Gemini Omni Flash and Veo 3.1 both come from Google DeepMind. They cost the same per second at 720p. They are not the same product.
Veo 3.1 is a dedicated video generation model — optimized for cinematic single-shot quality, 4K output, and scene extension up to 140 seconds. Gemini Omni Flash is a multimodal system that happens to generate video — its core advantage is conversational editing, where you refine clips through natural language without regenerating from scratch.
Google ships both in parallel deliberately. This guide covers what each does best, what they actually cost, and how to choose between them.
Quick Specs
Gemini Omni Flash | Veo 3.1 | |
|---|---|---|
Type | Multimodal generalist | Dedicated video model |
Max resolution | 720p | Up to 4K (via upscale) |
Duration per clip | Up to 10 seconds | 4, 6, or 8 seconds |
Scene extension | Not supported | Up to 20 extensions (~140s total) |
Native audio | Yes | Yes, with spatial audio |
Conversational editing | Yes (multi-turn) | No (regenerate per prompt) |
Reference images | Up to 5 photos | Up to 3 photos |
Frame control | No | First frame, last frame, or both |
Model tiers | 1 (preview) | 3 (Lite, Fast, Standard) |
API status | Preview (rolling out) | Stable, documented |
Watermark | SynthID + C2PA | SynthID + C2PA |
Veo 3.1 launched in October 2025 and added the Lite tier in March 2026. Omni Flash launched at Google I/O on May 19, 2026 (consumer) and got API access on June 30, 2026 (developer preview).
Pricing Comparison
Both models charge per second of video output, but the pricing structures are different.
Veo 3.1 (Per Second)
Tier | 720p | 1080p | 4K |
|---|---|---|---|
Lite | $0.05 | $0.08 | — |
Fast | $0.10 | $0.12 | $0.30 |
Standard | $0.40 | $0.40 | $0.60 |
Gemini Omni Flash
Component | Price |
|---|---|
Input tokens | $1.50 / 1M tokens |
Text output (incl. thinking) | $9.00 / 1M tokens |
Video output | $17.50 / 1M tokens |
Effective per-second (720p) | ~$0.10 |
At 5,792 video output tokens per second, Omni Flash's 720p video costs ~$0.10/sec — identical to Veo 3.1 Fast at 720p.
The Hidden Cost: Thinking Tokens
Omni Flash generates text output (including thinking tokens) alongside video. These are billed at $9.00/M — separate from the video token cost. On a typical 10-second generation with conversational context, the thinking overhead adds roughly $0.02–0.05 per clip.
Small on a single clip. At scale — thousands of generations per day — it adds up to 5–15% on top of the video cost.
Cost Per Clip
Scenario | Omni Flash | Veo 3.1 Fast | Veo 3.1 Lite |
|---|---|---|---|
8-sec 720p, single shot | ~$0.83 | $0.80 | $0.40 |
8-sec 1080p, single shot | N/A (720p only) | $0.96 | $0.64 |
8-sec 720p, 3 iterations to get right | ~$0.85 (edit) | $2.40 (3x regen) | $1.20 (3x regen) |
60-sec video (scene extension) | Not supported | $6.00 (Fast 720p) | $3.00 (Lite 720p) |
The third row is where the models diverge. With Veo 3.1, refining a clip means regenerating entirely — 3 attempts = 3x the cost. With Omni Flash, conversational editing modifies the existing clip, so iterations cost a fraction of a full generation.
Video Quality
On single-shot generation quality — lighting, composition, motion coherence — Veo 3.1 Standard is the better model. Even with sparse prompts, Veo 3.1 tends to produce more cinematic-looking output with better default lighting and camera behavior.
Omni Flash prioritizes what Google calls "correctness over polish": physics accuracy, character identity preservation, and edit fidelity across turns. The visual output is good but not best-in-class for a single hero shot.
