Viral video creator: Fal.ai AI videos → TikTok, YouTube & Instagram automation

The AI Viral Video Factory: From Concept to Content in Minutes This n8n workflow is a fully automated pipeline that takes a creative concept and transforms it into a polished, platform-ready short-form video. It ideates, generates video and audio using AI, merges them, and publishes the final content to your social media accounts! ✨ Core Features - Automated Ideation: Leverages GPT-4 to generate unique, trend-aware ASMR video concepts, complete with captions and hashtags. - AI-Powered Visuals: Uses Fal.ai to transform text prompts into multiple cinematic video scenes. - Custom Soundscapes: Generates matching ASMR audio tracks to enhance the sensory experience. - End-to-End Automation: The entire process, from idea generation to social media publishing, runs automatically on a schedule. - Content Management: Logs all ideas and final video URLs into Google Sheets for easy tracking and management. 🛠️ Setup and Configuration Guide Follow these detailed steps to get the workflow running. You'll need accounts for n8n, OpenAI, Google, Fal.ai, and Blotato. Prerequisites - n8n instance (self-hosted or cloud) - OpenAI account with API access - Google account with Sheets access - Fal.ai account with API access - Blotato account for social media publishing - Connected Instagram and TikTok accounts in Blotato Step 1: Google Sheets Template Setup This workflow requires two separate sheets in a single Google Spreadsheet. 1. Create a new Google Spreadsheet - Go to Google Sheets and create a new spreadsheet - Name it something memorable (e.g., "AI Video Factory Data") - Note the Spreadsheet ID from its URL: - You'll need this ID later for the workflow configuration 2. Sheet 1: Idea Logging This sheet stores the initial ideas generated by the AI. - Create a sheet and name it exactly: Ideas - Set up the following columns in this exact order (case-sensitive): | Column A | Column B | Column C | Column D | Column E | |----------|----------|----------|----------|----------| | Caption | Idea | Environment | Sound | Status | - Do not add any additional columns or headers 3. Sheet 2: Final Output Logging This sheet stores the links to the final, published videos. - Create a second sheet in the same spreadsheet - Name it exactly: Published - Set up the following columns in this exact order (case-sensitive): | Column A | Column B | Column C | Column D | |----------|----------|----------|----------| | finaloutput | thumbnailurl | status | createddate | - Do not add any additional columns or headers Step 2: API Key and Credentials Configuration You need to obtain and configure credentials for each service used in the workflow. OpenAI Configuration 1. Get your API Key: - Go to platform.openai.com - Navigate to API Keys section - Create a new API key and copy it 2. Add to n8n: - In n8n, go to Credentials > New - Search for "OpenAI" and select it - Paste your API key - Name the credential (e.g., "OpenAI account") - Save the credential 3. Update the workflow: - In the nodes LLM: Generate Raw Idea (GPT-4.1) and LLM: Draft Video Prompt Details (GPT-4.1) - Select the OpenAI credential you just created Google Sheets Configuration 1. Set up OAuth2: - In n8n, go to Credentials > New - Search for "Google Sheets" and select Google Sheets OAuth2 API - Follow the OAuth setup instructions to connect your Google account - Name the credential (e.g., "Google Sheets account") 2. Update the workflow: - In all Google Sheets nodes: - Save Idea & Metadata to Google Sheets - Save Final Video URL to Sheets - Retrieve Final Video Data - Select your Google Sheets credential - Enter your Spreadsheet ID in the Document ID field - Ensure the sheet names match exactly ("Ideas" and "Published") Fal.ai Configuration 1. Get your API Key: - Sign up at fal.ai - Go to your dashboard and get your API Key - The key format is: key xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 2. Update the workflow: - No separate n8n credential needed - Find these HTTP Request nodes and update the Authorization header: - Generate Video Clips (Wavespeed AI) - Generate ASMR Sound (Fal AI) - Merge Clips into Final Video (Fal AI) - Poll Video Generation Status - Poll Sound Generation