Most teachers are working as many hours as bankers and consultants
Late nights are spent grading and lesson planning. That's why @abhaygupta_eth is building @tryfrizzle, an AI-powered grading platform for handwritten work
Inside YC’s Hottest Startups 🚀
6.5% of @ycombinator companies become unicorns — insane, right?
So I wanted to find out what makes these founders tick — and how you can learn from them.
We met the hottest startups from the YC Summer ’25 batch to uncover what they’re building, their biggest mistakes, and early wins.
Here’s what we discovered 👇
👥 Who they are and what they’re building
🧭 How they found their first customers & priced their product
💡 How each founder sees their market opportunity
🧱 The biggest challenges they’ve faced so far
🏆 Their biggest wins
🚀 Lessons in scaling early and fast
Whether you’re building, planning to build, or already operating — this episode is for you!!
Meet the hottest startups 👇
@tryfrizzle — Uses AI to grade handwritten math assignments in minutes, giving teachers back 10+ hours a week.
– Co-founded by @abhaygupta_eth!
@floothq — Lets non-coders & entrepreneurs build real web apps that actually work — built ground-up for AI.
– Co-founded by @yyjhao!
@thesagekit — Your AI automation engineer. Stop wasting time learning yet another tool or hiring expensive agencies.
– Co-founded by @tomgreenwald!
@AprilAssistant — Voice AI executive assistant that manages your email & calendar — hands-free.
– Co-founded by @Neha_Suresh_M!
@joincacao — Building the global dollar app for Brazil.
– Co-founded by @alecmhoward!
@flywheel_inc — Converts existing excavators for contractors to enable remote ops & boost productivity.
– Co-founded by @jash_mota!
Big thanks to @oceanstalent for sponsoring this episode — if you’re looking for highly vetted, U.S.-caliber talent at 70–80% less, they’re your people.
Watch the full episode alongside thousands of others right now!!
👉 https://t.co/741fwVV6uL
P.S. Hit that YouTube subscribe button, we got bills to pay!!
Hello SFO 👋Today 6 of our portfolio companies will be presenting at YC’s 25 Demo Day
We’ve been investing in YC companies for a while now: Boost Robotics (X25), CodeAnt AI (W24), Mantys (W23), EthosX (S22) and Material Depot (W22)
YC has produced outlier companies in India:
Delighted to share our partnership with Frizzle (YC S25) 🎉
Abhay & Shyam have been friends since high school - where they started a Not For Profit organization called the Midwest Maths Circle.
Their love for Maths, teaching & technology made them partner up again
Teachers spend over 10 hours a week grading. Frizzle (@tryfrizzle) gives them that time back by instantly grading handwritten and typed math worksheets using AI.
They're also an official White House partner.
https://t.co/StfdZ09kMo
Congrats on the launch, @abhaygupta_eth & @ShyamSSai!
Frizzle is on the @WhiteHouse website!
We're honored to be an official White House partner for bringing AI into education: https://t.co/FReUqQc1Nn.
This is a powerful reminder that the work we’re doing matters, not just for teachers, but for the future of AI and education.