Y Combinator
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50:11Boris Cherny: Claude Code Ups Anthropic Productivity by 150%
Artificial IntelligenceBoris Cherny, creator of Claude Code, discusses its rapid evolution, driven by a philosophy of building for future AI models and continuous user feedb...
19:46Poetic AI: Recursive Self-Improvement for LLMs Outperforms Fine-Tuning
Artificial IntelligencePoetic AI introduces a recursively self-improving system that significantly outperforms traditional fine-tuning for large language models (LLMs) by ge...
39:36The Best Consumer Startup Ideas Were Impossible Until Now
BusinessAI is creating **unprecedented opportunities** for consumer startups by enabling previously **impossible product ideas** and increasing **retention fo...
38:47From Pivot Hell To $1.4 Billion Unicorn
BusinessPostHog, a YC unicorn, **pivoted multiple times** before finding product-market fit with **self-hosted product analytics**. The company rapidly scaled...
40:27Why Your Startup Website Isn't Converting
BusinessWebsite conversion directly correlates with **clear product communication**, **intuitive user experience**, and **judicious animation use**. Many star...
12:00How Intelligent Is AI, Really?
Artificial IntelligenceThe ARC Prize Foundation focuses on advancing **open progress** toward **generalizable AI systems**, defining intelligence as the ability to **efficie...
15:44Inside The Startup Building Reusable Rockets
BusinessStoke Space is developing **fully and rapidly reusable rockets**, including a groundbreaking second stage capable of surviving Earth re-entry, to **si...
5:42How To Get Your First Users
BusinessAcquiring first users for a new product necessitates finding **early adopters** or individuals with **urgent problems**, viewing this as a **search pr...
27:11The ML Technique Every Founder Should Know
Artificial IntelligenceDiffusion is a **fundamental machine learning framework** capable of learning any data distribution from high-dimensional data, even in low-data regim...
18:40How We Redesigned Our Website
BusinessThe YC website underwent a redesign to shift from a **utilitarian**, B2B SAS-like template to a more **inspiring**, **storytelling**, and **founder-ce...