The daily ledger

When Labels Say No, But Embeddings Say Yes

Why traditional retrieval metrics miss meaningful similarities The post When Labels Say No, But Embeddings Say Yes appeared first on Towards Data Science.

Difference-in-Differences vs Lagged-Outcome Regression

A simulation study and a pre-period check for choosing the right design for self-selected treatments in product analytics. The post Difference-in-Differences vs Lagged-Outcome Regression appeared first on Towards Data…

Is the #1 AI Model Really #1?

On a 2,000-question test, my top two models couldn't be told apart at the usual 5% level. On a 200-question version, a different model would have taken first place about three times in ten. The post Is the #1 AI Model…

What Is Harness Engineering? A Hands-On Introduction

Learn three essential primitives of harness engineering to future-proof your career The post What Is Harness Engineering? A Hands-On Introduction appeared first on Towards Data Science.

😸 New York curbs AI chatbots for kids

Google’s Gemini 4 Carbon Can Find and Exploit Software Flaws. Who Gets Access?

Gemini 4 Carbon can find software flaws and test their exploitability, but Google is limiting early access to selected defenders. Its rollout will test whether a head start leads to faster repairs, while independent…

Could Your Next Manager Be AI? OpenAI Researchers Think It's Possible

OpenAI researchers envision AI supervising employees and advising executives. The effect on workers would depend on who controls evaluations and how employees can challenge mistakes.

Everything That Happened in AI Today (Thursday, October 29, 2026)

Google introduced Gemini 4 Carbon for cybersecurity work, a family sued OpenAI over medical advice, and GitHub reported a surge in AI-drafted code. OpenAI also prepared an election monitoring center ahead of the U.S.…