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Bear blog of Andrej Karpathy, AI researcher. Started March 2025.

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The blog post discusses the differences between animal intelligence and large language model (LLM) intelligence, emphasizing that animal intelligence arises from evolutionary pressures for survival, social interaction, and multi-t...
2025 was a transformative year for LLMs, introducing RLVR, new application layers, and democratizing programming through 'vibe coding', while revealing the untapped potential of LLM technology.
The blog post compares AI to historical computing paradigms, emphasizing that AI represents a new computing paradigm focused on the automation of digital information processing. It introduces the concept of 'Software 2.0', where t...
The blog post discusses a podcast featuring Sutton, who critiques the prevailing views on large language models (LLMs) and their reliance on human-generated data. Sutton argues that LLMs are not truly 'bitter lesson pilled' due to...
A project using ChatGPT 5.1 to analyze and grade decade-old Hacker News discussions, highlighting the predictive power of LLMs and the importance of future accountability.
This guide outlines essential practices for maintaining chemical hygiene in daily life, emphasizing water filtration, air quality, food sourcing, and the use of natural materials.
The author discusses the development of an app called MenuGen, which generates images of menu items when a picture of a menu is taken. The app was developed using vibe coding and the author shares their experience with the process...
The text discusses the unique impact of LLMs on technology diffusion, highlighting how they disproportionately benefit individuals compared to corporations and governments. It explains the reasons behind this phenomenon and explor...
The author conducted a comprehensive tracking project to compare 4 major sleep tracking devices - Whoop, Apple Watch + AutoSleep, Oura, and 8Sleep Pod 4 Ultra. After 2 months of data collection, the author found that Oura and Whoo...
The author discusses an approach to note-taking called the append-and-review note, which involves maintaining a single text note and adding ideas or to-dos to the top of the note, then reviewing and rescuing important items to the...
The text discusses the importance of digital hygiene for privacy and security in day to day computing, covering topics such as password management, hardware security keys, biometrics, disk encryption, internet of things, messaging...
The author expresses his love for calculators, highlighting their simplicity and efficiency compared to modern technology. He questions the increasing complexity and user-hostile nature of modern technology and suggests that consu...