AI Daily for 09 October: Invisible Cities Visualization, OpenAI Revenue Gap, OpenAI Math Withdrawals, Math Results Update

AI Daily: 5-Minute, best of Hacker News · Oct 9, 2026 · 6m

AI Daily for 09 October recaps 5 major AI Hacker News stories, moving through invisible cities visualization, openai revenue gap, openai math withdrawals, math results update.

Chapters

00:00:00 — Intro

00:00:17 — Invisible Cities Visualization

00:01:30 — OpenAI Revenue Gap

00:02:30 — OpenAI Math Withdrawals

00:03:39 — Math Results Update

00:04:48 — AI Planet Search

00:05:59 — Closing

1. Invisible Cities Visualization

The next story is a Quesma experiment in which Claude Opus 5.5 was given one prompt and six hours to build a Three.js visualization of all 55 cities in Italo Calvino’s Invisible…