{"product_id":"gpt-4o-multimodal-ai-chat-assistant-text-images-pdfs-n8n","title":"GPT-4o Multimodal AI Chat Assistant (Text, Images, PDFs) n8n","description":"\u003ch3\u003eChat with text, images, and PDFs using GPT-4o—built inside n8n\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003eGPT-4o Multimodal AI Chat Assistant\u003c\/strong\u003e n8n workflow lets you create a smart AI chat that can understand \u003cstrong\u003etext\u003c\/strong\u003e, \u003cstrong\u003eimages\u003c\/strong\u003e, and \u003cstrong\u003ePDFs\u003c\/strong\u003e. Upload files in the chat, ask questions, and get contextual answers powered by \u003cstrong\u003eOpenAI’s GPT-4o multimodal model\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this workflow does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStarts a session\u003c\/strong\u003e with the \u003cem\u003en8n hosted chat UI\u003c\/em\u003e via a chat trigger node.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccepts user input\u003c\/strong\u003e as either text or an uploaded file.\u003c\/li\u003e\n  \u003cli\u003eChecks whether a \u003cstrong\u003efile was included\u003c\/strong\u003e using conditional logic (e.g., an \u003cstrong\u003eif\u003c\/strong\u003e step).\u003c\/li\u003e\n  \u003cli\u003eIf an \u003cstrong\u003eimage\u003c\/strong\u003e is uploaded, converts it to \u003cstrong\u003ebase64\u003c\/strong\u003e and analyzes it using \u003cstrong\u003eGPT-4o vision capabilities\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003eGenerates a \u003cstrong\u003enatural-language description\u003c\/strong\u003e of the image (or handles mixed media) and responds to the user’s question in context.\u003c\/li\u003e\n  \u003cli\u003eKeeps conversation state with a \u003cstrong\u003ememory buffer\u003c\/strong\u003e so follow-up questions work intelligently.\u003c\/li\u003e\n  \u003cli\u003eUses GPT-4o to handle \u003cstrong\u003etext-only\u003c\/strong\u003e and \u003cstrong\u003emixed media\u003c\/strong\u003e input seamlessly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUse cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePDF explainer bot\u003c\/strong\u003e for documents you want users to ask questions about.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal knowledge chat\u003c\/strong\u003e that supports media-assisted explanations (e.g., screenshots, diagrams, document uploads).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAI-driven support assistant\u003c\/strong\u003e embedded in a website, where customers can upload images or PDFs to speed up troubleshooting.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePersonal assistant\u003c\/strong\u003e style chat with intelligent follow-ups across a conversation thread.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003en8n-nodes-langchainchat\u003c\/strong\u003e chat trigger (hosted chat UI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003en8nn8n-nodes-langchainagent\u003c\/strong\u003e \/ \u003cstrong\u003en8nn8n-nodes-langchainchain llm\u003c\/strong\u003e to route prompts to the LLM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003en8nn8n-nodes-langchainopen ai\u003c\/strong\u003e for \u003cstrong\u003eOpenAI GPT-4o\u003c\/strong\u003e access (requires your API key)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eif\u003c\/strong\u003e + supporting nodes (including sticky note) to manage file detection and flow\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRequirement:\u003c\/strong\u003e configure \u003cstrong\u003eFile Upload\u003c\/strong\u003e on the chat\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"N8N Commerce","offers":[{"title":"Default Title","offer_id":45726245454003,"sku":"N8N-5857","price":42.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/6279\/6723\/files\/5_ofygsXQr5kJDBSnCWQY_BEhgS8o3.png?v=1785057359","url":"https:\/\/buyflowscripts.com\/products\/gpt-4o-multimodal-ai-chat-assistant-text-images-pdfs-n8n","provider":"N8N Commerce","version":"1.0","type":"link"}