How to Create AI Videos with Gemini Omni 1.2 Flash in 2026: 15-Second Clips, Editing & Pricing

AI video has come a long way from the short, glitchy clips that used to flood social feeds. What was once a novelty is now a genuine creator workflow: marketers storyboard ads with it, small teams prototype product videos in an afternoon, and freelancers deliver polished explainers without ever opening a camera bag. Google's latest step in that direction arrived on 5 November 2026, when Gemini Omni 1.2 Flash reached general availability in the Gemini API and business tools.

This guide explains what the new model can do, how to create your first AI video with it, how much it costs, and how it fits alongside the other AI video tools you may already use. No hype, no jargon — just the practical steps.

What Is Gemini Omni 1.2 Flash?

Gemini Omni 1.2 Flash is Google's AI video generation model, built for speed and ease of use. You describe the video you want in plain language, and the model generates a clip for you. What makes this release worth paying attention to is not just that it generates video — earlier tools did that too — but how it changes the editing experience. Instead of re-rolling a prompt from scratch every time something looks off, you can now keep talking to the model and refine the result.

The Headline Upgrades

Three things stand out in this release:

• 15-second clips. The model generates clips up to 15 seconds long, which is enough for a complete scene, a product moment, or a social-media hook — and long enough that a handful of clips can carry a full short video.
• Conversational multi-turn editing. You can refine a generated clip by chatting: ask for a different mood, a new background, or a tighter camera shot, and the model revises the clip in place. Editing becomes a conversation rather than a series of fresh starts.
• 720p output at $0.07 per second. Pricing is simple and per-second, so you always know what a clip will cost before you generate it. We break the numbers down in the pricing section below.

Who It Is For

Gemini Omni 1.2 Flash is a good fit for content creators making short-form videos, marketers producing ads and social content, small teams that need video without a production crew, and freelancers who want to offer video as a service. If your work involves turning ideas into watchable clips quickly — product demos, explainers, social posts, storyboards — this is a tool built for your workflow.

How to Create AI Videos with Gemini Omni 1.2 Flash (Step by Step)

Step 1 — Access It

Gemini Omni 1.2 Flash is available through the Gemini API and Google's business tools. If you are a developer or a team already working in Google's ecosystem, the API is the direct route. If you simply want affordable access to Gemini AI without setting up API billing yourself, Gemini AI Pro from ProAccess is one practical option — it gives you access to Google's Gemini AI at a price that suits individual creators and small teams.

Step 2 — Write a Prompt That Works

Good AI video starts with a good prompt, and the formula is simpler than most people expect. Cover four things:

• Subject: who or what is in the frame — for example, "a barista in a small neighbourhood café".
• Action: what happens — "pouring latte art into a ceramic cup".
• Style: the look and feel — "warm morning light, cinematic, realistic".
• Camera: how the shot moves — "slow push-in, eye level".

Keep the prompt focused: one scene, one action, one mood. Overlong prompts tend to confuse the model and dilute the result.

Step 3 — Generate Your First 15-Second Clip

Enter your prompt and generate the clip. Fifteen seconds sounds short, but it is a generous canvas for a single scene: a product reveal, a reaction shot, a landscape panning into a storefront. Watch the result in full before judging it. AI video is rarely perfect on the first pass, and that is normal — the real power of this model is in the next step.

Step 4 — Refine with Conversational Editing

This is where Gemini Omni 1.2 Flash earns its keep. Instead of rewriting your prompt and generating a brand-new clip, describe the change you want in plain language: "make the lighting warmer", "change the background to a busy street", "slow the camera movement down". The model revises the existing clip, keeping what worked and adjusting what did not. Two or three conversational turns are usually enough to take a decent clip to a good one.

Step 5 — Export and Polish

Once a clip looks right, export it and bring it into your editing workflow. This is where stitching, captions, music, and final colour tweaks happen. A tool like Descript Creator fits naturally here: it is built for AI-assisted video editing, so you can assemble your 15-second clips into a finished piece, clean up the audio, and add text overlays without a steep learning curve.

Gemini Omni 1.2 Flash Pricing Explained

The pricing is refreshingly simple: 720p video costs $0.07 per second. That means a single 15-second clip costs about $1.05. Because you pay per second, budgeting a project is just arithmetic:

Clips	Total video	Approximate cost
1 clip	15 seconds	$1.05
4 clips	60 seconds	$4.20
10 clips	150 seconds	$10.50
20 clips	300 seconds	$21.00

A few budgeting habits help. Generate one clip at a time and review it before queuing the next batch, so you are not paying for variations you will never use. Use conversational edits instead of regenerating from scratch where possible.

