AI Personal Assistant: GPT-4o RAG Voice WhatsApp Supabase

Intelligent AI assistant for WhatsApp handling voice, text, docs & images with GPT-4o, RAG via Supabase, transcription & multi-channel replies.

n8n
AI Personal Assistant: GPT-4o RAG Voice WhatsApp Supabase

This advanced n8n workflow creates a human-like AI personal assistant for WhatsApp using GPT-4o and Supabase. It processes user inputs via text, voice (transcribed with OpenAI Whisper), documents (PDF/OCR), and images, then leverages RAG for knowledge base searches, chat memory, and tool integrations for calendars and emails.

Key features include automatic document indexing and summarization in Supabase vector DB, modular tools for prompt updates, knowledge management, and extensible multi-channel support (WhatsApp via Evolution API, Instagram, Facebook). It offers session-based memory in PostgreSQL for contextual conversations.

Benefits: Saves hours on personal assistance tasks, enables scalable AI interactions without coding, and boosts productivity for individuals or teams. Use cases: Personal task management, customer support automation, HR query handling in ATS-like scenarios, or knowledge base Q&A for businesses.

Setup is straightforward: Host on n8n, configure API keys for OpenAI, Supabase, Evolution API, and optional tools like Google Calendar. Highly extensible for custom needs.

$27.99
Last updated October 3, 2026
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How to import this workflow into n8n

  1. 1Purchase or download the workflow to get the n8n workflow JSON file.
  2. 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
  3. 3Open each node marked with a credential warning and connect your own accounts and API keys.
  4. 4Run the workflow once manually to verify the data flow, then toggle it to Active.

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