Ben Truscello

I used to work here now I do partnerships at @openai

[Ben Truscello @bentruscello]

Check out my BIL’s art https://t.co/mWJF1rbUxw

[Ben Truscello @bentruscello]

Stumbled onto this banger from Kin'Gongolo Kiniata https://t.co/zJCVsGDGXs

[Angad @angadsg]

Dropping the codex roadmap casually @thsottiaux
Full house in the audience @aiDotEngineer, everyone just waiting for their rate limits to be reset

[OpenAI @OpenAI]

Just gonna leave this here.

https://t.co/EOI980j9e9

[Ben Truscello @bentruscello]

Holy sheets

[ChatGPT @ChatGPTapp]

ChatGPT is now available as an add-on in Excel and Google Sheets.

It can help analyze messy data, write formulas, update spreadsheets, and explain what it’s doing along the way—without leaving your spreadsheet.

Powered by GPT-5.5.

https://t.co/XEH9AqKXnQ

[Gabriel Chua @gabrielchua]

Hi Singapore 🇸🇬, meet Codex 🩵

With Codex, ANYONE can build and create.
We’re turning that energy up this May.

We’re a diamond sponsor 💎 at @aiDotEngineer Singapore, at a bunch of events, and hosting sessions for builders at every level. Plus, @thsottiaux will be in town.

There's something for everyone:
> Intro workshops if you’re just getting started.
> Hack nights if you want to go deep & tokenmax
> Demo nights if you want to see what people are building.

May is going to be fun, and we're just getting started.

+++++++++++++++++
3 May: Emergency Codex Hackathon https://t.co/Mx4mQDUYs1 with @brianchew

4 May: Codex Hack Night - Design & Frontend https://t.co/le5ioJg3uP with @cleondesigns

5 May: Codex Demo Night - GPT-5.5 & ImageGen 2 https://t.co/sIXfx73Hzs with @Lorong_AI and @yongquanYQ

7 May: AI Engineer UnConference https://t.co/SRGP7cMIKH
No talk there, but I’ll be hanging out. Come find us.
Together with the @65labslah crew

9 May: AI Engineer Singapore Hackathon
Link is TBA
Together with the @65labslah crew

9 May: Codex workshop at The Good Hack https://t.co/MeMatjN5Il
Thanks for inviting us GoodHub SEA (Joanne Tan), Open Government Products

11 May: Codex Hack Night - Computer Use https://t.co/C1wJAB03yL
Together with @Lorong_AI and @yongquanYQ

13 May: Codex Hack Night - TBC 👀 https://t.co/I2mExOqAaV
Together with @Lorong_AI

TBA: Intro to Codex for Everyday Work - Workshop

15 May: AI Engineer Singapore - Codex Workshop

16-17 May: AI Engineer Singapore - Keynotes + Codex Booths

and more ...

[OpenAI @OpenAI]

Introducing GPT-5.5

A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done.

Now available in ChatGPT and Codex.

[OpenAI @OpenAI]

Made with ChatGPT Images 2.0

[OpenAI @OpenAI]

We’re updating our ChatGPT Pro and Plus subscriptions to better support the growing use of Codex.

We’re introducing a new $100/month Pro tier. This new tier offers 5x more Codex usage than Plus and is best for longer, high-effort Codex sessions.

In ChatGPT, this new Pro tier still offers access to all Pro features, including the exclusive Pro model and unlimited access to Instant and Thinking models.

To celebrate the launch, we’re increasing Codex usage for a limited time through May 31st so that Pro $100 subscribers get up to 10x usage of ChatGPT Plus on Codex to build your most ambitious ideas.

[Ben Truscello @bentruscello]

Congrats to PM Wong and the team at NSAS

[Lawrence Wong @LawrenceWongST]

Space — the final frontier. Our new National Space Agency begins operations today.

The global space industry is growing fast. While Singapore may not have launch sites, we have strengths in specialised, high-value areas — from satellites to advanced manufacturing.

[OpenAI Developers @OpenAIDevs]

GPT-5.4 can write Playwright code, read screenshots, and issue keyboard/mouse actions to operate computers.

You can steer its behavior and set custom confirmation policies for different risk tolerances.

On OSWorld-Verified, it achieves a state-of-the-art 75.0% success rate.

[Ben Truscello @bentruscello]

Just come by my neighborhood any Wednesday or Saturday to enjoy the Wolbachia release.

[Niko McCarty. @NikoMcCarty]

Here are more details on the Singapore mosquito paper.