For context, in the current landscape of AI video models, Veo 3.1 Standard and Seedance 2.0 are generally considered the top tier for raw output quality.
Resolution
This is the starkest difference. Veo 3.1 generates at 1080p natively and upscales to 4K. Omni Flash maxes out at 720p.
For social media (Shorts, Reels, TikTok), 720p is adequate. For any production, commercial, or large-screen use case, 720p is a non-starter — and Veo 3.1 is the only Google option.
Audio
Both generate synchronized audio by default. Veo 3.1 has an edge: spatial audio that simulates three-dimensional sound (a car passing left to right sounds like it's moving across the stereo field). As of July 2026, no other major model matches this. Veo 3.1 also outputs at 48kHz — higher than the industry default.
Omni Flash's audio is synchronized but currently lacks spatial positioning.
Editing: The Core Differentiator
Conversational editing is Omni Flash's defining capability and the main reason to choose it over Veo 3.1.
How it works: After generating a clip, you describe changes in natural language — "make the sky more orange," "slow down the camera pan," "change the character's jacket to blue." Each edit builds on the previous state rather than regenerating from scratch. Character identity, physics state, and scene context persist across turns.
Why it matters: With Veo 3.1 (and most other video models), getting a clip right means writing a better prompt and regenerating entirely. Each attempt costs the full per-second price. With Omni Flash, you converge on the result you want through low-cost iterations.
For workflows that are inherently iterative — advertising, storyboarding, product demos, social content where brand consistency matters — this can reduce both cost and time significantly.
What Omni Flash can't do yet:
Masked/regional edits are rolling out but not universally available
No scene extension (you can't chain clips into longer sequences)
Maximum 10 seconds per clip
Duration and Scene Extension
Veo 3.1 supports scene extension: chaining up to 20 extensions from an 8-second seed clip, producing videos over 140 seconds total. Each extension analyzes the final 24 frames for character position, lighting, and motion continuity.
Omni Flash is capped at 10 seconds per clip with no extension capability. For anything longer than 10 seconds, Veo 3.1 is currently the only Google option.
API Readiness
Omni Flash | Veo 3.1 | |
|---|---|---|
Model ID |
|
|
Status | Preview, rolling out | Stable, documented |
Tiers | 1 | 3 (Lite / Fast / Standard) |
Pricing | Published | Published |
Batch/priority | Not available | Not listed |
Veo 3.1 has been in production use since late 2025 with stable endpoints, documented error handling, and three pricing tiers for different quality/cost tradeoffs. Omni Flash's API launched June 30, 2026 and is still in preview — usable, but with the caveats that come with a preview label.
For production systems that need reliability guarantees, Veo 3.1 is the safer bet today. For prototyping and workflows where conversational editing adds clear value, Omni Flash is worth integrating now.
Both models are available through the Gemini API, Google AI Studio, and Vertex AI. Third-party API aggregators that support Google's video models can simplify access if you're already using multiple providers.
When to Use Veo 3.1
High-resolution output — anything above 720p. Veo 3.1 is the only option for 1080p/4K.
Videos longer than 10 seconds — scene extension enables clips over 2 minutes.
Single-shot cinematic quality — when you need a polished hero clip and your prompt is well-crafted.
High-volume generation at low cost — Veo 3.1 Lite at $0.05/sec (720p) is the cheapest Google video option.
Spatial audio requirements — 3D sound positioning is Veo-only.
Production API stability — established endpoints, documented error behavior, three-tier pricing.
When to Use Gemini Omni Flash
Iterative workflows — advertising, storyboarding, social content where you need to tweak and refine.
Character consistency across shots — model-level identity preservation, not just prompt-based reference matching.
Multimodal input — combining text, images, audio, and video as generation inputs.
Cost-sensitive iteration — when the alternative is regenerating from scratch 3–5 times.
Quick prototyping — conversational editing is faster than prompt engineering for exploratory work.
