Topics /

AI & Machine Learning

The most popular blog posts about ai & machine learning on Hacker News. 1,227 posts.

2025
546

Addendum to GPT-5 system card: GPT-5-Codex

This addendum to the GPT-5 system card shares a new model: GPT-5-Codex, a version of GPT-5 further optimized for agentic coding in Codex. GPT-5-Codex adjusts its thinking effort more dynamically based on task complexity, responding quickly to simple conversational queries or small tasks, while independently working…

559

GPTs and Feeling Left Behind

Every time that I read some blog post about “coding with AI”, or how cool new models write entire libraries by themselves, I feel like I’m lagging behind, like I’m missing out on some big, useful tool, and my skills are about to become obsolete very soon.

560

Measuring AI Ability to Complete Long Tasks

We propose measuring AI performance in terms of the length of tasks AI agents can complete. We show that this metric has been consistently exponentially increasing over the past 6 years, with a doubling time of around 7 months. Extrapolating this trend predicts that, in under a decade, we will see AI agents that can…

566

xAI dev leaks API key for private SpaceX, Tesla LLMs

An employee at Elon Musk’s artificial intelligence company xAI leaked a private key on GitHub that for the past two months could have allowed anyone to query private xAI large language models (LLMs) which appear to have been custom made for working with internal data from Musk’s companies, including SpaceX , Tesla and…