I will develop custom rag chatbot with langchain openai vector database


About this gig
Searching through hundreds of documents manually wastes time and kills productivity. Your team needs instant, accurate answers from internal data but regular chatbots cant access your private information.
I will build a custom RAG (Retrieval-Augmented Generation) chatbot that connects AI directly to your documents, databases, or websites, delivering precise answers with source citations in seconds.
What you get:
Intelligent document ingestion (PDFs, websites, databases)
Semantic search using vector embeddings
Smart retrieval system built with LangChain
OpenAI model integration for accurate responses
Vector databases like Pinecone, Chroma, or FAISS
Conversation memory for natural interactions
Perfect for:
Customer support teams
Sales & proposal assistants
HR policy chatbots
Research & internal knowledge bases
Why this is different:
Trained ONLY on your data, not generic internet info
Source-backed answers for trust & verification
Production-ready, scalable architecture
Clean, documented code you fully own
Stop searching documents manually.
Start getting instant answers from your business knowledge.
Message me before ordering to discuss your data and use case.
Get to know Muhammad Hassan
Turning Passion for Code into Professional Excellence
- FromPakistan
- Member sinceMar 2022
- Avg. response time1 hour
- Last delivery8 months
Languages
Urdu, English
My Portfolio
FAQ
How is this different from normal chatbots?
Regular chatbots give generic answers. RAG chatbots retrieve answers directly from your documents, with source citations.
What ongoing costs should I expect?
OpenAI usage-based pricing applies. Vector DBs like Pinecone are paid; Chroma/FAISS can be free self-hosted.
Will I own the code?
You receive full source code with documentation — 100% ownership.
How accurate is the chatbot?
Properly configured RAG systems reach 85–95% accuracy, depending on data quality.
Can it scale and support multiple languages?
Yes. The architecture supports high traffic and OpenAI supports 50+ languages.

