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PRANJUL RATHOUR

GenAI Engineer & AI Product Builder | Generative AI • LLMs • RAG • AI Agents • Fine-Tuning • QLoRA/LoRA • Multimodal AI • LLM Evaluation • Computer Vision • AI Automation | Python • FastAPI • Next.js

What a confidence gate is, and why every RAG app needs one

What a confidence gate is, and why every RAG app needs one

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1 min read
Broadcom's up-to-$42B loan to Anthropic, explained

Broadcom's up-to-$42B loan to Anthropic, explained

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2 min read
QLoRA fine-tuning: a complete guide for students

QLoRA fine-tuning: a complete guide for students

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2 min read
Gemini 4 Argon: what Google just launched

Gemini 4 Argon: what Google just launched

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2 min read
Judge, mentor, or speaker — which one does your event actually need?

Judge, mentor, or speaker — which one does your event actually need?

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2 min read
How to evaluate a fine-tuned model honestly (base vs tuned)

How to evaluate a fine-tuned model honestly (base vs tuned)

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1 min read
On-device and browser AI: why it matters for privacy, not just speed

On-device and browser AI: why it matters for privacy, not just speed

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1 min read
My mentoring philosophy: create more than you consume

My mentoring philosophy: create more than you consume

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1 min read
Deterministic document extraction: why "AI reads your invoice" needs guardrails

Deterministic document extraction: why "AI reads your invoice" needs guardrails

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1 min read
Winning Changethon 2025 at IIT Roorkee with an AI agribot

Winning Changethon 2025 at IIT Roorkee with an AI agribot

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1 min read
Building a RAG app on a free-tier server: the memory-budget playbook

Building a RAG app on a free-tier server: the memory-budget playbook

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1 min read
Prompt injection vs memory poisoning: a practical guide for builders

Prompt injection vs memory poisoning: a practical guide for builders

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1 min read
Choosing an LLM provider: a decision framework

Choosing an LLM provider: a decision framework

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1 min read
How to Invite a GenAI Speaker to Your College

How to Invite a GenAI Speaker to Your College

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2 min read
Three First Prizes, One Loss

Three First Prizes, One Loss

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2 min read
1,211 Prompts, Every One Stamped

1,211 Prompts, Every One Stamped

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2 min read
7 Levels of RAG Apps

7 Levels of RAG Apps

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2 min read
5 Production AI Apps, All Open Source

5 Production AI Apps, All Open Source

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2 min read
15 Free Tools, No Signup, Every Link

15 Free Tools, No Signup, Every Link

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2 min read
15 Free Tools, No Signup, Every Link

15 Free Tools, No Signup, Every Link

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2 min read
Building your personal brand as a CS student

Building your personal brand as a CS student

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1 min read
Three times I didn't win first place (and what stuck more than the wins)

Three times I didn't win first place (and what stuck more than the wins)

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2 min read
NIMCET, placements, or a startup: choosing your Year 3

NIMCET, placements, or a startup: choosing your Year 3

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2 min read
How to start a tech community on your campus

How to start a tech community on your campus

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1 min read
Writing your first technical blog post: a template

Writing your first technical blog post: a template

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1 min read
Beating 15+ teams at BYTEBATTLE with Annapurna

Beating 15+ teams at BYTEBATTLE with Annapurna

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1 min read
Cold-emailing a mentor or speaker (and actually getting a yes)

Cold-emailing a mentor or speaker (and actually getting a yes)

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1 min read
From mentee to mentor to judge: a natural progression, not a hierarchy

From mentee to mentor to judge: a natural progression, not a hierarchy

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2 min read
Running a judges-only debrief right after the event: the fifteen minutes organisers skip

Running a judges-only debrief right after the event: the fifteen minutes organisers skip

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2 min read
Speaking about AI to non-engineering college audiences: what actually needs to change

Speaking about AI to non-engineering college audiences: what actually needs to change

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2 min read
What I wish someone had told me before my first hackathon judging gig

What I wish someone had told me before my first hackathon judging gig

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2 min read
Building a personal brand as a campus speaker, without it feeling like self-promotion

