Serge’s Substack

Serge’s Substack

Home
Notes
Archive
About
Where Gender Bias Grows: How AI Reveals the Rigid Stereotypes Shaping Our Stories
A fascinating study out of Cornell shines a bright light on something we usually sense but rarely measure: how the roles assigned to male and female…
 • 
Serge Bulaev
When More Thinking Makes AI Worse: The Paradox of Inverse Scaling in LLMs
Sometimes the things we take as gospel in AI turn out to be quietly wrong.
 • 
Serge Bulaev
𝐓𝐡𝐞 𝐁𝐫𝐚𝐢𝐧-𝐈𝐧𝐬𝐩𝐢𝐫𝐞𝐝 𝐌𝐢𝐧𝐢-𝐌𝐨𝐝𝐞𝐥 𝐁𝐞𝐚𝐭𝐢𝐧𝐠 𝐆𝐢𝐚𝐧𝐭𝐬 𝐚𝐭 𝐑𝐞𝐚𝐬𝐨𝐧𝐢𝐧𝐠
The Hierarchical Reasoning Model (HRM) is a 27 million parameter network, trained entirely from scratch on only 1,000 examples, outperforming models…
 • 
Serge Bulaev
From SEO to GEO: Why Winning the Next Wave of Commerce Means Optimizing for AI
Just when you thought you'd mastered SEO, a new revolution is here - Generative Engine Optimization (GEO) is rearranging the entire playbook on how…
 • 
Serge Bulaev
Inside the AI Mind: How Anthropic Built a Dashboard for AI Personality
Anthropic has learned how to build "persona vectors" for language models.
 • 
Serge Bulaev
How AI Models Actually "See" the World (And Why Your Prompts Should Match)
A fascinating study helps us understand how large language models (LLMs) and multimodal models (MLLMs) perceive real-world objects compared to humans.
 • 
Serge Bulaev
Simulated Minds, Real Gaps: What Stanford's GPT-4 Experiment Reveals About the Limits of AI in Social Science
Stanford researchers replaced human participants in 476 randomized controlled trials with GPT-4.
 • 
Serge Bulaev
Multi-Agent AI Systems: From Simple Prompts to Complete Books
This week, I watched a Python project take a single prompt and transform it into a 60-chapter draft novel with the precision and speed that would make…
 • 
Serge Bulaev
1
The Invisible Efficiency Engine: Why AI Pros Obsess Over Tokenization
Large language models never read words the way we do.
 • 
Serge Bulaev
How Generative AI Is Transforming Search Behavior
Why Gen Z Is Using AI Chatbots as Much as Google - and What It Means for the Future of Online Discovery
 • 
Serge Bulaev

July 2025

© 2025 Serge Bulaev
Privacy ∙ Terms ∙ Collection notice
Start writingGet the app
Substack is the home for great culture