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Foundations

Start here — what startups are and how they work

Understand the startup world from the ground up: what startups are, how they differ from regular businesses, the stages of growth, and the mental models every founder needs before writing a single line of code.

26 items
Beginner
10 items
Term
AI Wrapper

An AI wrapper is a product built on top of a foundation model API with a custom UI, workflow, or niche focus, rather than novel AI model development.

Term
Vertical AI

Vertical AI is an AI product built for a specific industry or workflow, combining foundation model capabilities with deep domain expertise and proprietary data.

Concept
Business Model Canvas

A one-page visual template that maps how a company creates, delivers, and captures value across nine building blocks.

Article
B2B vs. B2C: Choosing the Right Model

B2B and B2C startups play completely different games. Here's how to choose the model that fits your market, your skills, and your capital plan.

12 min
Article
The Founder Mental Health Crisis

50% of founders experience mental health conditions. Here's why founder burnout is structural - and the specific tools that actually help.

11 min
Article
Startup Legal Basics for Founders

Four legal decisions - incorporation, co-founder equity, IP assignment, and the 83(b) election - can make or break your company. Get them right early.

14 min
Article
Startup vs. Small Business: Key Differences

A startup and a small business are fundamentally different organizations with different goals, capital, and exit logic. Here's the real difference.

10 min
Article
What Is a Startup? A Complete Definition

Startups are designed to search for a repeatable, scalable business model under extreme uncertainty - they are not just small versions of large companies.

8 min
Article
The Stages of Startup Growth

The five stages of startup growth explained - from ideation to scale - with key milestones, exit criteria, and common failure modes for each phase.

10 min
Article
Why Product-Market Fit Matters

Before scaling, only one thing matters: product-market fit. Here's why it's the central challenge of early-stage startups and what it actually takes to find it.

10 min
Intermediate
16 items
Term
Competitive Moat

A competitive moat is a durable advantage that protects a startup's market position from competitors. Network effects and switching costs are the strongest.

Guide
How to Build an AI Startup

A practical guide to building AI-native companies: from defining your AI edge to raising capital and scaling your model stack.

12 min
Guide
Validate Your AI Startup Idea

How to validate an AI startup idea before building: test AI necessity, find the pain, prototype fast, measure willingness to pay, and plan data acquisition.

10 min
Concept
AI Moat

The competitive advantages that make an AI startup defensible - and why model access alone is never one of them.

Concept
AI-Native Startup

A startup built from the ground up with AI as the core product architecture - not a traditional product with AI features added on top.

Concept
AI Product-Market Fit

How product-market fit signals differ for AI products - and why the awe of early demos often masks the absence of real retention.

Concept
The Flywheel Effect

The flywheel effect describes how consistent momentum across linked business activities creates compounding growth with no single breakthrough moment.

Concept
Porter's Five Forces

Porter's Five Forces is a framework for analyzing competitive intensity in any industry across five structural forces that shape profitability.

Concept
Two-Sided Marketplace

A two-sided marketplace connects two distinct user groups who each provide value to the other, powered by cross-side network effects.

Article
AI Startups: B2B vs B2C

Should you build AI for businesses or consumers? An honest comparison of the dynamics, defensibility, and economics of B2B vs B2C AI.

10 min
Article
AI Regulation for Startups

The key AI regulations founders need to know in 2025-2026 - EU AI Act, US rules, GDPR implications, and a practical compliance checklist.

11 min
Article
AI Startup Defensibility

How to build sustainable competitive advantages in AI - the four real moats and how to develop them from day one.

11 min
Article
AI Startup Metrics

The key metrics founders should track for AI products - from AI-specific signals to standard SaaS metrics adapted for AI economics.

10 min
Article
Claude Code vs Cursor vs Copilot

Comparing the three leading AI coding tools for startup developers - paradigm, pricing, strengths, and which to choose for your team.

10 min
Article
The Real Cost of an AI Startup

A clear-eyed breakdown of AI startup costs - infrastructure, inference, people, and what unit economics actually look like at different revenue stages.

11 min
Article
Why AI Wrappers Fail

Most AI wrapper startups fail within 18 months. Here's the structural reason - and the few ways to build defensibility on top of a foundation model.

10 min