Quality against price
Gemini Omni 1.2 Flash scores 1,541 at $0.07 (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 | Gemini Omni 1.2 Flash | Gen-4.5 |
|---|---|---|
| Example workloads | ||
| One minute of video | $4.20 (720p) | Not listed |
| Other listed rates | ||
| 1M output tokens, video | $12 | Not listed |
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
Gemini Omni 1.2 Flash
Where it leads
- Higher Arena Text-to-Video score, 1541 Elo vs 1223 Elo
- Accepts video input
- Also outputs audio and text
- Supports video editing
Best for
- Short clips with sound and consistent characters that need conversational edits
Watch out for
- Arena's ratings rest on 2,745 votes or fewer per board so far, far fewer than older video models
- 1080p and 4K come from upsampling, and first-and-last-frame interpolation is limited to 3 to 10 seconds
- Paid tier only: there is no free-tier access in the Gemini API
Gen-4.5
Where it leads
No measured lead over Gemini Omni 1.2 Flash 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
From benchmark to production
Building on Gemini Omni 1.2 Flash or Gen-4.5?
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
Gemini Omni 1.2 Flash vs Gen-4.5 FAQ
Which scores higher on independent benchmarks, Gemini Omni 1.2 Flash or Gen-4.5?
Gemini Omni 1.2 Flash leads on Arena Text-to-Video, 1541 Elo to 1223 Elo. Scores are independent evaluations, not either vendor's launch figures.
How do Gemini Omni 1.2 Flash and Gen-4.5 differ in features?
Gemini Omni 1.2 Flash takes text, image and video input; Gen-4.5 takes text and image. Gemini Omni 1.2 Flash produces video, audio and text; Gen-4.5 produces video. Only Gemini Omni 1.2 Flash supports video editing.
Further reading
More on Gemini Omni 1.2 Flash and Gen-4.5
Related comparisons
- Dreamina Seedance 2.5 vs Gemini Omni 1.2 Flash
- Gemini Omni Flash 1.1 vs Gen-4.5
- Gemini Omni 1.2 Flash vs Gemini Omni Flash 1.1
- Gen-4.5 vs Veo 3.1 Preview
- Gemini Omni 1.2 Flash vs grok-imagine-video
- Dreamina Seedance 2.5 vs Gen-4.5
- Gemini Omni 1.2 Flash vs Grok Imagine Video 1.5
- Gen-4.5 vs grok-imagine-video
- Gemini Omni 1.2 Flash vs Veo 3.1 Preview
- Gen-4.5 vs Grok Imagine Video 1.5
- Gemini Omni 1.2 Flash vs Grok Imagine Video 1.5 Lite
- Gemini Omni 1.2 Flash vs Veo 3.1 Lite Preview
Production evaluation
Choosing between Gemini Omni 1.2 Flash 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