# Claude and ChatGPT 2.0 (/claude-and-chatgpt-2/overview)

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title: "Claude and ChatGPT 2.0"
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Welcome to *The AI Agent Factory*. This book teaches you to manage AI Workers and to build your own. An **AI Worker** is an AI system you hand a whole job to, inside limits you set, the way you would hand a job to a skilled coworker. It does the work, and you check what comes back. The book starts with the new [Claude](https://claude.com/download) and [ChatGPT](https://chatgpt.com/download/) desktop apps, the programs you install on your computer. For both Claude and ChatGPT, we work in the desktop app by default.

"2.0" is this book's nickname for the change from asking an AI questions to handing it whole jobs. It is like a version number, not an official product name.[^name]

## In this section

- [The New Way of Working](new-way-of-working/overview.md): what has changed, one job from start to finish, and what stays your responsibility. It ends with a practice lab you can do on a free account.
- [Tour of the Apps](tour/overview.md): each feature of both apps, the two side by side, and which model to use for which job. It is optional, for now or whenever a chapter uses a feature.
- [Behind the Screen](behind-the-screen/overview.md): who does what when an AI Worker works, why the borrowed desk is cleared, and why permissions, not words, keep a job safe.
- [The Architecture](architecture/overview.md): the evidence and the engineering behind the same ideas, and what a business must add. It is optional, the technical edition.
- [Case 1: Nisha's AI Team](case-1-nishas-ai-team/overview.md): a case study of an accountant who manages two AI tools to plan a book in one evening, with a lab that takes her method further.
- [Case 2: Nisha's First Client](case-2-nishas-first-client/overview.md): a case study of her first paid job, run with an AI Worker that works while she sleeps, with a lab where you build the same worker.

[^name]: The term echoes a video walkthrough of the new Claude desktop app, which quotes one of the engineers who worked on Claude Code calling it "basically a Claude 2.0" (https://www.youtube.com/watch?v=tM0dwXhOv2o). Applying it to both apps is this book's own shorthand.