Build Custom GPT for Document AI Using LangChain & FastAPI

Build Custom GPT for Document AI Using LangChain & FastAPIBuild Custom GPT for Document AI Using LangChain & FastAPI

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Amarta Waghani

• 21h

Did you know you can build a custom GPT that answers based on your own data?

I’ve built a Document AI system that can read and respond directly from your PDFs.

It’s powered by a RAG (Retrieval-Augmented Generation) system using LangChain, FastAPI, and Streamlit.

Where can this be used? • Website chatbots • Automated customer support systems • Internal knowledge assistants • Compliance and policy assistants

Turn your documents into an intelligent system that delivers accurate, context-aware answers.

AI Chatbot Development AI Engineer ChatGPT FastAPI LangChain

Akshat Sharma

• Apr 17

We’re entering a phase where AI products won’t win just because of the tech…

They’ll win because of distribution.

At Kokorick, we’re focused on one thing: Turning AI tools into growth engines.

With Warmo, it’s not just about sending emails— it’s about building a system that learns: • Who converts • What messaging works • Which audiences actually respond

The real moat isn’t the model. It’s the data you collect over time.

That’s where things get interesting.

#AIGrowth #StartupGrowth #GrowthStrategy #AISaaS #LeadGeneration #EmailOutreach #Automation #BuildInPublic

ai growth strategy AI Development AI Engineer ChatGPT Node.js

JAMIYU USMAN

• Apr 17

From Concept to Cravings: AI-Driven Food Commercials 🍔

Body: I recently experimented with combining high-fidelity AI video generation and motion graphics to create this 10-second spot. My goal was to maintain visual consistency—from the steam on the chicken to the lighting on the talent—while keeping the energy high.

AI Art Prompt Writing AI Engineer CapCut FlowFi ImagineCreate AI

Muhammed Akintomiwa

• Apr 17

Nice ai video

Kenula Rathnayake

• Apr 17

Document AI — Chat With Any PDF (RAG System)

Built a full RAG (Retrieval-Augmented Generation) system that lets users upload any PDF and ask questions in natural language. Uses OpenAI embeddings, FAISS vector search, and GPT-4o-mini for accurate, sourced answers. Live demo available.