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How to Build a Custom AI Chatbot in 30 Minutes (No-Code + Python)

1. What You’ll Build & Why It Matters

• Overview of the final product: a context-aware chatbot powered by OpenAI’s GPT-4o-mini, deployable on a simple web interface.
• Real-world use cases: customer support automation, internal knowledge base assistant, or lead qualification bot.
• Key tools you’ll use: OpenAI API, Streamlit (for the UI), and Python – no prior ML experience required.

2. Setting Up Your Environment (5 Minutes)

• Step-by-step instructions to install Python, create a virtual environment, and install dependencies (openai, streamlit, python-dotenv).
• How to obtain and securely store your OpenAI API key using a .env file.
• Verify the setup with a quick “Hello World” API call to confirm everything works.

3. Writing the Core Chatbot Logic (10

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