Research for One-Person Startups Using AI#

Finding AI Business Strategies You Can Execute Alone#

How This Book Is Organized#

This book has six parts. Parts 1 through 3 are the Foundations, which lay out the concepts and tools you need to know to work with AI. Parts 4 through 6 are the Execution section, which follows the process of building, operating, and promoting a product on your own. If you already use AI in your daily work, feel free to skip the Foundations and start from Part 4.

Table of Contents#

1. Introduction

   • The Age of One-Person Startups Powered by AI

2. Key AI Concepts

   • Key AI Concepts (1): AI / Machine Learning / Deep Learning / LLMs, plus Tokens, Context, and Cost
   • Key AI Concepts (2): Fine-tuning / RAG / Function Calling / MCP
   • Key AI Concepts (3): Prompt Engineering / Context Engineering
   • Key AI Concepts (4): Agents and Harnesses

3. AI Services and Tools

   • AI Services and Tools (1): Chat Services (ChatGPT / Gemini / Claude / Perplexity / Open-Weight Models)
   • AI Services and Tools (2): APIs and Model Selection
   • AI Services and Tools (3): Ecosystem Tools (Hugging Face / LangChain / Generative Media / Copilot / AI Browsers)
   • AI Services and Tools (4): Coding Agents (Cursor / Claude Code / Codex / Open-Source Agents)

4. Working with AI

   • Working with AI: Boosting Productivity

5. Executing a One-Person Startup

   • Execution (1): Ideas and Assets
   • Execution (2): Building a Product with Agents
   • Execution (3): Adding AI Features to Your Product
   • Execution (4): Operations — Cost, Security, Isolation, Evaluation
   • Execution (5): Marketing and Growth
   • Execution (6): Dividing Work Solo — When a Person Becomes the Scheduler

6. Conclusion

   • Conclusion: How Far Can a One-Person Startup Go?

About This Book#

This book contains research on how to run a startup alone by leveraging AI technology. Written from a developer’s perspective, it first organizes the key AI concepts and the services and tools you can use, then walks through the process a one-person founder actually goes through, in order: from finding an idea to building, operating, and marketing a product.

I am a developer who builds AI-based applications, and the Execution section of this book is based on my experience building and operating products together with coding agents, both at work and in personal projects.

Target Audience#

• Developers or startup founders with a technical background
• Those who understand server-client architecture and API concepts
• Anyone looking to apply AI technology to their business

On Time-Sensitive Information#

In the AI field, models and products change every few months. For that reason, this book avoids information that goes stale quickly, such as specific model names or prices, in the main text wherever possible. Where such information is essential, an “As of” box like the one below marks “when this content is current as of.” The latest developments are covered separately in this blog’s AI News.

Revision History#

• 2025-12 — Writing began; Introduction and Concepts published
• 2026-01 — Services and Tools and Use Cases published
• 2026-10 — Major overhaul: added the Agents chapter, created the Execution section, separated time-sensitive information, added illustrations and diagrams