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@iamharsh

Harsh Prajapati

@iamharsh·Joined June 2026

Software Developer at Dentsu | Full Stack Developer | MERN | Next.js | AWS

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Software Developer at Dentsu | Full Stack Developer | MERN | Next.js | AWS

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Harsh Prajapati's blogs

Harsh Prajapatiharsh-prajapati.hashnode.dev2 posts

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Software Developer at Dentsu | Full Stack Developer | MERN | Next.js | AWS

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Nothing here yet.

Harsh Prajapati's blogs

Harsh Prajapatiharsh-prajapati.hashnode.dev2 posts

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HPHarsh Prajapatiinharsh-prajapati.hashnode.dev·Jul 19 · 11 min read

Where RAG Fails: Understanding the Limitations

If you've spent any time in the Generative AI space over the last couple of years, you've heard the term RAG — Retrieval-Augmented Generation — thrown around as the fix for almost every LLM problem. N

HPHarsh Prajapatiinharsh-prajapati.hashnode.dev·Jul 1 · 5 min read

How LLMs Actually Work: An Architecture Walkthrough for Developers

If you've spent years building REST APIs, microservices, or backend systems, you've internalized one core principle: given the same input, your application should produce the same output. Traditional