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WebAI Badge Studio: Espruino at Google WebAI Summit featured image

WebAI Badge Studio: Espruino at Google WebAI Summit

How a 45-minute portrait queue turned into a live USB-C hardware hack, a bit-exact 96,000-byte 2bpp BWYR codec, surgical .bootcde firmware patching, and an open-source WebAI Badge …

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Rabimba Karanjai
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Racecraft: Fine-Tuning Gemma 4 with DPO for Sub-150ms On-Device Coaching at 130 MPH featured image

Racecraft: Fine-Tuning Gemma 4 with DPO for Sub-150ms On-Device Coaching at 130 MPH

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Rabimba Karanjai
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Racecraft: Tale of Car Sensors featured image

Racecraft: Tale of Car Sensors

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Rabimba Karanjai
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AEGIS-CHAOS: From 'Vibe Coding' to Closed-Loop SRE featured image

AEGIS-CHAOS: From 'Vibe Coding' to Closed-Loop SRE

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Rabimba Karanjai
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The Throughput Trap: Benchmarking vLLM on OpenXLA and the Reality of Production LLM Serving featured image

The Throughput Trap: Benchmarking vLLM on OpenXLA and the Reality of Production LLM Serving

vLLM Systems · DevLab 2026, Deep Dive I was recently invited by the Google TPU team to speak at the OpenXLA Summer DevLab 2026 . This post breaks down our deep-dive evaluation of …

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Rabimba Karanjai
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Splitting the Brain to Beat the Clock featured image

Splitting the Brain to Beat the Clock

How a "brake!" lands in 5 milliseconds while a cloud model thinks for five seconds — in the same app, on the same frame, without ever colliding.

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Rabimba Karanjai
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Teaching the Coach to Read the Driver featured image

Teaching the Coach to Read the Driver

The best instructors don't coach the car. They coach you , and they figure out who you are in about two laps. Here's how we taught software to do the same.

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Rabimba Karanjai
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The 800-Millisecond Problem featured image

The 800-Millisecond Problem

Why I stopped trusting every " AI race coach " I'd ever tried , and what it would take to build one I'd actually listen to at 130 km/h.

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Rabimba Karanjai
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Racecraft (Project Koru) · Prologue — The Origin Story featured image

Racecraft (Project Koru) · Prologue — The Origin Story

The origin story of Project Koru — building an AI Race Coach at Sonoma Raceway with Google Developer Experts, Antigravity, and Gemini.

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Rabimba Karanjai
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The Blind Spot Horizon: Why Your AI Benchmarks Are Lying to You featured image

The Blind Spot Horizon: Why Your AI Benchmarks Are Lying to You

"If you measure the wrong thing, you optimize for the wrong thing. And when dealing with frontier, multimodal models, the wrong thing might just break your entire system without …

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Rabimba Karanjai
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My Friend's MRI Didn't Come with a Manual, So I Built One with AI featured image

My Friend's MRI Didn't Come with a Manual, So I Built One with AI

The other was a flimsy paper sleeve containing a CD-ROM. This, we were told, held the actual images from her MRI scan. The ground truth. And we couldn't even look at it.

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Rabimba Karanjai
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The Hidden Performance Trap in Causal Ring Attention featured image

The Hidden Performance Trap in Causal Ring Attention

This post is a walkthrough of ring-flash-jax , a small JAX project that explores this problem and implements the fix. We'll add the four things you actually need before Ring …

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Rabimba Karanjai
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Unboxing Gemma: High-Throughput Sparse Autoencoder (SAE) Training on Google Cloud TPU v5e featured image

Unboxing Gemma: High-Throughput Sparse Autoencoder (SAE) Training on Google Cloud TPU v5e

A blog post about unboxing gemma: high-throughput sparse autoencoder (sae) training on google cloud tpu v5e

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Rabimba Karanjai
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The Gemma 4 E2B Fine-Tuning Cookbook featured image

The Gemma 4 E2B Fine-Tuning Cookbook

A complete, opinionated recipe for adapting Gemma 4 E2B to your domain — from multimodal dataset construction and QLoRA configuration through training loop debugging, evaluation, …

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Rabimba Karanjai
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Building a Multimodal Document Intelligence Pipeline with Gemma 4 E2B featured image

Building a Multimodal Document Intelligence Pipeline with Gemma 4 E2B

A production-grade walkthrough — PDF ingestion, OCR, audio transcription, structured reasoning, and agentic tool calling — all on a 2.3B parameter model that fits on a single …

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Rabimba Karanjai
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Write Once, Scale Everywhere featured image

Write Once, Scale Everywhere

End-to-End Gemma 2B LoRA Fine-Tuning and Serving on GPU & TPU If you have ever prototyped a Large Language Model LLM on your local GPU and then s......

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Rabimba Karanjai
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Visualizing the Invisible: How Nano Banana 2 Turns Dense Science into Stunning Art featured image

Visualizing the Invisible: How Nano Banana 2 Turns Dense Science into Stunning Art

Disclaimer: As a Google Developer Expert (GDE), I was incredibly fortunate to be invited by Google DeepMind to test these models internally before their public release. The …

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Rabimba Karanjai
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Fine-Tuning at the Redline: Architecting a Trustable AI Racing Coach featured image

Fine-Tuning at the Redline: Architecting a Trustable AI Racing Coach

" AI in a Jupyter notebook is safe. AI on a race track—at 150 mph—is a different story." - Ajeet Mirwani

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Rabimba Karanjai
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A Split‑Brain Neuro‑Symbolic Training Method for High‑Velocity Autonomous Coaching from Telemetry featured image

A Split‑Brain Neuro‑Symbolic Training Method for High‑Velocity Autonomous Coaching from Telemetry

