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Pranshu Bansal
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WRITING / IDEAS / EXPLAINERS

Notes from the work, out in the open.

Technical write-ups, community notes and video experiments about what I'm building, learning and questioning along the way.

FEATURED ARTICLE / TOWARDS AI

A closer look at the method.

Diagram of dense and sparse retrieval combined with reciprocal rank fusion

SEARCH / ENGINEERING / EXPERIMENT

I combined dense and sparse vectors to search medical research.

A reproducible comparison of dense semantic search, sparse BM25 and reciprocal-rank fusion over 12,868 PubMed titles and abstracts from the TREC 2018 precision-medicine pool. Embeddings caught meaning, BM25 preserved exact terminology, and reciprocal-rank fusion brought the signals together.

12,868PubMed records
5zero-hit queries with hybrid ranking

SHORTER NOTES / SHARED IN PUBLIC

LinkedIn posts.

Field notes from building software, using AI thoughtfully and bringing developers together.

Video thumbnail for Pranshu's hybrid search explainer

ENGINEERING

When meaning isn't enough for search

What changed when medical retrieval had to preserve exact terms as well as semantic similarity.

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Code running on a laptop beside a music screen

AI + LEARNING

AI should keep you in the learning process

A note from hackathon mentoring: review, debugging and ownership should stay with the learner.

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Video thumbnail for a two-model coding comparison

MODEL TEST

One racing-game prompt, two models

A deliberately small GPT-5.6 versus GPT-6 Astra experiment—not a benchmark.

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Screenshot shared with Pranshu's building-in-public post

BUILDING IN PUBLIC

Post the experiment

The model comparison unexpectedly crossed 100K views; a reminder that finished and shared beats over-polished.

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Video thumbnail from Pranshu's AI filmmaking post

CREATIVE AI

AI video still needs a point of view

Tools can produce frames; story, direction, pace and reference choices still belong to the maker.

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HACKATHONS

What hackathon demos don't tell you

Looking beyond a polished demo to whether a team understands what it built.

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PERSONAL NOTE

Remembering why I started building

A reflection on ambition, pressure, and finding enjoyment in software again.

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PERSONAL NOTE

Does the code still feel like mine?

From hand-written code notes to AI-assisted development, and the desire to understand the code.

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WATCH THE IDEAS IN MOTION

Video & demos.

Short visual explanations and creative experiments shared with the developer community.

LET'S MAKE SOMETHING PEOPLE WANT TO JOIN

Have a project in mind?

Events, developer stories, product launches, or a new idea still taking shape.

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