The key result: Releasing bacteria-infected mosquitoes over large swaths of Singapore, twice weekly, led to a huge drop in dengue cases after 3 months.

The bacteria, called Wolbachia, naturally infect insects like bees and beetles. They do NOT naturally infect Aedes aegypti mosquitoes, which transmit Zika, dengue, and chikungunya.

A Wolbachia bacterium was found in a house mosquito (Culex pipiens) in 1924, though, and by the 1970s researchers figured out that these bacteria interfere with mosquito reproduction. Wolbachia were deliberately introduced into Aedes aegypti in 2006, with the first field releases of Wolbachia-infected mosquitoes happening in Australia in 2011. This Singapore paper isn’t a new idea.

Wolbachia-infected mosquitoes become infertile because the microbes enter cell nuclei and use proteins, called CifA and CifB, to mess with histones during sperm development. The sperm never develop properly so, when these infected males later mate, the female lays eggs that never hatch.

(Importantly, females only mate once, and it is also only females that bite humans. This is why the study releases MALE mosquitoes; so people don't complain about the government airdropping biting mosquitoes over their houses.)

For this paper, researchers divided Singapore into 15 clusters totaling ~724,000 people. Eight of those clusters had twice-weekly releases of Wolbachia-infected mosquitoes, and the other seven had no releases. They then tracked dengue infections.

After 6 months of releases, only 354 of 5,722 Dengue tests (6%) came back as positive in clusters with releases, compared to 1,519 of 7,080 tests coming back positive (21%) in the control clusters.

You could just irradiate males and release them (without the Wolbachia), and the U.S. government already does this to fight against screwworm invasions in Central America. X-rays alone are sufficient to make males sterile, but X-rays also damage somatic cells, meaning you have a higher likelihood that irradiated males will not “compete” as effectively for females. Wolbachia is better because it leaves fitness alone and targets sperm more directly.

It's also really expensive to make Wolbachia mosquitoes; about $5 per person for an urban study like this. This is because you not only need to separate mosquitoes by sex, but then you need to infect them with Wolbachia AND irradiate them, using x-rays, to make sure you sterilize any females that accidentally pass through the filter. Still, this is cost-effective at reducing disease transmission.

Another option is to release mosquitoes carrying gene drives. But that seems socially unpopular, and it’s tricky to guarantee the gene drive will never leak into the wild. So for now, Wolbachia seems like our best option, even though they need to be released constantly to keep mosquito populations low.

This paper is a very important, large-scale demonstration of bioengineering at scale!

[Ben Truscello @bentruscello]

@steipete @OpenAI @openclaw Welcome!

[OpenAI @OpenAI]

You can just build things.

[Ben Truscello @bentruscello]

🩺 ❤️

[OpenAI @OpenAI]

Introducing ChatGPT Health — a dedicated space for health conversations in ChatGPT. You can securely connect medical records and wellness apps so responses are grounded in your own health information.

Designed to help you navigate medical care, not replace it.

Join the waitlist to get early access.

https://t.co/MdpqDg7Ecg

[Ben Truscello @bentruscello]

Break It Yourself still sounds like what I imagine is a field recording from inside Andrew Bird’s head

https://t.co/VciRpUdVDB

[Ben Truscello @bentruscello]

Love this idea. Growing up w/ a single mum, my bro and I spent countless hours fixing whatever needed fixing - cars, bikes, Dell PCs. I didn’t realize then how much that shaped me. Maintenance of basic stuff taught me patience, curiosity, and laid the foundation of who I am today

[Stripe Press @stripepress]

In Maintenance: Of Everything, @stewartbrand encourages us to see our world through the lens of maintenance and repair.

Part One explores what we can learn from the maintenance of sailboats, motorcycles, cars, and weapons.

Preorder now: https://t.co/RqJ3EJh6Zn

[Ben Truscello @bentruscello]

Multi player AI is gonna be fun!

[OpenAI @OpenAI]

Group chats in ChatGPT are now piloting in Japan, New Zealand, South Korea, and Taiwan.

A new way to collaborate with friends, family, or coworkers and ChatGPT in the same conversation.

[OpenAI @OpenAI]

The Sora app is available in three more places, as shared by @sama.

1. Thailand

[Nick Turley @nickaturley]

Excited for our first DevDay Exchange event in India 🇮🇳 on November 4. Ahead of that, we have some exciting updates coming for India users over the next couple of weeks. Stay tuned!