Pick Omni Flash if…
You want the strongest current physics, scene consistency across edits, conversational refinement, and broad multimodal input. You're starting a new project today.
Gemini Omni Flash vs Veo 3.1
Google launched Gemini Omni Flash at I/O 2026 as the successor to Veo 3.1. Both are first-party Google video models, but they're aimed at different surfaces and workflows. Here's a fact-based comparison of where each one wins.
· Based on Google's launch disclosures
● TL;DR
The short answer
Gemini Omni Flash is the newer model and Google's go-forward flagship. Veo 3.1 still powers parts of Google Flow internally. For most net-new production work, pick Omni Flash. For high-volume jobs where cost-per-second matters, Veo 3.1 Lite remains a strong option.
Pick Veo 3.1 (or 3.1 Lite) if…
You need high-volume generation where cost-per-clip matters more than the latest physics. Veo 3.1 Lite specifically targets developers building high-throughput video apps at lower price points than the flagship.
Where they overlap
Both produce cinematic, watermark-free output, support multiple aspect ratios, ship with SynthID provenance, and are accessible through Google's own apps. Veo 3.1 introduced native audio generation in 2025; Omni Flash builds on that foundation.
Feature-by-feature comparison
Concrete differences based on Google's published capabilities for each model.
Last updated
How we compared
Comparisons reflect Google's public disclosures at and after Google I/O 2026 — the Gemini Omni launch post, Veo 3.1 documentation on DeepMind, and Google Flow product release notes. Where Google has not yet disclosed a number (e.g. flagship per-second pricing), we say so explicitly rather than estimate. Gomni is independent of Google; this comparison is editorial, not sponsored.
| Feature | Gemini Omni Flash | Veo 3.1 |
|---|---|---|
| Multimodal input | Text + image + audio + video as first-class inputs in any combination.✓ | Text and image primarily; audio is generated as output, not driven as input. |
| Physics simulation | Measurably improved gravity, kinetic energy, fluid dynamics — cleaner water, cloth, hair, collisions.✓ | Solid but earlier-generation; visible imperfections in fluid and cloth shots. |
| Scene & character consistency | Scene state preserved across conversational turns; characters keep identity across edits.✓ | Solid, but each edit tends to restart the scene. |
| Conversational editing | Natural-language refinements applied to existing clips without regenerating from scratch.✓ | Prompt-driven regeneration; less stateful between edits. |
| Real-world knowledge | Inherits Gemini's broader knowledge base; references to real places, periods, phenomena render closer to reality.✓ | Capable but less grounded in real-world facts. |
| Clip length | Up to 10 seconds at launch (deployment cap, not model limit). | Comparable length range. |
| Cost-efficiency at scale | Flagship-tier pricing in staged disclosure as of May 2026. | Veo 3.1 Lite explicitly priced for high-volume developer use at significantly lower per-clip cost.✓ |
| Audio generation | Synchronized audio at parity with Veo, building on the Veo 3.1 foundation. | Introduced native audio generation in 2025; mature and stable. |
| Provenance | Invisible SynthID watermark embedded in every clip; no visible mark. | Invisible SynthID watermark embedded in every clip; no visible mark. |
● Decision guide
Where each model is the right pick
Three concrete decisions, three different answers.
Pick Gemini Omni Flash. The physics, consistency, and conversational refinement matter more than per-clip cost on hero pieces. The output quality is closer to professional production.
● FAQ
Common questions
Quick answers about the Omni Flash vs Veo 3.1 decision.
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