Building a personal brand as a campus speaker, without it feeling like self-promotion

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2 min read
Judging a hackathon where you're also personally sponsoring a prize

Judging a hackathon where you're also personally sponsoring a prize

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2 min read
How organisers should train first-time judges before the event, not during it

How organisers should train first-time judges before the event, not during it

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2 min read
Mentoring through open source: a different channel from talks and workshops

Mentoring through open source: a different channel from talks and workshops

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2 min read
Speaking at international student conferences remotely: what changes across borders

Speaking at international student conferences remotely: what changes across borders

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2 min read
Hackathon sponsors and judging: staying neutral when a sponsor's tech is on the table

Hackathon sponsors and judging: staying neutral when a sponsor's tech is on the table

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2 min read
Handling long-running AI agents: timeouts, checkpoints and partial progress

Handling long-running AI agents: timeouts, checkpoints and partial progress

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2 min read
Building an internal AI tool for your own team: a lower-stakes way to ship something real

Building an internal AI tool for your own team: a lower-stakes way to ship something real

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2 min read
Versioning prompts like you version code: a simple system that pays off fast

Versioning prompts like you version code: a simple system that pays off fast

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2 min read
Graceful degradation: what your app should do when the LLM provider is down

Graceful degradation: what your app should do when the LLM provider is down

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2 min read
Setting up cost alerts for AI APIs before the bill surprises you

Setting up cost alerts for AI APIs before the bill surprises you

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2 min read
Webhooks and async callbacks for AI pipelines: notifying instead of polling

Webhooks and async callbacks for AI pipelines: notifying instead of polling

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2 min read
Building a support-ticket triage system with an LLM: a project walkthrough

Building a support-ticket triage system with an LLM: a project walkthrough

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2 min read
Handling personal data (PII) in LLM applications without it leaking where it shouldn't

Handling personal data (PII) in LLM applications without it leaking where it shouldn't

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2 min read
A/B testing an AI feature: what to actually measure beyond click-through rate

A/B testing an AI feature: what to actually measure beyond click-through rate

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2 min read
Feature flags for AI features: rolling out a new model or prompt safely

Feature flags for AI features: rolling out a new model or prompt safely

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2 min read
Generating alt text with vision AI: a genuinely useful accessibility application

Generating alt text with vision AI: a genuinely useful accessibility application

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2 min read
Video summarization with vision-language models: what's actually feasible today

Video summarization with vision-language models: what's actually feasible today

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2 min read
Building a plant or object identifier app: a well-scoped vision project

Building a plant or object identifier app: a well-scoped vision project

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2 min read
Annapurna: from a 36-hour hackathon prototype to a real food-sharing platform

Annapurna: from a 36-hour hackathon prototype to a real food-sharing platform

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2 min read
Vision API costs: cloud vision APIs vs self-hosting a model, a real comparison

Vision API costs: cloud vision APIs vs self-hosting a model, a real comparison

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2 min read
Synthetic image data: when it's a legitimate fix for a scarce dataset

Synthetic image data: when it's a legitimate fix for a scarce dataset

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2 min read
Vision Transformers, explained for practitioners who just want to use one well

Vision Transformers, explained for practitioners who just want to use one well

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2 min read
Barcode and QR detection in noisy real-world images: what actually helps

Barcode and QR detection in noisy real-world images: what actually helps

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2 min read
Document tampering detection: what a vision model can and can't catch

Document tampering detection: what a vision model can and can't catch

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2 min read
Testing a vision model for bias across skin tones before you ship it

Testing a vision model for bias across skin tones before you ship it

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2 min read
Building a simple attendance system with face recognition: a project walkthrough

Building a simple attendance system with face recognition: a project walkthrough

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2 min read
Evaluating fine-tuning ROI: was the project actually worth the compute and time?

Evaluating fine-tuning ROI: was the project actually worth the compute and time?

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2 min read
Fine-tuning a vision-language model: what's different from fine-tuning a text-only LLM

Fine-tuning a vision-language model: what's different from fine-tuning a text-only LLM

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2 min read
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