How To Build AI Agents With ChatGPT (GPT 4.1)

The video provides a beginner-friendly tutorial on building an AI email agent using GPT-4.1 and N8N, demonstrating how to automate email responses by processing incoming messages and generating draft replies. The presenter guides viewers through the setup process, including integrating Gmail and the OpenAI API, and showcases the functionality of the agent in action.

In the video, the presenter introduces the capabilities of GPT-4.1, particularly focusing on its application in building AI agents. The tutorial is designed for beginners, guiding viewers through the process of creating a simple email agent using N8N, a low-code drag-and-drop platform. The goal is to automate email responses, allowing the AI agent to manage incoming emails and generate draft replies efficiently.

The presenter demonstrates the functionality of the email agent, explaining how it operates within the user’s Gmail account. The agent is triggered when a new email arrives, acting like a “doorbell” that initiates the workflow. The AI processes the email content using the OpenAI chat model (GPT-4.1) and generates a draft response, which is then saved in the user’s Gmail drafts for review and sending.

To set up the email agent, the presenter walks through the steps of adding a Gmail trigger in N8N, which monitors the inbox for new messages. After linking the user’s Google account for email access, the next step involves adding the AI agent node. The presenter emphasizes the importance of defining a system prompt that instructs the AI on how to analyze incoming emails and create appropriate responses.

The tutorial continues with the integration of the OpenAI chat model, where the presenter explains how to obtain and input an API key from the OpenAI platform. This key is essential for connecting the AI model to the N8N workflow. The presenter also discusses the addition of memory features to the AI agent, allowing it to retain context from previous interactions, which enhances the quality of the generated responses.

Finally, the presenter tests the workflow by sending a sample email and demonstrates how the AI agent successfully creates a draft response in Gmail. The entire setup process is completed in under five minutes, showcasing the ease of building AI agents with N8N. The video concludes with an invitation for viewers to engage with the content, request further tutorials, and access shared templates for building their own AI agents.