Generate metaphor-based product video ads Veo 3

How it works 1. Brainstorm metaphors – Takes product details (name, description, audience, value props) and generates 5 visual metaphors using Gemini 2.5 Pro 2. Select best metaphor – Scores each metaphor on relevance, AI efficiency, simplicity, abstraction, and visual appeal, then picks the winner and creates a 3-act script + short title 3. Generate main video prompt – Translates the winning metaphor and script into a 120–150 word cinematic Veo 3 prompt with lighting, camera movement, and atmospheric details 4. Generate complementary scene – Creates a 40–60 word prompt for a static background plate that visually matches the main scene 5. Create both videos – Generates two 8-second AI videos with Veo 3.0 and uploads both to GCS 6. Merge & render – Combines the main video, complementary background, product name, and metaphor title using Creatomate 7. Deliver – Sends the final ad to Telegram --- Set up steps 1. API Keys – Set up accounts for Google Cloud (Veo 3.0 + Gemini + GCS), Creatomate, and Telegram 2. Credentials in n8n – Add each API key as a credential in your n8n instance 3. Configure variables – Update the SET node with your Google Cloud PROJECTID and CLIENTEMAIL 4. Enter product details – Fill in the Input variables node with your product name, description, target audience, and value propositions 5. Test – Execute the workflow to generate a metaphor-based video ad for your product