Y Combinator
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Y Combinator publishes practical startup guidance on product building, fundraising, founder decision-making, and scaling high-growth technology companies.
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Included for practical education on practical startup guidance on product building, fundraising, founder decision-making, and scaling high-growth technology companies.
Showing 320 digests for Y Combinator.
Cursor's head of design reviews startup websites built with AI
Y Combinator
November 20, 2025
Copywriting
9
Branding
8
AI tools & automation
6
Most AI-built sites fail the five-second 'what is this?' test.
Purple gradients, generic fonts, and clutter signal vibe-coded output.
Visitors ask four questions in order — answer them in that order.
AI tools & automation
YouTube
How Flexport is using AI to cut ocean freight costs by 8-10%
Y Combinator
November 14, 2025
AI tools & automation
9
Automation & tools
8
Business models
6
AI cut container transit time 20% while also reducing cost
90-95% of freight-forwarding work could soon be automated
Raise a big round, then freeze hiring for 90 days
AI strategy & adoption
YouTube
Starcloud: building AI data centers in orbit
Y Combinator
November 13, 2025
AI strategy & adoption
8
Case studies
7
Business models
6
First Nvidia H100 GPU ever operated in space, launched 2025
Orbital data centers need zero fresh water and unlimited solar power
Falling launch costs make space compute cheaper than Earth within a decade
Hiring & recruitment
YouTube
How to source and hire your first engineers and account executives
Y Combinator
November 7, 2025
Hiring & recruitment
10
Prospecting & outreach
8
Closing techniques
6
Hiring is outbound sales — treat every outreach like a crafted cold email.
Speed is your edge: close candidates in 7–14 days before big companies do.
Sell first, interview second — most founders get this order wrong.
AI strategy & adoption
YouTube
Why enterprise AI failure is good news for startups
Y Combinator
October 30, 2025
AI strategy & adoption
9
B2B sales
8
Business models
6
Enterprises fail at AI because their engineers don't believe in it.
Startups win by going deep on integration, not plug-and-play.
High switching costs mean early enterprise wins become durable moats.
AI strategy & adoption
YouTube
How to build and sell an AI startup that replaces professional work
Y Combinator
October 28, 2025
AI strategy & adoption
9
Product-market fit
7
B2B sales
6
Target jobs people already pay humans to do — the market is obvious.
Most teams quit at 60% accuracy; two weeks of eval work reaches 97%.
Pilots don't equal revenue — adoption and onboarding close the gap.
AI go-to-market, pivoting, and early hiring for founders
Y Combinator
October 21, 2025
Pivoting
9
AI strategy & adoption
7
Hiring & recruitment
6
Automate-rate matters more to investors than revenue in AI firms
Pivot when conviction dies, not just when growth stalls
Hire only when specific functions are visibly breaking
How to find billion-dollar startup ideas by being contrarian and right
Y Combinator
October 17, 2025
Niche selection
9
Case studies
8
Business models
6
Non-obvious ideas feel dangerous — that discomfort is the signal.
Flock Safety: ignored VC rules, now solves 10% of US crime.
The default playbook (forward-deployed engineers) is already ripe to flip.
Remora: capturing CO2 from trucks and trains at the source
Y Combinator
October 9, 2025
Case studies
8
MVP & prototyping
6
Capturing CO2 at the exhaust is far cheaper than direct air capture
Selling captured CO2 as a product funds the emissions reduction
Ambitious problems recruit better teams than safe ones
AI strategy & adoption
YouTube
Questions every AI startup founder should ask before AGI arrives
Y Combinator
October 7, 2025
AI strategy & adoption
9
Vision & mission
7
SaaS may die as enterprises build in-house with AI coding tools
Smaller AI-native teams erode the human trust guardrails inside companies
Hard physical problems remain the most defensible moat after AGI
Competitive analysis
YouTube
Seven moats for AI startups: applying the Seven Powers framework
Y Combinator
October 3, 2025
Competitive analysis
10
AI strategy & adoption
8
Long-term planning
6
Speed is the only moat that matters before you have traction.
SaaS incumbents' per-seat pricing is an AI-era structural Achilles heel.
Data flywheels and eval loops compound into moats competitors cannot buy.
AI strategy & adoption
YouTube
How Anthropic trains frontier AI: pre-training, scaling, and engineering reality
Y Combinator
September 30, 2025
AI strategy & adoption
10
Processes & SOPs
7
Scale beats architecture — more compute reliably wins over clever design choices.
Silent bugs in a multi-month training run can silently invalidate an entire model.
Engineers, not researchers, are the binding constraint at frontier AI labs.
Why now is the best time to build crypto products
Y Combinator
September 23, 2025
Business models
9
Niche selection
7
AI strategy & adoption
5
Chain costs fell 1000x — the broadband moment for crypto has arrived.
Regulatory clarity lets builders spend money on engineers, not lawyers.
Every legacy financial system can now be rewritten in hundreds of lines of code.
AI strategy & adoption
YouTube
Why startups win in the AI era, with Box CEO Aaron Levie
Y Combinator
September 16, 2025
AI strategy & adoption
9
Business models
8
Niche selection
7
AI unlocks a vast backlog of work companies couldn't justify before.
New business model: charge per unit of work, not per seat.
The startup window is open now — it closes in two to three years.
AI strategy & adoption
YouTube
Software creation is shifting from experts to anyone with an idea
Y Combinator
September 12, 2025
AI strategy & adoption
9
Business models
7
Management
5
Application software will trend to near-zero cost within years.
Agent reliability depends on infrastructure, not just better models.
Domain expertise beats coding skills for building agent startups.