Multi-functional Telegram Bot: Gemini AI, RAG PDF & Google Suite

This advanced n8n workflow creates a versatile Telegram bot that serves as an AI assistant for text and voice interactions. It transcribes voice messages with OpenAI Whisper, processes queries via Google Gemini AI agent, and responds with synthesized voice using Replicate API. The bot supports intelligent PDF document search through a RAG system: it indexes PDFs from Google Drive using Mistral OCR, stores embeddings in Qdrant, and retrieves context for accurate Gemini-powered answers.

Google Suite integration enables calendar management (create events, find holidays, list birthdays), Drive file searches, and automated Docs invoice generation from templates. Brave Search provides real-time web info, making the bot a comprehensive tool for productivity.

Ideal for beginners and pros building AI agents; saves hours on setup for voice bots, document QA, and office automation. Use cases include personal assistants, team support bots, knowledge base Q&A, and automated admin tasks in self-hosted n8n environments.