A blog post about a split‑brain neuro‑symbolic training method for high‑velocity autonomous coaching from telemetry

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Rabimba Karanjai
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The Context Trap: Why Scaling Laws Can’t Break the Ceiling of Uncertainty featured image

The Context Trap: Why Scaling Laws Can’t Break the Ceiling of Uncertainty

We are currently living through the “ Post-Reasoning ” phase of the AI hype cycle. By now, models like Gemini 2.0 and the latest iterations of Gemini have normalized the idea that …

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Rabimba Karanjai
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Building Production AI Systems with Free Cloud GPUs featured image

Building Production AI Systems with Free Cloud GPUs

If you've been following my work on LLM-assisted code generation and AI reasoning , you know I'm always looking for ways to democratize AI development . During my recent work on …

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Rabimba Karanjai
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🎤 SpeakWise: Build an AI Public Speaking Coach with Gemma 3n featured image

🎤 SpeakWise: Build an AI Public Speaking Coach with Gemma 3n

Project by: Rabimba Showcase for: Google Developer Expert (GDE) AI Sprint

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Rabimba Karanjai
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From Models to Agents: Shipping Enterprise AI Faster with Google’s MCP Toolbox & Agent Development Kit featured image

From Models to Agents: Shipping Enterprise AI Faster with Google’s MCP Toolbox & Agent Development Kit

This article is an expanded write-up of the talk I recently delivered as a Google Developer Expert during a talk in Denver. The full slide deck is embedded below for easy …

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Rabimba Karanjai
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Deep Dive into the Google Agent Development Kit (ADK): Features and Code Examples featured image

Deep Dive into the Google Agent Development Kit (ADK): Features and Code Examples

In our previous overview, we introduced the Google Agent Development Kit (ADK) as a powerful Python framework for building sophisticated AI agents. Now, let's dive deeper into some …

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Rabimba Karanjai
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Build Smarter AI Agents Faster: Introducing the Google Agent Development Kit (ADK) featured image

Build Smarter AI Agents Faster: Introducing the Google Agent Development Kit (ADK)

The world is buzzing about AI agents – intelligent entities that can understand goals, make plans, use tools, and interact with the world to get things done. But building truly …

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Rabimba Karanjai
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My Google I/O 2024 Adventure: A GDE's Front-Row Seat to the Gemini Era featured image

My Google I/O 2024 Adventure: A GDE's Front-Row Seat to the Gemini Era

Hey tech enthusiasts! Rabimba Karanjai here, your friendly neighborhood Google Developer Expert (GDE), back from an exhilarating whirlwind tour of Google I/O 2024. Let me tell you, …

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Rabimba Karanjai
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MovieBuff: Dive Deeper into Movies with Generative AI featured image

MovieBuff: Dive Deeper into Movies with Generative AI

MovieBuff: Dive Deeper into Movies Before You Watch MovieBuff: Dive Deeper into Movies Before You Watch Have you ever spent two hours watching a movie only to be disappointed? …

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Rabimba Karanjai
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Curious case of Cisco AnyConnect and WSL2 featured image

Curious case of Cisco AnyConnect and WSL2

One thing Covid has taught me is the importance of VPN. Also one other thing COVID has taught me while I work from home  is that your Windows Machine can be brilliant  as long as …

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Rabimba Karanjai
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Immersive Payment: Second Update featured image

Immersive Payment: Second Update

This is the second update to the Immersive Payment project update under the Grant For Web Fellowship. You can read the last report here: …

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Rabimba Karanjai
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Immersive Payment: First Update featured image

Immersive Payment: First Update

It has been more than 6 months now that I have had the Immersive Payments, Spark Grant. Since then I have worked on realizing the scope of the project and finally, I am here to …

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Rabimba Karanjai
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Road to the Grant : Immersive Payment featured image

Road to the Grant : Immersive Payment

  This is a news close to my heart. My project "Immersive Payment" has been awarded with Grant for the Web , and I will be focusing on using Web Monetization to enable Micro …

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Rabimba Karanjai
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Attack of the Clones (Part 1): Drishti and vMeet featured image

Attack of the Clones (Part 1): Drishti and vMeet

Background : India recently banned certain Chinese Apps from being used and also with that launched a campaign of being vocal for local . Essentially promoting industries and app …

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Rabimba Karanjai
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Handling Web Server file permission: The Last Guide featured image

Handling Web Server file permission: The Last Guide

If you have to work with a LAMP stack one of the first things you do is setting up permission for your user and web server so that you can deploy files correctly and securely and …

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Rabimba Karanjai
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Help finding a cure for COVID19: Set up Folding@Home featured image

Help finding a cure for COVID19: Set up Folding@Home

COVID-19 has been already assigned as a pandemic worldwide now. It is now a global problem affecting all of our day to day lives. Almost all the methods of combating the virus at …

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Rabimba Karanjai
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Blocking Communication - Breaking Out featured image

Blocking Communication - Breaking Out

I disapprove of what you say, but I will defend to the death your right to say it If you have been following my previous post you will realize how quickly a state actor can just …

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Rabimba Karanjai
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Blocking Communication - A perspective from India : The Beginning featured image

Blocking Communication - A perspective from India : The Beginning

Update: If you want to know how to circumvent this kind of blocking. head over to my second part of the blog post.  If liberty means anything at all, it means the right to tell …

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Rabimba Karanjai
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Visualizing large scale Uber Movement Data featured image

Visualizing large scale Uber Movement Data

New York's cab data visualization from Uber's Engineering blog Last month one of my acquaintances in LinkedIn pointed me to a very interesting dataset. Uber's Movement Dataset. It …

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Rabimba Karanjai
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