Jeff Weinstein
@jeff_weinstein
product at @stripe. tiny angel investor. led @wagonhq (acq by @box) and @hyperpublic (acq by @groupon). i reply to good cold emails.
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The fun thing about building teenytiny.ai was it was 100% built in Claude Code. Didn’t open a text editor or click around dashboards. Everything: backend, frontend, infrastructure, website, copywriting, graphics, test suite, deployment scripts, terraform, the lot!
Convert any PDF into a fillable form with 🪄AI magic. I built a free tool that: (a) takes seconds, (b) outperforms all the commercial solutions, and (c) is open source!
It's so easy to grow developer products. "Just" build incredible demos that show off the technology's capability. @mixedbreadai cooked so hard here. Instant multi-modal AI search, demo'd with the National Gallery of Art dataset. Everything just works and looks fire.…
[ask] For those of you scaling an AI company: What unique problems are you facing that non-AI companies face less? - Free tier is expensive (LLM costs a lot more than CPU) - More fraud (token in/output is valuable) - Go global faster (digital only, auto-translation) What else?
here is a story about @tbpn, the current media obsession of silicon valley nytimes.com/2025/10/11/tec…
Stripe @atlas startups are growing faster than ever. The 2025 cohort has the highest median run rate yet, up 76% vs the 2024 cohort, with twice as many startups hitting $100K+ of revenue.
I've really been enjoying this workflow lately. Whenever a PM or a designer finds a small change to be made, we just create the issue and assign it to a coding agent. It would have been much more annoying for us to put it into the work queue, wait for an engineer to take time…
Who's building agents that handle complex enterprise/back-office procurement (e.g. I need to buy A items from X vendor, B items from Y vendor, C items from Z vendor)? I'd love to talk to you about some tools @stripe is building and see if I can help you. [email protected]
Founders, if you're looking for what product-market fit reads like...
A new enterprise prospect asked for a reference. Here’s what one of our customers sent them after migrating 2,000+ GitHub repos and 1,400+ teammates to @linear: “From semi-chaos to a single source of truth.”
My Gmail desktop app project @trymeru is now fully powered by @stripe Managed Payments to act as MoR! Setting it up was super simple with adding only 2 lines of code to the existing @honojs codebase. It almost feels too easy! Huge props to @jrfarr and team for an amazing job!
this
How to build good new products at larger companies: 1. Pretend you have 0 customers and 0 distribution. 2. Think big: Imagine you have unlimited time and money, what would you build? 3. Then, think small: What can you build in 1-2 weeks. Put it in 10 user's hands. 4. Repeat…
How to build good new products at larger companies: 1. Pretend you have 0 customers and 0 distribution. 2. Think big: Imagine you have unlimited time and money, what would you build? 3. Then, think small: What can you build in 1-2 weeks. Put it in 10 user's hands. 4. Repeat…
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