Ben Lesh

#RxJS core team lead. Dad. Art Lover. Literally not paid by the observable, or for anything RxJS-related. My views actually belong to @_jayphelps. he/him

[Ben Lesh @BenLesh]

Really proud to show off the 3D dungeon game I built for @OpenAI using Codex, GPT 5.5 (and 5.4) and new plugins/skills I worked on. This game was created in about 2 work days, including art and audio, etc. This doesn't even show all of the dev tools that are built in.

[corey.ching @coreyching]

GPT-5.5 is here - two demos I wanted to share and are featured in the launch post.

One is a playable 3D dungeon arena prototype built with Codex and GPT models — from game architecture and combat systems to HUD feedback, environment textures, and character dialogue.

The other is an interactive visualization of live USGS earthquake data, combining a global map, timeline, and depth profile to explore recent seismic activity.

Fun launch, checkout out more in our official blog ➙

[Ben Lesh @BenLesh]

@bzdyelnik @kitvolta What about The Kicks? Or The Knucks? Kninks?

[Ben Lesh @BenLesh]

I can't unsee it. Adam22 is evil-alternate-universe @mhevery

Movie promo voice: "In a world without Angular..."

[Ben Lesh @BenLesh]

@kenwheeler Wait... I know why he looks familiar. It looks like @mhevery if Misko spent time in prison.

[Ben Lesh @BenLesh]

@kenwheeler Wait... I know why he looks familiar. It looks like @mhevery if Misko spent time in prison.

[Ben Lesh @BenLesh]

@kenwheeler I have no idea who either of these two people are. But I'm almost positive I've told that guy I don't need my windshield washed at the corner of Chavez and Riverside.

[Evan You @evanyou]

I've left most of what I want to say in the VoidZero blog post. But worth repeating:

Thank you @voidzerodev team for trusting me and joining me on this wild ride. I am very proud to have assembled such a talented team and even prouder of what we have built together.

Thank you all our investors for believing in my vision, in particular @caseyaylward from @Accel who led both our Seed and Series A.

Thank you the @vite_js community. Vite and VoidZero wouldn’t have come this far without your trust and support. We will continue building with all of you, together, in the open.

And thank you to everyone that made this happen at @Cloudflare. Looking forward to working with you all!

https://t.co/0ly53VCOSr

[Polymarket @Polymarket]

NEW: AI consultant reveals a client accidentally spent $500,000,000.00 in a single month after failing to set employee limits on Claude usage.

[Justine Moore @venturetwins]

Me using Claude Opus 4.8 to rename a file

[Ben Lesh @BenLesh]

@jayphelps I love that the translate automatically showed me this hahahahaha

[Ben Lesh @BenLesh]

@tomcritchlow @itsbdell High praise, thank you.

[Ben Lesh @BenLesh]

@kenwheeler @hicsfh @ashleyhindle I leveraged the image generation ability to iteratively design data visualizations as images before implementation. So. Kinda?

[Tracy Lee | ladyleet @ladyleet]

This has been such a fun project to be a part of! So excited about all the work @benlesh has been doing with @thisdotlabs and @openai!

[Ben Lesh @BenLesh]

12/ It’s been fun working with @OpenAI at @ThisDotLabs.

This project sits right in my lane: AI, TypeScript, and data visualization. It’s been a blast turning that overlap into something OpenAI and Codex can actually use.

[Ben Lesh @BenLesh]

1/ At @ThisDotLabs, I built a Codex Plugin, called Build Web Data Visualization with DevEx Lead @coreyching from OpenAI.

With this plugin, Codex uses image gen to design the app and then implements it really well. See the examples below. Claude can’t do this!🧵

[Ben Lesh @BenLesh]

11/ Final clip: A geospatial visualization with a lot of features cooked up in a few hours!

The thing I’m hyped about: Codex can now help think visually before it builds visually.