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    How to make AI Chatbot using OpenAI LLM
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    How to make AI Chatbot using OpenAI LLM

    Build a fully functional voice-powered AI chatbot step-by-step. Learn how to create a voice-powered AI chatbot using OpenAI's LLM Live! Complete tutorial from setup to deployment.

    Ovi Shekh
    3 min read

    Build a fully functional voice-powered AI chatbot step-by-step. ๐Ÿค– Learn how to create a voice-powered AI chatbot using OpenAI's LLM Live! Complete tutorial from setup to deployment.

    Prerequisites

    Before starting, make sure you have the following ready:

    • โœ“ Python 3.8+: Ensure you have Python installed. Check with python --version.
    • โœ“ OpenAI API Key: Sign up at platform.openai.com to get your API key.
    • โœ“ Basic Coding Knowledge: Familiarity with Python and basic programming concepts.
    • โœ“ Text Editor: VS Code, PyCharm, or any code editor of your choice.

    OpenAI Setup

    Step 1: Create OpenAI Account

    Visit platform.openai.com/signup and sign up for an account.

    Step 2: Generate API Key

    Navigate to the API Keys section and create a new secret key. Save it securely!

    โš ๏ธ Important: Never share your API key or commit it to public repositories!

    Step 3: Install Required Packages

    pip install openai python-dotenv pyaudio
    

    Building the Chatbot

    1. Create Environment File

    Create a .env file to store your API key securely:

    OPENAI_API_KEY=your_api_key_here
    

    2. Initialize OpenAI Client

    from openai import OpenAI
    import os
    from dotenv import load_dotenv
    
    load_dotenv()
    client = OpenAI(api_key=os.getenv("OPENAI_API_KEY"))
    

    3. Create Chat Function

    def chat(message, history=[]):
        response = client.chat.completions.create(
            model="gpt-4",
            messages=history + [{"role": "user", "content": message}]
        )
        return response.choices[0].message.content
    

    4. Add Conversation Loop

    history = []
    while True:
        user_input = input("You: ")
        if user_input.lower() == "exit":
            break
        response = chat(user_input, history)
        print(f"Bot: {response}")
        history.append({"role": "user", "content": user_input})
        history.append({"role": "assistant", "content": response})
    

    Adding Voice Features

    ๐ŸŽค Speech-to-Text

    Use OpenAI's Whisper model to convert voice input to text:

    def transcribe_audio(audio_file):
        transcript = client.audio.transcriptions.create(
            model="whisper-1",
            file=audio_file
        )
        return transcript.text
    

    ๐Ÿ”Š Text-to-Speech

    Convert bot responses to natural-sounding voice:

    def text_to_speech(text):
        response = client.audio.speech.create(
            model="tts-1",
            voice="alloy",
            input=text
        )
        response.stream_to_file("output.mp3")
    

    Testing & Debugging

    • โœ“ Test Basic Conversation: Start with simple queries.
    • โœ“ Check Memory Retention: Verify history is maintained.
    • โœ“ Test Voice Features: Test speech-to-text and text-to-speech.
    • โœ“ Handle Errors Gracefully: Add try-catch blocks for API errors.

    Deployment Options

    • ๐Ÿš€ Render: Free hosting for Python apps.
    • โ˜๏ธ Vercel: Serverless deployment with automatic scaling.
    • ๐Ÿ’ป Replit: Code and host in one place.
    • ๐Ÿณ Docker + AWS: Production-grade deployment.

    Start Building Your AI Chatbot!

    You now have all the knowledge to create amazing conversational AI. Time to build something incredible!

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