Before anyone mapped the AI landscape, I went through it myself. 14,000 AI tools. Manually checked. One by one. This book is the raw, honest account of that journey — what I found, what broke me, and what I learned about where AI is actually heading. It led to the GAIT 69 taxonomy (peer-reviewed, DOI assigned), the AI MAP app, and the follow-up book covering 6,494 verified engines. This is where it all started. Kindle $3.99 | Paperback $14.99 on Amazon. Also on Gumroad.

Hi Product Hunt! 👋

I'm Do Hun Kim, an independent researcher from Korea.

Most AI tool guides are scraped or AI-generated.
I did this differently — I went through 14,000 tools by hand.

This book is the honest story of that process.
The confusion, the patterns, and the moment it all clicked
into what became the GAIT 69 taxonomy.

If you've ever felt overwhelmed by the pace of AI —
this book was written for you.

Also check out:
→ "Wait, They're ALL Here?!" (6,494 verified engines)
→ AI MAP app — both already on Product Hunt!

📊 The database started at 6,494 and has already
grown to 6,676 engines as of today. Updated daily.

📬 Follow my weekly research journal: developerh.substack.com

I Fought AI: A Guide to 14,983 AI Engine

One developer's honest journey through 14,000 AI tools

One developer's honest journey through 14,000 AI tools