Gabor Cselle
@gabor
@OpenAI / Prev: Building @southpkcommons. 3x startup founder (T2, Namo Media, reMail). Director at Google, PM at Twitter. YC W09
Dropped by my Alma Mater ETH Zurich for some quick chats. Two observations: 1. The student body is way more international today than when I was here 20 years ago 2. Everywhere you look there’s offers of startup funding (150k CHF in one image) or lists of successful spinoffs in…




Hello from Switzerland, just taking some work calls and then it’s back to vacation!

Very useful Cursor feature: "Completion sound." It plays a sound when the AI coding agent is done. In Cursor you can find this under Cursor settings > Chat > Completion Sound. Windsurf also has this, It's in Windsurf Settings > Enable Sounds for Cascade.

Always upsetting when SF freeway billboards don’t use programming best practices. This one works if you have a file named “vibes” but you should have given it an appropriate file name extension.

When you leave @ycombinator’s AI Startup School, this is what you see: Investors holding signs saying “I’m a VC come talk to me!”

Superb session with @Suhail on “What I would build if he were 20” at @ycombinator’s AI startup school.

The line for @ycombinator’s AI startup school is about a mile long this morning.



I really wonder if anyone ever calls the number on this @posthog billboard.

Waymos now have art on them … kinda reminiscent of Google Doodles.

Friday evening experiment: Firing up a bunch of empty GitHub repos, pointing Codex at them, then prompting the blank slate with some product ideas. Let’s see what it can do.
The newest generation models like GPT-4.1 etc. have become good at writing code to call themselves, and even do some prompt engineering. Older models used to make mistakes. Asking GPT-4.1 to write code to call GPT-4.1 with structured outputs and the like is not *quite*…