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Build Your First AI Customer Support Agent: A Step-by-Step Tutorial

1. Defining Your Use Case and Data Requirements

• Identify the most frequent customer queries and support pain points your chatbot will handle.
• Gather and clean your existing knowledge base: FAQs, product manuals, or internal documentation.
• Decide between Retrieval-Augmented Generation (RAG) for dynamic data or fine-tuning for fixed knowledge.

2. Setting Up Your Development Environment

• Install Python 3.10+ and essential libraries: LangChain, OpenAI, ChromaDB, and python-dotenv.
• Obtain and securely store API keys for your chosen LLM (e.g., OpenAI, Anthropic, or Cohere).
• Create a virtual environment and a clean project folder with a logical file structure.

3. Building the Knowledge Base with Vector

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