I will build custom ai chatbot with rag and langchain


About this gig
Is your team wasting hours answering the same questions? I build custom AI chatbots trained on YOUR documents PDFs, websites, manuals so your business runs smarter, 24/7.
What I deliver:
RAG-powered chatbot that answers from YOUR data only
Built with LangChain, OpenAI or Groq LLM, and vector database
Accurate answers with source references no hallucinations
Deployable as web app, API, or embeddable chat widget
Supports PDFs, Word, CSV, URLs, plain text
Tech stack: Python | LangChain | FAISS | ChromaDB | Pinecone | OpenAI | Groq | FastAPI | Streamlit
BASIC Simple LLM chatbot, custom system prompt, Python script. 3-day delivery.
STANDARD Full RAG system, vector DB, up to 50 documents, API endpoint. 5 days.
PREMIUM Complete solution: RAG + API + chat UI + deployment guide + 7-day support. 10 days.
Use cases I cover: customer support bots, internal knowledge assistants, HR policy Q&A, product FAQ bots, legal document search.
Message me before ordering 5 minutes of conversation saves days of rework.
Get to know Sher J
Data Scientist, Generative Ai Expert, ML,DL, NLP, RAG, LLM, CV Expert
- FromPakistan
- Member sinceApr 2026
- Avg. response time1 hour
Languages
Urdu, English
My Portfolio
FAQ
Will the chatbot answer from my documents or from the internet?
Only from your documents. Using RAG (Retrieval-Augmented Generation) with a vector database, the chatbot retrieves answers strictly from your uploaded data. No random internet hallucinations.
Which file formats do you support?
PDF, Word (.docx), plain text, CSV, and website URLs. If you have another format, message me first.
Do I need my own OpenAI API key?
Yes, you will need your own API key (OpenAI or Groq I will guide you through setup). Alternatively, I can use free open-source LLMs if you prefer no ongoing API cost.
Can this chatbot be added to my website?
Yes. Standard and Premium include a FastAPI endpoint you can embed in any site. I provide integration code.
What if I need changes after delivery?
Every package includes revisions. Message me, I do not close a project until it works exactly as you need.
