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Create viral social media videos with FalAI Flux/Kling and GPT-4 automation

MatthewMatthew
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2/3/2026
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AI-Powered Viral Video Factory 🚀

This workflow automates the entire process of creating short, cinematic, fact-based videos ready for social media. It takes a single concept, generates a script and visuals, creates video clips, adds a voiceover, and assembles a final video, which is then uploaded directly to your Google Drive. It's perfect for content creators and marketing agencies looking to scale video production with minimal manual effort.

How It Works 🎬

  1. Generate a Viral Idea 💡: The workflow begins with the Create New Idea1 (OpenAI) node, which generates a viral-ready video concept, including a punchy title, hashtags, and a brief description based on a core theme (e.g., space, black holes). This idea is then logged in a Google Sheet.

  2. Create a Cinematic Script & Voiceover 📜:

    • An OpenAI node (Generating scenes1) creates a detailed 12-scene script, outlining the visuals for a 60-second video.
    • The script text for all scenes is combined and prepared for voiceover generation by another OpenAI node (Generate Voiceover).

  3. Generate Scene-by-Scene Visuals ✨: The workflow loops through each of the 12 scenes to create an animated clip:

    • Image Generation: An HTTP Request node sends the scene's prompt to the fal-ai/flux model to create a photorealistic still image.
    • Animation Prompting: The Video Prompts1 (OpenAI Vision) node analyzes the generated image and creates a new, specific prompt to animate it cinematically.
    • Image-to-Video: Another HTTP Request node uses the fal-ai/kling-video model to turn the still image into a 5-second animated video clip based on the new animation prompt.

  4. Assemble the Final Video 🎞️:

    • Stitch Clips: Once all 12 clips are generated, the Merge Clips node uses the fal-ai/ffmpeg-api to concatenate them into a single, seamless 60-second video.
    • Add Audio: The Combine Voice and Video node then layers the AI-generated voiceover onto the stitched video.

  5. Deliver to Google Drive 📂: Finally, the completed video is converted from a URL to a file and automatically uploaded to your specified Google Drive folder for easy access and publishing.

Key Technologies Used

  • n8n: For orchestrating the entire automated workflow.
  • OpenAI (GPT-4.1 & GPT-4o): For idea generation, scriptwriting, voiceover, and vision analysis.
  • Fal.ai: For high-performance, API-based image generation (Flux), video animation (Kling), and video processing (FFMPEG API).
  • Google Drive & Sheets: For logging ideas and storing the final video output.

Setup Instructions

  1. Add Credentials:

    • In n8n, add your OpenAI API key.
    • Connect your Google account for Google Sheets and Google Drive access.
    • You will need a Fal.ai API Key.

  2. Configure Fal.ai API Key:

    • Crucially, you must replace the placeholder API key in all HTTP Request nodes that call the fal.run URL.
    • Find the Authorization header in each of these nodes and replace the existing key with your own Key YOUR_FAL_AI_KEY_HERE.
    • Nodes to update: Create Images1, Get Images1, Create Video1, Get Video1, Merge Clips, Get Final video, Combine Voice and Video.

  3. Configure OpenAI Nodes:

    • Select each OpenAI node (e.g., Create New Idea1, Generating scenes1) and choose your OpenAI credential.
    • You can customize the main prompt in the Create New Idea1 node to change the theme of the videos you want to generate.

  4. Configure Google Sheets & Drive:

    • In the Organise idea, caption etc1 node, select your Google Sheets credential and specify the Spreadsheet and Sheet ID you want to use for logging ideas.
    • In the Upload file to drive node, select your Google Drive credential and choose the destination folder for your final videos.

Create Viral Social Media Videos with Falai, Fluxkling, and GPT-4 Automation

This n8n workflow automates the creation of viral social media video content ideas by leveraging Google Sheets for input, OpenAI's GPT-4 for content generation, and a custom API for video creation (Falai/Fluxkling - inferred from directory name, but the JSON only shows a generic HTTP Request). The workflow ensures a streamlined process from idea inception to video generation.

What it does

This workflow automates the following steps:

  1. Manual Trigger: Initiates the workflow upon a manual click, allowing for on-demand content generation.
  2. Read Google Sheet: Retrieves video content ideas and associated data from a specified Google Sheet.
  3. Generate Video Script with OpenAI (GPT-4): Uses OpenAI to generate a detailed video script based on the content retrieved from Google Sheets.
  4. Wait: Pauses the workflow for a specified duration, potentially to manage API rate limits or allow for external processing.
  5. Generate Video (HTTP Request): Sends the generated script and other necessary data to an external API (likely Falai/Fluxkling, based on the directory name) to create the video.
  6. Upload to Google Drive: Stores the generated video (or a reference to it) in a designated Google Drive folder.
  7. Merge Data: Combines the original Google Sheet data with the results from the video generation and Google Drive upload.
  8. Update Google Sheet: Writes the updated information, including the video link or status, back to the Google Sheet.
  9. Process Data (Code Node): A custom code node for any additional data processing or formatting before final output.
  10. Sticky Note: Provides a visual note within the workflow for documentation or instructions.

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running instance of n8n.
  • Google Sheets Account: With a spreadsheet containing your video content ideas.
  • Google Drive Account: For storing the generated videos.
  • OpenAI API Key: With access to GPT-4 for script generation.
  • Falai/Fluxkling (or similar video creation API): An account and API access for a video generation service. The HTTP Request node will need to be configured with the correct endpoint and authentication for this service.
  • n8n Credentials: Configured for Google Sheets, Google Drive, and OpenAI.

Setup/Usage

  1. Import the workflow: Download the provided JSON and import it into your n8n instance.
  2. Configure Credentials:
    • Set up your Google Sheets credential to access your content idea spreadsheet.
    • Set up your Google Drive credential for video storage.
    • Set up your OpenAI credential with your API key.
  3. Update Google Sheets Node:
    • Specify the Spreadsheet ID and Sheet Name where your video ideas are located.
    • Ensure the columns in your sheet match the data expected by the OpenAI node (e.g., "Video Idea", "Topic").
  4. Update OpenAI Node:
    • Review the prompt to ensure it correctly utilizes the data from Google Sheets to generate a suitable video script.
  5. Update HTTP Request Node (Video Generation):
    • Configure the URL, Method, Headers, and Body to interact with your chosen video creation API (e.g., Falai, Fluxkling). This will likely involve sending the generated script.
    • Ensure any necessary authentication (e.g., API key) is correctly passed.
  6. Update Google Drive Node:
    • Specify the Folder ID where you want to upload the generated videos.
  7. Update Google Sheets Node (Final Update):
    • Ensure this node is configured to write back the video URL or status to the correct column in your Google Sheet.
  8. Activate the workflow: Once configured, activate the workflow.
  9. Execute: Click the "Execute workflow" button on the "Manual Trigger" node to run the workflow on demand.

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