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One week left to apply to YC Winter '27!
YC founders get:
🔸 $500K in funding
🔸 $12M+ in tokens, credits & deals
🔸Partners who were founders first, and are in your corner for life
🔸 Access to the best founder community in the world
🔸 Demo Day in front of thousands of top investors
Apply by Nov 2: ycombinator.com/apply
Candid Health (W20) is rebuilding the medical billing stack for healthcare providers, automating the work required to get claims submitted correctly and providers paid.
Medical billing is a $200–300 billion market, and much of it still runs on decades-old software and manual processes. Today, @candid_health serves more than 200 healthcare organizations, processes about $7 billion in claims each year, and recently raised a $120 million Series D to keep expanding into the broader healthcare market.
In this fireside, co-founder and CEO @nick_perry joins @gustaf to share how Candid went from manually reviewing every claim to building the automation layer behind the business. He also explains where AI and agents fit into medical billing, and why the goal is to prevent denials before they happen.
00:00 — What Candid Health Does
00:26 — Why Medical Billing Is So Complicated
02:13 — How Medical Claims Actually Work
07:27 — The $300B Medical Billing Market
09:14 — Finding Candid’s Wedge
11:00 — Winning the First Customer
13:00 — Doing Things That Don’t Scale
15:33 — Automating RCM With Software and AI
17:55 — From Palantir to Candid Health
19:25 — The Moment They Hit Product-Market Fit
20:44 — Building the Team and Culture
23:39 — From the First 10 Customers to Scale
27:24 — Where AI Agents Matter Most
30:14 — Raising a Series D and What Comes Next
37:33 — The Startup Lesson Nick Wishes He Knew
Y Combinator retweeted
One week left to apply to YC Winter '27!
YC founders get:
🔸 $500K in funding
🔸 $12M+ in tokens, credits & deals
🔸Partners who were founders first, and are in your corner for life
🔸 Access to the best founder community in the world
🔸 Demo Day in front of thousands of top investors
Apply by Nov 2: ycombinator.com/apply
Y Combinator retweeted
Announcing three major scientific discoveries, one each in mathematics (harmonic analysis), computer science (complexity theory), and physics (quantum field theory).
AI starting to help us improve our understanding of the universe! openai.com/index/building-sc…
Y Combinator retweeted
0 to 1.2 TRILLION tokens in one month! 🚀
1000+ customers joined Isoquant for frontier quality, better tokenomics, lower latency, and more control over inference.
Y Combinator retweeted
I'm happy to announce that we've raised $5.5M in seed funding for @Mochatradeapp to help Indians trade US markets, in Rupees.
Led by @CoinFund with backing from @cbventures, @ycombinator & others.
It's been an insane few months:
- 25,000 traders on our waitlist
- FIU-IND registration
- 0 to 11 full time employees
Launching soon 🚀
Y Combinator retweeted
Apply apply apply
One week left to apply to YC Winter '27!
YC founders get:
🔸 $500K in funding
🔸 $12M+ in tokens, credits & deals
🔸Partners who were founders first, and are in your corner for life
🔸 Access to the best founder community in the world
🔸 Demo Day in front of thousands of top investors
Apply by Nov 2: ycombinator.com/apply
AGENT SWARMS ARE HERE
*To accelerate your business
Today we're launching Agent Swarms @grepdotai to accelerate your business by tackling the backlogs your team can't keep up with.
Swarms are teams of agents that work together to automate a task queue in parallel.
Y Combinator retweeted
It's inspiring to see @MSchwaibold's design process, at the frontier of how AI-native design is being done today. He does incredibly detailed work that used to take a team of designers and engineers many iterations to perfect, that he can now produce and ship entirely himself.
Marvin Schwaibold leads the product design studio at Shopify, where his team is rethinking some of the company’s most important products for the AI era. Before Shopify, he co-founded the design studio Molly, working with companies including Apple and Google and building a reputation for highly crafted, interactive design.
In this episode of Design Review, Marvin joins YC’s Aaron Epstein to show how AI has changed his process, from using Figma as a scratchpad to building working prototypes directly with tools like Codex. He explains why designers are becoming more like editors, how AI is making them more full-stack, and why taste and judgment matter even more when the tools can build almost anything.
