I will build a custom ai web app with openai API

T
thushanthan1202
T
thushanthan1202
Thushanthan
build a custom ai web app with openai API
Full Screen
build a custom ai web app with openai API

About this gig

Looking to launch a cutting-edge AI Web Application, Custom ChatGPT alternative, or AI SaaS platform? I build production-ready full-stack AI web applications using Next.js, Node.js, Python (FastAPI), and OpenAI / Claude APIs.


What I Can Build For You:

  • Custom AI Web Applications & SaaS platforms
  • ChatGPT-like conversational assistants with custom knowledge bases (RAG)
  • Multi-modal AI applications (Text, Image, Audio processing)
  • REST API & FastAPI backends connected to Next.js / React frontends
  • Integration of OpenAI (GPT-4o), Anthropic Claude, Gemini, or open-source Hugging Face models
  • Vector database setup (Pinecone, Supabase, Weaviate) for semantic search
  • Secure User Auth (Clerk, NextAuth, Supabase) & Stripe Subscription Billing


Tech Stack I Use:

  • Frontend: Next.js (App Router), React, TypeScript, Tailwind CSS
  • Backend: Node.js/Express, Python (FastAPI/Flask)
  • AI & DB: OpenAI API, LangChain, Pinecone, Supabase, PostgreSQL, MongoDB


Note: API usage costs (OpenAI, Pinecone, Vercel) are paid directly by the client under their own accounts. Please message me before placing an order so we can discuss your scope!

  • Application Type

    • Web Application

  • AI Type

    • Chat
    • Education
    • Social Networking
    • Entertainment
    • Finance
    • Travel
    • Lifestyle
    • Productivity Tools
    • E-commerce

  • Programming Language

    • JavaScript
    • Python
    • TypeScript
    • React
    • PyTorch
    • Tensorflow
    • SQL

  • Web Frameworks

    • React
    • Angular
    • Vue.js
    • Express.js (Node.js)
    • Django
    • Flask
    • Next.js

  • Desktop Frameworks

    • Electron
    • React Native for Web

  • No & Low-Code Builders

    • Lovable
    • Firebase Studio
    • Replit

Get to know Thushanthan

Thushanthan

Full Stack Web Developer , Software Developer , AI Integration Engineer

5.0(3)
  • FromSri Lanka
  • Member sinceDec 2022
  • Avg. response time1 hour
  • Last delivery3 years

  • Languages

    Tamil, Sinhala, English
Hi! I’m Thushanthan, a MERN Stack Developer with 3+ years of experience turning ideas into high-quality web applications. I specialize in building SaaS platforms, responsive web apps, and transforming Figma designs into fully functional applications. I’ve successfully delivered projects across industries like ecommerce, fintech, food delivery, healthcare, and travel, helping businesses scale and streamline operations. My focus is on clean, maintainable code, fast performance, and seamless user experiences, ensuring your vision becomes a reality.

My Portfolio

Related tags