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Companies, products, experiments and writing by Talvinder Singh.
Author

B. Talvinder

Builder · Bengaluru · Since 2007

I make things and put them out into the world.

Some become companies. Some stay small. Each one teaches me what to make next.

See what I’m building ↓

Now

What I’m building

Companies I run and products I’m putting into people’s hands.

Companies

01Zopdev

Cloud software for engineering teams.

Company · Current↗
02Ostronaut

Turns conversations on the floor into evidence a business can use.

Company · Building↗
03Pragmatic Leaders

Helps people build the judgment to lead products well.

Company · YC W21 · Coming soon↗

Products

04Pomelo

A recorder that helps you remember what mattered.

Private beta · iPhoneSoon
05Diagrams for Agents

Helps AI agents explain things visually.

Agent tool · Live↗
06P.I.G.E.O.N.

Sends you somewhere worth seeing on the open web.

Internet discovery · Live↗
07PlateLicker

Find the meal worth choosing and get a useful site for every restaurant it recommends.

Food discovery · Live↗
08Elsewhere

Lets work move beyond the machine in front of you.

Open source · Alpha↗
09SourceFoundry

Keeps sources fresh for agents and applications.

Open source · Live↗
10Hukam

A private daily Gurbani reading and reflection practice.

Mac + iPhone · Early release↗
11Side B

A place for people who listen to music with intent.

Music · Shaping↗
There is more, including smaller projects and experiments.See the complete work index ↗

Before

Things I built before

Education · First companyDigital PACEPast Travel · 500 StartupsTushky2011—2015 Travel · Product chapterOYOPast

Writing

What I’ve learned while making things

Selected essay · AI systemsThe Model Is the Easy Part

The six unseen layers that decide whether an AI system survives real users.

Read ↗
Ideas that held upFrameworks↗ Notes from the workBuild logs↗ Stories from the roadField notes↗
Title Date
LangGraph vs CrewAI vs AutoGen: Why Multi-Agent AI Fails on Coordination, Not Capability Jul 9, 2026
RAGs Are Only as Strong as Their Validation Layers Jul 2, 2026
Customization-Scale Paradox Explains Why Vibe Coding Won’t Scale Jul 2, 2026
How We Cut LLM Costs 80% May 11, 2026
How to Monitor AI Agents in Production May 3, 2026
Agentic AI Is Killing Per-Seat SaaS May 3, 2026
The $33B Vertical SaaS Opportunity India Keeps Missing May 3, 2026
Training AI to Serve Rare Disease Patients Is a Structural Problem, Not a Data Problem Apr 17, 2026
The Vibe Coding Hangover: Why AI-Written Code Costs 4x to Maintain by Year Two Apr 3, 2026
The Recourse Trap: Why Competition Makes Credit Scoring More Exclusive, Not Less Apr 3, 2026
Why 86% of AI Agent Pilots Fail Before Reaching Production Apr 3, 2026
I Built Ed-Tech Before Ed-Tech Existed in India Apr 2, 2026
I Built an Experiences Marketplace Five Years Before Airbnb Experiences Apr 2, 2026
The OYO Pivot: When Marketplaces Should Own the Supply Apr 2, 2026
Point-of-Need Learning: Why Application Beats Credentials Apr 2, 2026
The IRL Growth Bet: Why I Started an Offline-First Music Community in the Age of Algorithms Apr 2, 2026
Framework Lag: Why the Winners of 2010-2015 Could Explain Network Effects Before VCs Had Words For It Apr 2, 2026
Device-Level Blocking Won’t Stop Digital Arrest Scams — The UI Is the Real Vulnerability Mar 22, 2026
Model Routing Is the New Unit Economics Mar 22, 2026
We Were Running AI Agents Before ‘Agentic’ Became a Buzzword Mar 20, 2026
The Pass@k Trap: Why Running Your AI Agent 3 Times Makes Answers Worse Mar 19, 2026
AI Is Making Your Team Slower — The Math Your CEO Won’t Show You Mar 18, 2026
Chain-of-Thought Has an Efficiency Tax Mar 18, 2026
AI-Generated Code Is Flooding GitHub — Here’s What It Costs You Mar 16, 2026
What Zari-Zardozi Teaches Us About Agent Coordination Mar 16, 2026
Zimbo Meetings and the Ghost Work Tax Mar 16, 2026
Why LLM-as-Judge Fails in India: The $0.03 Evaluation That Costs You Customers Mar 5, 2026
India’s Federated Learning Bet Is a $100M Category Error Mar 5, 2026
Distress Detection Is a Switching Cost, Not a Safety Feature Mar 4, 2026
Why Indian SaaS Companies Will Win the Agent Reliability War Mar 4, 2026
Why We Built an Agentic Rightsizing System Instead of Using Existing FinOps Tools Feb 10, 2025
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    © 2026 B. Talvinder

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    B. Talvinder is a serial founder (ex-OYO, YC, 500 Startups) who has built four companies across four different technology eras in eighteen years. He writes about AI, infrastructure, and the India tech ecosystem at talvinder.com.

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