Generate cheap Viral AI Videos to TikTok with Google Veo3 Fast and Postiz

This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

This workflow automates the entire process of generating short AI videos using Google Veo3 Fast , enhancing them with SEO-optimized titles , and uploading them directly to TikTok via Postiz, all triggered from a central Google Sheet.

This setup ensures a seamless pipeline from video creation to TikTok upload, with minimal manual intervention.

Benefits

• Full automation from prompt input to social media publishing.
• Cheaper video generation using Veo3 Fast vs traditional AI video tools.
• Centralized management through Google Sheets – no coding required for end users.
• SEO-enhanced titles with GPT-4o to boost engagement.
• Scheduled or manual triggering , perfect for batch operations.
• No manual uploads – integration with Postiz means content is published hands-free.

How It Works

This workflow automates the process of generating AI videos using Google Veo3 Fast , saving them to Google Drive , and uploading them to TikTok via Postiz. Here’s how it functions:

1. Trigger : The workflow can be started manually or scheduled (e.g., every 5 minutes) to check for new video requests in a Google Sheet.
2. Video Generation :
   • The workflow retrieves a video prompt and duration from the Google Sheet.
   • It sends the prompt to Google Veo3 Fast via the Fal.ai API to generate the video.
   • The system periodically checks the video generation status until it’s completed.
3. Post-Processing :
   • Once the video is ready, it is downloaded and uploaded to Google Drive.
   • A YouTube-optimized title is generated using GPT-4o Mini based on the video prompt.
4. TikTok Upload :
   • The video is uploaded to Postiz , a social media scheduling tool.
   • Postiz then publishes the video to the connected TikTok account with the generated title.
5. Tracking : The Google Sheet is updated with the video URL for record-keeping.

Set Up Steps

To configure this workflow, follow these steps:

1. Prepare the Google Sheet :

   • Create a Google Sheet with columns:
     • PROMPT : Description of the video.
     • DURATION : Length of the video.
     • VIDEO : (Leave empty, auto-filled by the workflow).

2. Obtain API Keys :

   • Sign up at Fal.ai to get an API key for Google Veo3 Fast.
   • Replace YOURAPIKEY in the "Create Video" node’s HTTP header (Authorization: Key YOURAPIKEY).

3. Configure Postiz for TikTok :

   • Create a Postiz account (free trial available).
   • Connect your TikTok account in Postiz and note the Channel ID.
   • Replace XXX in the "TikTok" node with your TikTok Channel ID.
   • Set the Postiz API key in the "Upload Video to Postiz" node.

4. Set Up Google Drive & Sheets Access:

   • Ensure the workflow has OAuth access to:
     • Google Sheets (to read/write video data).
     • Google Drive (to store generated videos).

5. Schedule or Run Manually :

   • The workflow can be triggered manually or scheduled (e.g., every 5 minutes) to process new video requests.

Note : This workflow requires self-hosted n8n due to community node dependencies.

Need help customizing?

Contact me for consulting and support or add me on Linkedin.