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Generate & publish professional video ads with Veo 3, Gemini & Creatomate

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2/3/2026
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Professional AI-Powered Ad Generator

Creating high-quality video ads has traditionally been one of the biggest challenges for small businesses and marketers. It usually requires a production team, editing software, and days of effort before anything is ready to publish. That makes consistency almost impossible — especially if you want to publish new ads every day.

This workflow changes the process entirely. Built in n8n, the Professional AI-Powered Ad Generator combines AI and automation to handle everything from script creation to video rendering and social media publishing. The goal is simple: allow you to create and distribute short, engaging video ads in minutes, without relying on a studio, editors, or complicated tools.

Why This Workflow Matters

Most businesses know the importance of consistent advertising, but producing daily video content has always felt out of reach. This workflow makes it practical by:

  • Automating creative tasks that normally require a writer or video editor.
  • Integrating multiple AI tools into one connected system.
  • Publishing directly to social media so your ads reach people without extra steps.

Instead of spending hours editing or outsourcing to agencies, you can now go from idea to published ad in the same amount of time it takes to write a short post.

How It Works

The process starts with a simple form where you enter your business details: name, service, offer, and call-to-action. From there, the workflow runs automatically:

1. Script Planning

AI generates a short, two-part script that feels natural and relatable.

  • Part one introduces a problem.
  • Part two presents your business as the solution, ending with a strong CTA.

2. Video Generation with Google Veo 3

Each part of the script is turned into an 8-second cinematic video clip, visually optimized for vertical platforms.

3. Character Consistency with Google Gemini

Characters are analyzed and matched across both clips, creating a smooth narrative with visual continuity.

4. Assembly with Creatomate

Both clips are merged into a 16-second vertical ad, automatically formatted for TikTok, Instagram, and YouTube Shorts.

5. Automated Publishing with Postiz

The final video is scheduled and posted to your connected social accounts.

  • Captions and titles are generated automatically.
  • No manual uploads or extra steps.

What You Gain

  • ✅ Daily publishing at scale – Generate and release multiple ads per day.
  • ⏱️ Time savings – Go from idea to ad in just minutes.
  • 📈 Consistency – Maintain a professional, frequent social presence.
  • 💰 Cost efficiency – No production crew, no software, no outsourcing.
  • 🧩 Flexibility – Ideal for local businesses, service providers, and agencies.

Honest Advantage

This workflow doesn’t replace creativity — it makes it practical. You still define the message:

  • The service
  • The offer
  • The story

But the heavy lifting — scripting, video production, visual continuity, and publishing — is automated. You focus on ideas, while the system handles execution.

Conclusion

The Professional AI-Powered Ad Generator is not a promise of magic. It’s a dependable system that helps small teams and solo entrepreneurs consistently create and publish professional ads — without the usual bottlenecks.

> From a simple brief to a polished, published ad — all in one automated flow.

Advertising, simplified. Automation, scaled.

Generate and Publish Professional Video Ads with Veo 3, Gemini, and Creatomate

This n8n workflow automates the creation and publishing of professional video ads by leveraging AI for script generation and a video automation platform for dynamic video production. It streamlines the process from content idea to final video, making it ideal for marketers, content creators, and businesses looking to scale their video ad campaigns efficiently.

What it does

This workflow simplifies the complex task of video ad creation into a few automated steps:

  1. Triggers the workflow: The workflow is manually initiated, allowing for on-demand video ad generation.
  2. Initial Data Setup: Sets up a base prompt for the AI to generate a video ad script.
  3. AI Model Selection: Routes the workflow to use either the OpenAI Chat Model or the Google Gemini Chat Model based on a defined condition (e.g., availability, preference, or specific use case).
  4. Generates Video Ad Script: Utilizes the selected AI model (either OpenAI or Google Gemini) with a "Basic LLM Chain" to generate a detailed video ad script based on the provided prompt and a structured output parser.
  5. Parses AI Output: Extracts the structured data from the AI-generated script, ensuring it's in a usable format for subsequent steps.
  6. Prepares Creatomate Request: Transforms the parsed AI output into the specific JSON format required by the Creatomate API for video generation. This includes setting up dynamic elements like text, images, and audio.
  7. Generates Video with Creatomate: Makes an HTTP request to the Creatomate API to generate the video using a predefined template and the dynamically generated script.
  8. Waits for Video Completion: Pauses the workflow execution for a specified duration (e.g., 60 seconds) to allow Creatomate to process and render the video.
  9. Retrieves Video Status: Fetches the status of the video generation from Creatomate to confirm completion.
  10. Handles Video Generation Status: Checks the status of the video generation. If the video is still rendering, it converts the current data to a file (likely for debugging or logging) and then merges the flow, potentially to retry or log the incomplete status.
  11. Processes Completed Video: If the video generation is complete, it proceeds to further steps (not fully detailed in the provided JSON, but likely involves publishing or downloading).

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running n8n instance (cloud or self-hosted).
  • OpenAI Account & API Key (Optional): If you choose to use the OpenAI Chat Model for script generation.
  • Google Cloud Project & API Key (Optional): If you choose to use the Google Gemini Chat Model for script generation.
  • Creatomate Account & API Key: For automated video generation.
  • Creatomate Template ID: A pre-designed video template in Creatomate that the workflow will use.
  • JWT Credential: For secure authentication with Creatomate or other services if required.

Setup/Usage

  1. Import the workflow: Download the JSON provided and import it into your n8n instance.
  2. Configure Credentials:
    • Set up your OpenAI API Key credential (if using OpenAI).
    • Set up your Google Gemini API Key credential (if using Google Gemini).
    • Set up your Creatomate API Key credential.
    • Configure any necessary JWT credentials for authentication.
  3. Customize the "Edit Fields (Set)" node: Adjust the prompt value to define the initial input for your video ad script generation.
  4. Select AI Model: In the "Switch" node, ensure the condition correctly routes to your preferred AI model (OpenAI Chat Model or Google Gemini Chat Model).
  5. Configure Creatomate Request:
    • Update the "HTTP Request" node for Creatomate to use your specific Creatomate template ID and any other dynamic data you wish to pass.
    • Ensure the Authorization header includes your Creatomate API key, possibly using the JWT node if required.
  6. Adjust Wait Time: Modify the "Wait" node's duration if your Creatomate video rendering typically takes more or less than 60 seconds.
  7. Activate the workflow: Once configured, activate the workflow.
  8. Execute the workflow: Click the "Execute workflow" button in the "Manual Trigger" node to start the process.

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