Routing by Use Case
Use case | Recommended model | Why |
|---|---|---|
Social media clips (Shorts/Reels) | Omni Flash | 720p is fine, iterative editing saves time |
Product demo / ad | Omni Flash → Veo 3.1 final | Edit with Omni, final render with Veo for quality |
Cinematic short film | Veo 3.1 Standard | 4K, spatial audio, scene extension |
E-commerce product video | Veo 3.1 Lite or Fast | High volume, cost matters, single-shot is enough |
Storyboard / concept video | Omni Flash | Speed and iteration over polish |
Long-form content (>10s) | Veo 3.1 | Scene extension, no alternative |
Some teams will use both: Omni Flash for concepting and iteration, Veo 3.1 for final renders. The models complement each other more than they compete.
What's Coming
Google has announced Gemini Omni Pro — a higher-capability version of the Omni architecture — with no release date. Omni Flash's current limitations (720p cap, no scene extension, preview API) are likely to evolve, but timelines are unclear.
For now, building on Veo 3.1 for production and experimenting with Omni Flash for editorial workflows is the pragmatic approach. If you're designing a system that uses Google video models, abstracting the model layer so you can swap between them is worth the small upfront investment.
Frequently Asked Questions
Is Gemini Omni Flash replacing Veo 3.1?
No. Google ships both in parallel. Inside the Gemini app, Omni Flash has replaced Veo as the default video backend for subscribers, but the Veo 3.1 API remains fully supported with no announced sunset date. They serve different purposes — Omni Flash for editing-centric workflows, Veo 3.1 for quality-first generation.
Which has better video quality?
Veo 3.1 Standard produces higher-quality single-shot output with more cinematic default aesthetics. It also supports 1080p/4K, while Omni Flash is limited to 720p. For raw visual quality on a single clip, Veo 3.1 wins.
Is Gemini Omni Flash cheaper than Veo 3.1?
At 720p, both cost ~$0.10 per second (Omni Flash vs Veo 3.1 Fast). Veo 3.1 Lite is cheaper at $0.05/sec. However, for iterative workflows where you'd otherwise regenerate multiple times, Omni Flash's conversational editing can reduce total cost by avoiding full regenerations.
Can Gemini Omni Flash generate 4K video?
Not currently. Omni Flash outputs at 720p only. For 4K, Veo 3.1 is the only Google option — native 1080p generation with upscaling to 4K for an additional $0.50 per clip.
How long can Gemini Omni Flash videos be?
Up to 10 seconds per clip with no scene extension. Veo 3.1 supports 4–8 second clips with scene extension chaining up to ~140 seconds total (20 extensions).
Does Gemini Omni Flash have an API?
Yes, since June 30, 2026. The model ID is gemini-omni-flash-preview. It's available through the Gemini API, Google AI Studio, and Vertex AI, though it's still in preview status. Veo 3.1's API is more mature with stable endpoints and three pricing tiers.
Which model has better audio?
Both generate synchronized audio natively. Veo 3.1 has an edge with spatial audio (3D sound positioning) and 48kHz output. Omni Flash generates synchronized audio but without spatial positioning.
Can I use both models in the same project?
Yes. A common workflow is using Omni Flash for concepting and iterative editing, then rendering final output through Veo 3.1 for higher quality and resolution. Both are accessible through the same Google API infrastructure, and unified API platforms make routing between them straightforward.
Which is better for e-commerce product videos?
Veo 3.1, particularly the Lite ($0.05/sec) or Fast ($0.10/sec) tiers. E-commerce videos are typically single-shot with a well-defined prompt — you don't need conversational editing, and the lower per-clip cost matters at volume. Veo 3.1's higher resolution options also better showcase product details.
What is Gemini Omni Pro?
An announced but unreleased higher-capability version of the Omni architecture. No release date, pricing, or detailed specs have been published. Building production systems around Omni Pro availability is not advisable until Google provides concrete timelines.