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I will build a custom rag ai chatbot with langchain and openai
Abdur Rehman
About this gig
Need an AI chatbot that answers from your own business data instead of making things up?
I will build a custom RAG AI chatbot using LangChain, OpenAI, Claude, Gemini, or Llama that delivers accurate, context-aware responses from your PDFs, documents, website, Notion, Google Drive, databases, or other knowledge sources.
Perfect for businesses, SaaS products, customer support, internal knowledge bases, and AI assistants.
What you'll get:
Custom RAG AI Chatbot
LangChain & OpenAI Integration
Knowledge Base Setup
PDF, Website & Document Training
Pinecone, ChromaDB, FAISS or Supabase Vector DB
FastAPI Backend & React/Next.js Integration
API & Website Integration
Source Code
Deployment Support
I build scalable, production-ready AI solutions focused on speed, accuracy, and user experience. Every chatbot is tailored to your business needs and designed for reliable responses with minimal hallucinations.
- Message me before placing your order so we can discuss your project and choose the best RAG architecture for your business.
Get to know Abdur Rehman
Abdur Rehman
AI Automation Specialist n8n, Make, Zapier OpenAI RAG Chatbots
- FromPakistan
- Member sinceJul 2025
- Avg. response time1 hour
Languages
English, Arabic
I build AI automation systems that save businesses 10+ hours/week using n8n, Make, and Zapier workflows. Specialized in multi-agent AI systems, RAG chatbots, and OpenAI / Claude API integrations.
What I deliver:
→ Custom n8n automation workflows for service businesses
→ RAG chatbots with PDF/document knowledge base
→ AI agents with tool use & memory (LangChain, OpenAI)
→ Zapier & Make automations with API integrations
→ CRM & business process automation
1.5+ years building automation systems for i
nternational clients. Fast delivery. Clean documentation.
My Portfolio
FAQ
Can the chatbot answer using my own documents?
Yes. I can build a RAG chatbot that answers from your PDFs, Word files, websites, Notion, Google Docs, databases, or other business knowledge. Instead of relying on general AI knowledge, it retrieves information from your own data to provide more accurate and relevant responses.
Which AI models do you support?
I work with OpenAI (GPT), Claude, Gemini, Llama, DeepSeek, and other compatible LLMs. I'll recommend the best model based on your project requirements, budget, and performance goals.
Can you integrate the chatbot into my existing website or application?
Yes. I can integrate the chatbot into existing websites, SaaS platforms, React, Next.js, WordPress, Shopify, or custom web applications. If your platform has an API, integration is usually possible.
Can the chatbot be connected to WhatsApp, Slack, Discord, or CRM systems?
Yes. I can integrate your chatbot with platforms such as WhatsApp, Slack, Discord, GoHighLevel, HubSpot, and other tools that provide APIs. If you have a specific integration in mind, just let me know before ordering.
I'm not sure if RAG is the right solution for my project. What should I do?
No problem. Send me a message with your idea or business use case before placing an order. I'll help you determine whether a RAG chatbot, AI agent, or another AI solution is the best fit. If RAG isn't the right choice, I'll tell you honestly instead of recommending something unnecessary.