Then they review viewer-submitted websites and break down how hierarchy, motion, typography, and restraint can make a product feel more intentional.
00:00 — Inside Shopify’s Design Studio
00:30 — Designing With AI
01:44 — Designers Are Becoming Editors
03:25 — How Design Works at Shopify
05:58 — From Molly to Shopify
08:55 — Designing for Exploration
10:22 — Why the Details Matter
11:33 — Designing the Future at Shopify
13:24 — Prototypes Beat PRDs
15:29 — Rethinking Shopify With Sidekick
17:52 — Designers Are Becoming Builders
21:58 — Recreating Reality
24:33 — Dialing In AI-Generated Design
28:31 — Raising the Bar
31:04 — Website Review: Endstack
35:02 — SkillSync
40:49 — Instaplay
45:34 — Mintlify
51:42 — Knowlify
58:34 — Instinct Space
The community here is truly world class, and a price can’t be put on it. Only thing that matters
One week left to apply to YC Winter '27!
YC founders get:
🔸 $500K in funding
🔸 $12M+ in tokens, credits & deals
🔸Partners who were founders first, and are in your corner for life
🔸 Access to the best founder community in the world
🔸 Demo Day in front of thousands of top investors
Apply by Nov 2: ycombinator.com/apply
Y Combinator retweeted
Three months ago @ev_whitehouse and I set out to fix how agents get tested. Mocks aren't real enough and sandboxes don't scale.
Today we're launching Rystic (YC F26) : local copies of Slack, Stripe, S3 and the rest of your stack.
→ Save scenarios
→ Inject faults
→ Run at scale
Check it out below 👇
Y Combinator retweeted
i read @paulg's essay on "how to do great work" my first month at columbia and it ended up completely driving how i wanted to spend my college years.
i'm still in disbelief that i got to meet paul and jessica on campus!
so grateful for a beautiful conversation on what it takes to build meaningfully, the value of a liberal arts education today, and following your curiosity at full speed.
Y Combinator retweeted
Finally, you can get real healthcare directly from your Claude, ChatGPT, GrokBot, Muse, or Instinct.
Just tell them to use FutureClinic. Agents welcome.
Healthcare will never be the same again.
Backed by @ycombinator
Y Combinator retweeted
Thanks @aaron_epstein and @eve_bouff for having me on the Design Review at @ycombinator and letting me talk about carousel spring animations, grass shaders and some of the new work we’re cooking up in the design studio at @Shopify
Y Combinator retweeted
AI filmmaking is trash.
I mean, AI filmmaking is real filmmaking now.
Today we're launching Martini Bar from @martini_film: production infrastructure for AI filmmaking companies. 🍸
Y Combinator retweeted
We Applied 2 times.
Best Decision to join and move to SF.
@ycombinator and our Partner @kul are pushing us really hard and we couldn’t be more thankful!
One week left to apply to YC Winter '27!
YC founders get:
🔸 $500K in funding
🔸 $12M+ in tokens, credits & deals
🔸Partners who were founders first, and are in your corner for life
🔸 Access to the best founder community in the world
🔸 Demo Day in front of thousands of top investors
Apply by Nov 2: ycombinator.com/apply
Y Combinator retweeted
applying to yc will literally change your life.
i've applied 10 times to yc and i still couldn't have expected how much it transformed the trajectory of our company.
i'll properly review the first 20 applications i get in dms.
One week left to apply to YC Winter '27!
YC founders get:
🔸 $500K in funding
🔸 $12M+ in tokens, credits & deals
🔸Partners who were founders first, and are in your corner for life
🔸 Access to the best founder community in the world
🔸 Demo Day in front of thousands of top investors
Apply by Nov 2: ycombinator.com/apply
Y Combinator retweeted
One of the most unexpected things about YC is how long we continue helping the founders. Even though we're generally the first investors, we're the ones still advising them 10 years later. I think it's because we're the investing analogue of old friends.
One week left to apply to YC Winter '27!
YC founders get:
🔸 $500K in funding
🔸 $12M+ in tokens, credits & deals
🔸Partners who were founders first, and are in your corner for life
🔸 Access to the best founder community in the world
🔸 Demo Day in front of thousands of top investors
Apply by Nov 2: ycombinator.com/apply

























