Chatbot and Local CoPilot with Local LLM, RAG, LangChain, and Guardrail

8 min readJun 24, 2024

Chatbot Application with Local LLM, RAG, LangChain, and Guardrail

I’ve developed a chatbot application designed for informative and engaging conversationAs you already aware that Retrieval-augmented generation (RAG) is a technique that combines information retrieval with a set of carefully designed system prompts to provide more accurate, up-to-date, and contextually relevant responses from large language models (LLMs). By incorporating data from various sources such as relational databases, unstructured document repositories, internet data streams, and media news feeds, RAG can significantly improve the value of generative AI systems.

Developers must consider a variety of factors when building a RAG pipeline: from LLM response benchmarking to selecting the right chunk size.

In tapplication demopost, I demonstrate how to build a RAG pipeline uslocal LLM which can be converted to ing NVIDIA AI Endpoints for LangChain. FirI have you crdeate a vector storeconnecting with one of the Hugging Face dataset though we can by downding web p or can use any pdf etc easily.aThen and generating their embeddings using SentenceTransformer or you can use the NVIDIA NeMo Retriever embedding microservice and searching for similarity using FAISS. I then showcase two different chat chains for querying the vector store. For this example, I use local LangChain chain and a Python FastAPI based REST API services which is running in different thread within the Jupyter Notebook environment itself. At last I have preapred a small but beautiful front end with HTML, Bootstrap and Ajax as a Chat Bot front end to interact by users. However you can use the NVIDIA Triton Inference Server documentation, though the code can be easily modified to use any other soueok.

Introducing ChoiatBot Local CoPilot: Your Customizable Local Copilot Agent

ChoiatBot offers a revolutionary approach to personalized chatbot solutions, developed to operate entirely on CPU-based systems without the need for an internet connection. This ensures not only enhanced privacy but also unrestricted accessibility, making it ideal for environments where data security is paramount.

Key Features and Capabilities

ChoiatBot stands out with its ability to be seamlessly integrated with diverse datasets, allowing users to upload and train the bot with their own data and documents. This customization empowers businesses and individuals alike to tailor the bot’s responses to specific needs, ensuring a truly personalized user experience.

Powered by the google/flan-t5-small model, ChoiatBot leverages state-of-the-art technology known for its robust performance across various benchmarks. This model’s impressive few-shot learning capabilities, as evidenced by achievements like 75.2% on the five-shot MMLU benchmark, ensure that ChoiatBot delivers accurate and contextually relevant responses even with minimal training data.

The foundation of ChoiatBot’s intelligence lies in its training on the “Wizard-of-Wikipedia” dataset, renowned for its groundbreaking approach to knowledge-grounded conversation generation. This dataset not only enriches the bot’s understanding but also enhances its ability to provide nuanced and informative responses based on a broad spectrum of topics.

Performance and Security

One of ChoiatBot’s standout features is its ability to function offline, offering unparalleled data security and privacy. This capability is particularly advantageous for sectors dealing with sensitive information or operating in environments with limited internet connectivity. By eliminating reliance on external servers, ChoiatBot ensures that sensitive data remains within the user’s control, adhering to the strictest security protocols.

Moreover, ChoiatBot’s implementation on CPU-based systems underscores its efficiency and accessibility. This approach not only reduces operational costs associated with cloud-based solutions but also enhances reliability by mitigating risks related to internet disruptions or server downtimes.

Applications and Use Cases

ChoiatBot caters to a wide array of applications, from customer support automation to educational tools and personalized assistants. Businesses can integrate ChoiatBot into their customer service frameworks to provide instant responses and streamline communication channels. Educational institutions can leverage ChoiatBot to create interactive learning environments where students can receive tailored explanations and guidance.

For developers and data scientists, ChoiatBot offers a versatile platform for experimenting with different datasets and fine-tuning models. The provided code, along with detailed documentation on usage, encourages innovation and facilitates the adaptation of advanced AI capabilities to specific project requirements.

Conclusion

In conclusion, ChoiatBot represents a leap forward in AI-driven conversational agents, combining cutting-edge technology with a commitment to user privacy and customization. Whether you are looking to enhance customer interactions, optimize educational experiences, or explore the frontiers of AI research, ChoiatBot stands ready as your reliable local copilot agent, empowering you to harness the full potential of AI in your endeavors. Discover ChoiatBot today and unlock a new era of intelligent, personalized interactions tailored to your unique needs and aspirations:

Development Environment:

Operating System: Windows 10 (widely used and compatible)

Hardware: CPU (no NVIDIA GPU required, making it accessible to a broader audience)

Language Model:

Local LLM (Large Language Model): This provides the core conversational caUsed Google Flan 5 small LLM.f using a CPU)

Hugging Face Dataset: You’ve leveraged a small dataset from Hugging Face, a valuable resource for pre-trained models and datasets. This enables you to fine-tune the LLM for your specific purposes.

Data Processing and Training:

LagChain (if applicable): If you’re using LagChain, it likely facilitates data processing and training pipelines for your LLM, streamlining the development process.

Guardrails (Optional):

NVIDIA Nemo Guardrail Library (if applicable): While Guardrail is typically used with NVIDIA GPUs, it’s possible you might be employing a CPU-compatible version or alternative library for safety and bias mitigation.

Key Features:

Dataset Agnostic: This chatbot can be trained on various datasets, allowing you to customize its responses based on your specific domain or requirements.

General Knowledge Base: The initial training with a small Wikipedia dataset provides a solid foundation for general knowledge and information retrieval.

High Accuracy: You’ve achieved impressive accuracy in responses, suggesting effective training and data selection.

Good Quality Responses: The chatbot delivers informative and well-structured answers, enhancing user experience and satisfaction.

Additional Considerations:

Fine-Tuning Dataset: Consider exploring domain-specific datasets from Hugging Face or other sources to further enhance the chatbot’s expertise in your chosen area.

Active Learning: If you’re looking for continuous learning and improvement, investigate active learning techniques where the chatbot can identify informative data points to refine its responses.

User Interface: While this response focuses on the backend, a well-designed user interface (text-based, graphical, or voice) can significantly improve ushatbot application’s capabilities!