Prashant Goela

[Andrej Karpathy @karpathy]

This is a super exciting release - Claude Fable 5 is the same underlying model as Mythos but with added safeguards. The benchmarks are great and it's SOTA on everything by a margin but I'll add that *qualitatively* also, this is a major-version-bump-deserving step change forward (imo of the same order as Claude 4.5 was in November), peaking especially for long problem-solving sessions on very difficult problems. You can give it a lot more ambitious tasks than what you're used to, the model "gets it" and it will just go, and it's never felt this tempting to stop looking at the code at all (but don't do this in prod!). The model still has quirks that people will run into and the safeguards are configured to be a little too trigger happy for launch, which can hopefully be tuned over time.

I feel a lot of things changing as working software increasingly comes out on a tap. The Jevon's paradox kicks in and I feel my own demand for software growing substantially. You can ask for anything - explainers, visualizers, dashboards, bespoke single-use apps (e.g. a full wandb that is hyper-specific just for your project), you can 10X your test suite, auto-optimize code, run giant research projects with custom HTML for the results, anything! "Free your mind" (Matrix ref). Really looking forward to all the things people build!

[Andrej Karpathy @karpathy]

Personal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.

[Patrick Collison @patrickc]

@tobi Two weekends ago, I asked Claude to train a weather forecasting model on 6+ years of historical data I had. After training initial model, I had it generate hypotheses for how to improve the architecture, test them, and then integrate learnings. Worked great. RSI is totally here.

[Boris Cherny @bcherny]

I'm Boris and I created Claude Code. Lots of people have asked how I use Claude Code, so I wanted to show off my setup a bit.

My setup might be surprisingly vanilla! Claude Code works great out of the box, so I personally don't customize it much. There is no one correct way to use Claude Code: we intentionally build it in a way that you can use it, customize it, and hack it however you like. Each person on the Claude Code team uses it very differently.

So, here goes.

[Stripe @stripe]

We built a machine to track Black Friday/Cyber Monday on Stripe.

Explore real-time data all weekend: https://t.co/67Jw9zaOpQ.

[David Singleton @dps]

This Black Friday–Cyber Monday on Stripe, we saw >$18.6B in transaction volume and a peak of 27,395 requests per second—with >99.999% API uptime. More recap stats: https://t.co/5klY28facd.

Here's a video showing what our live dashboard looked like over the weekend.

[Patrick Collison @patrickc]

Stripe, live: https://t.co/CtyT1XIhrL.

[David Singleton @dps]

We overhauled https://t.co/cd8pLCh5kj.

Many of you asked for more granular data by product area (instead of just the API or Checkout)—we've added it.

You also asked for additional ways to get updates (beyond RSS and @X). Now, you can subscribe via email, text, and @SlackHQ.

[Vivek Sharma @pucknorris]

In my role at @Stripe, I spend a lot of time listening to customers. And I hear from so many of you about the pain that comes from maintaining and connecting multiple systems to keep finance and revenue operations running. 1/

[Will Megson @willmegson]

📡 @stripe Radar assesses >1,000 characteristics of a transaction to determine the likelihood it’s fraudulent—making a decision in <100 milliseconds.

Out of billions of legitimate payments, Radar now incorrectly blocks only 0.1%...and it’s getting more precise every day

[David Singleton @dps]

Black Friday/Cyber Monday [BFCM] is a big deal for our users. So it’s a big deal for @stripe too.

We handled billions of $s in sales each day of BFCM. A 5 minute downtime = tens of millions in lost revenue for our users.

Here's how we achieved >99.9999% uptime. 👇

[Patrick Collison @patrickc]

Congratulations to the Stripe infrastructure teams! With record scale, Black Friday and Cyber Monday passed uneventfully. >20,000 peak RPS and >99.9999% API success rate.

[Rebecca Murphey @rmurphey]

In the last 9 months, working with leaders in the @stripe Developer Productivity org, I advocated for and established a team and a measurement framework to understand and improve the software engineering experience at @stripe.

[Daniel Doyon @deadly_onion]

i don't read physical books (obvi) so i need to give away this hardcopy of Building a Second Brain by the inimitable @fortelabs

i'll throw in some @readwise holographic stickers and a v2 tee as a bonus😛

retweet if interested and i'll pick someone at random in 2 days (july 6)

[Jamie Wright @jwright]

👋 In February, @stripe approached my client and had asked if we were interested in building for Stripe what we had built on Slack’s platform. 1/20

[Kenneth Auchenberg 🛠 @auchenberg]

Today we are launching the public beta of Stripe Apps, a new way for developers to extend @stripe and build on top of our platform.

Some background on why we built Stripe Apps, what our platform enables you to build, and where we are headed.

🧵

[John Collison @collision]

This year's Forrester Wave just dropped! Stripe has been named a leader with top marks for product offering and strategic vision.

Learn more about what we're up to on Tuesday: https://t.co/Hx0OdxZxcy

[Stripe @stripe]

Introducing Stripe Data Pipeline—with a few clicks, sync your Stripe data and reports with @AWScloud Redshift and @snowflakedb. 📊🔄 https://t.co/3ELDub5Qz0

[Dmitry Petrashko @darkdimius]

#Ukraine needs medical supplies for civilians. Currently there isn't enough supply and money can't buy something that isn't there.

Trucks from Italy, Germany and Switzerland will be bringing supplies soon. Find how you can help in https://t.co/7BwTp86L2T.
#UkraineRussiaWar

[Chris Herd @chris_herd]

I've spoken to 2,000+ people about remote work in the last 12 months

A few predictions of what is likely to emerge before 2030

[ a thread ] 💻🏠🌍