Generate YouTube thumbnails via Telegram using BrowserAct and Gemini (Nano Banana Pro)

This workflow acts as an AI-powered "Viral Architect" for YouTube creators. It automates the thumbnail design process by:

1. Intent Analysis: An AI Agent classifies your Telegram messages to distinguish between casual chat and thumbnail requests.
2. Competitor Research: BrowserAct scrapes YouTube for top-ranking videos on your specific topic.
3. Visual Forensics: An AI Vision Agent (GPT-4o) analyzes competitor thumbnails to understand their color usage, composition, and text strategy.
4. Generation: A specialized Gemini Agent synthesizes this research into a high-fidelity prompt, and the Nano Banana Pro model renders a final 4K thumbnail image delivered to your chat.

This template is designed to scrape:

• Thumbnail Images: High-resolution covers of the top-performing videos in your niche.
• Video Titles: The headlines associated with successful thumbnails.
• Performance Metrics: Ranking position to determine which visual strategies are currently working best.

• Credentials: Connect Telegram, BrowserAct, Google Sheets, OpenRouter, and Google Gemini in n8n.
• BrowserAct Setup: Ensure the "Thumbnail Maker Bot" template is saved in your account.
• Google Sheet: Create a sheet named "Thumbnail Data base" with a tab named "Database" and headers: Keyword, Current Workflow Sheet ID.
• Telegram Bot: Connect your bot token.
• Run: Send a video topic (e.g., "Kling 2.6") to your bot to start the process.

Scraping top-performing videos allows you to:

• Reverse-Engineer Success: Base your designs on data-proven concepts rather than guessing.
• Increase CTR: Use AI to replicate the psychological hooks used by top creators.
• Save Time: Automate the research phase and get a high-quality, ready-to-use image in minutes.

Customization Options:

• Change Art Style: Modify the "Generate Image Prompt" agent to enforce aesthetics like "3D Render" or "Anime."
• Adjust Research: Change the number of videos scraped to analyze a wider range of competitors.
• Text Overlay: Add an image processing node (like Cloudinary) to overlay text on the final image.

Requirements:

• BrowserAct (with "Thumbnail Maker Bot" template).
• Google Sheets & Telegram accounts.
• OpenRouter & Google Gemini (for Nano Banana Pro) accounts.