Browse categories
Explore
Fiverr Pro
English
$
USD
I will build rag pipeline or chatbot
Karn
About this gig
Turn your documents or website into a smart AI chatbot that actually knows your business not a generic ChatGPT wrapper that hallucinates.
I build production-grade RAG (Retrieval-Augmented Generation) pipelines and custom AI chatbots using modern, proven tools not no-code templates.
What I build:
- Chatbots answering from your docs/PDFs/database grounded, accurate, cited
- Full RAG pipeline: ingestion chunking embeddings vector database retrieval response
- Custom chat UI in React & Next.js widgets or standalone apps
- Orchestration with LangChain for reliable, multi-step retrieval
- Vector database setup Pinecone, Chroma, Weaviate, or pgvector
- Semantic caching to cut API costs and latency
- Hybrid search + re-ranking for higher accuracy
- Slack, WhatsApp, or website integrations
Tech: LangChain, OpenAI/Claude, vector DBs, React, Next.js, Python.
Working, deployable code with full ownership not a demo that breaks in production. Message me your use case for a custom quote.
Get to know Karn
Karn
AI Full Stack Developer with over 5 years of experience building SaaS
- FromIndia
- Member sinceFeb 2018
- Avg. response time1 hour
- Last delivery2 years
Languages
English
I build production web apps with AI. Over ~5 years I've shipped SaaS products end to end: Next.js/React + TypeScript front ends, Node.js/Express APIs, Postgres/MongoDB schemas, Stripe/subscription billing, auth.
On the AI side I've built RAG pipelines, vector search (Pinecone/LangChain), and structured-output LLM features with schema validation and retries — including an intent-routing chat layer that decides whether to run an action or answer from retrieval. Recent work includes a graph-based research tool and a Next.js + Supabase SaaS with AI processing and subscription billing.
My Portfolio
FAQ
Which AI model do you use — OpenAI, Claude, or something else?
Whichever fits your budget and use case (GPT-4/5-class models or Claude). I can also design the system to be model-agnostic so you can switch providers later without rebuilding the pipeline.
Do I need my own OpenAI/Claude API key?
Yes — you'll need your own API account since usage is billed directly by the provider based on your query volume. I'll help you estimate expected monthly cost during onboarding.
What's the difference between a "chatbot" and a "RAG pipeline"?
A basic chatbot just talks to an LLM. A RAG pipeline retrieves relevant information from your documents first, then feeds it to the LLM — so answers are grounded in your actual content instead of the model guessing.
Will I own the code?
Yes, full source code and ownership on every package — no vendor lock-in.
