Narendiran Chembu

Trying to understand this resplendent chaos called life. You can read more about me or check out my blog and projects

Latest writing

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Quantization - Four Bits and a Winter Coat

Cutting every weight from sixteen bits to four is nearly free. The handful of channels that shout a hundred times louder than the rest is what costs you.

GRPO and RLVR - The Answer Key and the Rank List

RLHF trained a model to mark the homework. RLVR checks the answer instead, and GRPO sacks the critic by grading every batch on a curve.

World Models - The Film Set That Never Runs Out of Street

Learned simulators generate the street instead of building it. Genie 3, Cosmos and GAIA-3 all look right, and looking right is the cheap part.

Speculative Decoding - Is Attention All You Really Need?

One token costs a full read of every weight in the model. Speculative decoding guesses eight, checks them in a single read, and changes nothing.

Selected projects

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Legal Research Assistant

On the cover: Legal Research Assistant Platform This project was delivered for MiAI.law, an Australian legal technology firm, to build a modern AI-driven system f...

AI-Driven Quantitative Risk Analysis

On the cover: Digitized Process Flow Diagram (PFD) with highlighted Elementary Process Sections (EPS) and graph This work was conducted at Saudi Aramco. The proje...