Gemini Omni 1.2 Flash vs Other AI Video Tools

It is tempting to ask which AI video tool is "the best", but the honest answer is that generation, editing, and polish are different jobs — and different tools do them best. Here is how the three tools in this guide compare:

Tool	Best at	Role in your workflow
Gemini Omni 1.2 Flash	Generating 15-second clips and refining them by chatting	Creation — the starting point for new footage
Runway Pro	Established AI video generation with a deep feature set	Creation — an alternative or complement for generation
Descript Creator	AI-assisted editing, captions, and audio cleanup	Polish — assembling clips into a finished video

Runway Pro is the established name in AI video generation, and many creators already have projects and habits built around it. Gemini Omni 1.2 Flash is the newer arrival, and its conversational editing is the feature that sets it apart. Neither replaces an editor: Descript Creator covers the assembly and polish stage that both generation tools hand off to. The sensible setup is not one tool or the other — it is generation plus editing, working together.

Practical Tips for Better AI Videos

• Structure every prompt the same way: subject, action, style, camera. Consistency makes your results predictable.
• Keep characters and settings consistent across turns: when you edit conversationally, repeat the key details (the same café, the same outfit) so the model does not drift.
• Think in short clips: plan your video as a sequence of 15-second scenes, then stitch them together. Short, deliberate scenes look far better than one over-ambitious prompt.
• Use conversational edits for small fixes: a lighting tweak or a background swap is a one-sentence change — do not regenerate the whole clip for it.
• Keep expectations realistic: AI video is excellent for stylised scenes, product moments, and social content. It is not a replacement for a real camera crew on every project, and knowing that boundary keeps your work honest.

Common Mistakes to Avoid

• Overlong prompts: cramming a whole story into one prompt produces muddled clips. One scene per prompt, every time.
• Expecting one perfect take: plan for two or three refinement turns. The first generation is a draft, not the final cut.
• Ignoring the cost per second: $0.07 a second is cheap per clip, but it adds up across a big batch. Review each clip before generating the next.
• Skipping the edit pass: raw generated clips rarely feel finished. The stitching, captions, and audio cleanup in your editor are what make a video feel professional.

FAQ

What is Gemini Omni 1.2 Flash?

Gemini Omni 1.2 Flash is Google's AI video generation model that reached general availability on 5 November 2026. It generates video clips from text prompts and supports conversational, multi-turn editing, so you can refine a clip by describing changes in plain language.

How long can AI video clips from Gemini Omni 1.2 Flash be?

The model supports 15-second video clips. For longer videos, creators typically generate several 15-second clips and stitch them together in an editor.

How much does Gemini Omni 1.2 Flash video generation cost?

720p video generation is priced at $0.07 per second. That works out to about $1.05 for a single 15-second clip, so a batch of ten clips costs around $10.50.

Can I edit an AI video by chatting with Gemini Omni 1.2 Flash?

Yes. The model supports conversational multi-turn editing, which means you can ask for changes in plain language — for example, changing the lighting, swapping a background, or adjusting the camera angle — without starting over from scratch.

Do I need the Gemini API to use Gemini Omni 1.2 Flash?

The model is available through the Gemini API and Google's business tools. If you want an affordable way to access Gemini AI, Gemini AI Pro from ProAccess is one option worth exploring.

Is Gemini Omni 1.2 Flash a replacement for video editing software?

Not quite. It generates and refines clips, but a dedicated editor is still the best place for stitching clips together, adding captions, and fine-tuning audio. Tools like Descript Creator complement it well in that final polish stage.

Conclusion

Gemini Omni 1.2 Flash is a practical step forward for AI video: 15-second clips give you room to build real scenes, conversational editing turns revision into a quick chat instead of a fresh start, and $0.07-per-second pricing makes it easy to budget a project before you begin. The workflow that works best is simple — generate with Gemini, compare with established tools like Runway Pro where it suits you, and polish the result in an editor like Descript.

If you are curious, the cheapest way to learn is to make one clip: write a focused prompt, generate your 15 seconds, and try a conversational edit. And if you want affordable access to Gemini AI and the video tools around it, take a look at Gemini AI Pro on ProAccess — a good place to start your first AI video project.