Status - Poll Merge Status - In each node's Header Parameters, replace {{YOURFALAIKEY}} with your actual key - The value should be: key YOURACTUALFALAIKEY Blotato Configuration 1. Get your API Key: - Sign up at blotato.com - Get your API key from the dashboard - Connect your Instagram and TikTok accounts - Note down the Account IDs for each platform 2. Update the workflow: - In these nodes: - Upload Video to Blotato - Publish to Instagram - Publish to TikTok - Replace {{YOURBLOTATOAPIKEY}} with your actual API key in the Header Parameters 3. Set Social Media IDs: - In the Assign Social Media IDs node - Replace {{YOURINSTAGRAMACCOUNTID}} with your Instagram account ID from Blotato - Replace {{YOURTIKTOKACCOUNTID}} with your TikTok account ID from Blotato Step 3: Workflow Activation 1. Test the workflow: - Use the manual trigger to test before scheduling - Monitor each node's execution - Check Google Sheets for proper data logging 2. Schedule automation: - The workflow is set to run daily - Adjust the schedule in the Trigger: Start Daily Content Generation node as needed ⚙️ Workflow Breakdown Ideation & Storage The workflow triggers on schedule. An AI Agent generates a unique ASMR video concept and saves the Idea, Caption, Environment, and Sound details into your first Google Sheet. Scene Prompting A second AI Agent takes the approved idea from the sheet and creates three detailed, cinematic scene prompts designed for text-to-video AI. Video & Audio Generation The workflow makes parallel API calls to Fal.ai: - Generates a video clip for each of the three scenes - Generates a single, corresponding ASMR audio track - Continuously polls Fal.ai until assets are ready Merging & Finalizing Once all assets are generated, it sends a request to Fal.ai's FFMPEG API to stitch the video clips and audio track into one final video. Logging & Publishing The final video URL is saved to your second Google Sheet. The workflow then uploads this video to Blotato and publishes it to your specified Instagram and TikTok accounts. 🎨 Customization Guide Content Type Customization To adapt this workflow for different content types: 1. Modify the AI prompts: - In AI Agent: Generate Creative Video Idea, update the prompt to match your content style - Adjust the systemMessage to reflect your brand voice and content guidelines 2. Change video parameters: - In Generate Video Clips (Wavespeed AI), modify: - duration: Video length (default: 10 seconds) - aspectratio: Change from "9:16" to "16:9" for horizontal videos 3. Adjust audio generation: - In Generate ASMR Sound (Fal AI), update the prompt for different audio styles - Modify cfgstrength (1-10) for more/less adherence to prompt Platform-Specific Adjustments 1. Instagram-specific: - Maximum video duration: 90 seconds for Reels - Optimal hashtag count: 5-10 2. TikTok-specific: - Maximum video duration: 10 minutes - Optimal hashtag count: 3-5 - In Publish to TikTok node, adjust privacy settings as needed Scheduling Options Modify the Trigger: Start Daily Content Generation node: - Change from daily to hourly, weekly, or specific times - Add multiple triggers for different time zones - Use cron expressions for complex schedules Error Handling Add error handling nodes: - Connect error outputs to notification systems - Log failed attempts to a separate Google Sheet - Implement retry logic for API failures 🎯 Perfect For - Content Creators looking to scale their output with minimal effort - Digital Marketers seeking a consistent stream of engaging, trend-based content - Brands wanting to build a strong presence on short-form video platforms - Automation Enthusiasts building content-driven businesses 🚀 Getting Started 1. Import the workflow into your n8n instance 2. Follow the setup guide above step-by-step 3. Test with manual execution first 4. Monitor the first few automated runs 5. Adjust prompts and parameters based on results 📧 Support For questions or issues with this template: - Email: heniykb@gmail.com - n8n Community Forum: community.n8n.io 🔧 Technical Stack - Workflow Engine: n8n - AI Models: GPT-4, Fal.ai (Wavespeed & MMAudio-v2) - Data Storage: Google Sheets - Publishing: Blotato API - Output: Platform-optimized 9:16 videos with synchronized ASMR audio ---