Y Combinator

Y Combinator

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All the world is changing around technology and you may contribute a line of code. What will yours be? Subscribe for startup advice, founder stories, and a look inside Y Combinator. What is Y Combinator? We invest $500,000 in every startup and work intensively with the founders for three months. For the life of their company, founders have access to the most powerful community in the world, essential advice, later-stage funding and programs, recruiting resources, and exclusive deals. Visit ycombinator.com to learn more.

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Personal AI Is the New Personal Computer
41:30
Y Combinator Y Combinator

Personal AI Is the New Personal Computer

Y Combinator CEO Gary Tan details his return to software engineering after a 13-year hiatus, shipping hundreds of thousands of lines of code while running YC full-time by leveraging AI coding tools and developing "token maxing" methodologies that transform exhaustive research and development tasks into solo weekend projects.

1 day ago · 10 points
How Razorpay Became India’s Largest Payments Company
31:35
Y Combinator Y Combinator

How Razorpay Became India’s Largest Payments Company

Harshil Mathur recounts Razorpay's journey from a coding side project to India's largest payments platform, detailing their pivot from education to startups, the year-long regulatory wait that created competitive moats, and how surviving a bank crisis through radical customer transparency cemented their B2B trust foundation.

3 days ago · 9 points
Beyond Bigger Models: Recursion As The Next Scaling Law In AI
37:53
Y Combinator Y Combinator

Beyond Bigger Models: Recursion As The Next Scaling Law In AI

Recursion at inference time—rather than simply scaling model size—may be the next breakthrough in AI reasoning. Recent research on Hierarchical Reasoning Models (HRM) and Tiny Recursive Models (TRM) demonstrates that recursive architectures using shared weights can solve complex reasoning benchmarks like Arc Prize with minimal parameters, outperforming massive traditional LLMs.

8 days ago · 8 points
How to Build the Future: Demis Hassabis
40:57
Y Combinator Y Combinator

How to Build the Future: Demis Hassabis

Demis Hassabis predicts AGI by around 2030 and argues that while current large-scale pre-training and reinforcement learning form the foundation, breakthroughs in continual learning, memory consolidation, and introspective reasoning are still required to achieve true artificial general intelligence.

10 days ago · 8 points
The $9B startup that wants to create a billion new developers
39:12
Y Combinator Y Combinator

The $9B startup that wants to create a billion new developers

Replit CEO Amjad Msad explains how the $9 billion startup evolved from a browser IDE into an AI-native 'vibe coding' platform that eliminates traditional coding entirely, enabling non-technical domain experts to build production-grade software through natural language and visual interfaces.

14 days ago · 10 points
How Stripe Built Their New Website
43:37
Y Combinator Y Combinator

How Stripe Built Their New Website

Stripe Head of Design Katie Dill details the year-long process behind rebuilding Stripe's homepage after six years, shifting from a static payment-processor narrative to an interactive manifesto showcasing their full financial infrastructure platform through intentional UX, progressive disclosure, and meticulous animation craftsmanship.

17 days ago · 9 points
Robots Are Finally Starting to Work
49:27
Y Combinator Y Combinator

Robots Are Finally Starting to Work

Physical Intelligence co-founder Quan Vang explains why robotics is approaching its 'GPT-1 moment,' where cross-embodiment AI models trained on diverse hardware are beginning to exhibit emergent zero-shot capabilities and scaling laws previously unseen in the field.

23 days ago · 9 points
This Startup Secretly Detects Fraud For Fortune 500s
31:24
Y Combinator Y Combinator

This Startup Secretly Detects Fraud For Fortune 500s

Variance emerges from stealth with a $21 million Series A to scale AI agents that automate fraud detection and compliance for Fortune 500s like GoFundMe, replacing human analysts with self-healing systems capable of detecting complex abuse networks in real-time while processing petabytes of data with just five engineers.

about 1 month ago · 10 points
François Chollet: ARC-AGI-3, Beyond Deep Learning & A New Approach To ML
57:24
Y Combinator Y Combinator

François Chollet: ARC-AGI-3, Beyond Deep Learning & A New Approach To ML

François Chollet predicts AGI will arrive around 2030 but argues current deep learning is fundamentally inefficient; through his lab NDIA, he is pioneering symbolic program synthesis as a more optimal alternative focused on human-like skill acquisition efficiency, while acknowledging that LLM-based systems will first dominate domains with verifiable reward signals like coding.

about 1 month ago · 10 points
Agents For Non-Technical Users
39:33
Y Combinator Y Combinator

Agents For Non-Technical Users

Emergent founders Makund and Madav Jar discuss pivoting from enterprise testing tools to a consumer AI platform that enables non-technical users to build production-ready software, achieving 7 million apps built in 8 months by architecting proprietary infrastructure and hiding technical complexity.

about 2 months ago · 10 points
How To Build The Future: Max Hodak
53:21
Y Combinator Y Combinator

How To Build The Future: Max Hodak

Max Hodak argues that BCIs represent a fundamental shift from incremental biotech to a precise engineering paradigm capable of restoring senses and potentially extending human lifespan to centuries, with current technology already restoring vision to the blind and paving the way for cognitive enhancement.

2 months ago · 9 points
Common Mistakes With Vibe Coded Websites
37:27
Y Combinator Y Combinator

Common Mistakes With Vibe Coded Websites

AI coding tools have made professional web design accessible to everyone, but they've also accelerated the spread of visual clichés—like purple gradients and distracting hover effects—that prioritize technical impressiveness over brand distinctiveness and user experience.

2 months ago · 9 points