🧠 CogniTalk — ChatGPT Clone with Ollama & Streamlit

CogniTalk is a local ChatGPT-style web app powered by Ollama, Streamlit, and MongoDB.
It lets you chat with LLMs, auto-generates chat titles, and stores your chat history persistently in MongoDB.

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🚀 Features

• 💬 ChatGPT-like UI built using Streamlit
• 🤖 Local LLM integration via Ollama
• 🧱 Persistent chat storage with MongoDB
• 🪄 Automatic chat title generation using LlamaIndex prompts
• ⚡ Dynamic model selection from available Ollama models
• 🧠 Smooth user experience — chats auto-refresh, history view in sidebar

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🧩 Tech Stack

Component	Technology
Frontend	Streamlit
Backend LLM	Ollama
Database	MongoDB
Prompt Handling	LlamaIndex PromptTemplate
Language	Python 3.10+

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⚙️ Installation & Setup

1️⃣ Clone the Repository

git clone https://github.com/<your-username>/CogniTalk.git
cd CogniTalk

python -m venv .venv source .venv/bin/activate # for Mac/Linux .venv\Scripts\activate # for Windows

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Run the App streamlit run main.py