Gemini 2.5 Pro VS BookBench™

In this video, I put Gemini 2.5 Pro to the test with the BookBench™ test: I test whether this model is really useful for writing non-fiction books for professionals (manuals, training books, personal branding). Everything is done with the same prompt and the same rules used for all AIs: objectivity and direct comparison.

What is BookBench™: it is the world's first benchmark created to evaluate AI in book writing. It is based on 10 stages (titles, summary, introduction, chapters, stress test, token test, detector, etc.), combines human evaluation and automatic tools (scores on clarity, style, impact, memorability, etc.) and produces a final score to compare models in a repeatable and transparent way.

Chapters
0:00 🔥 Intro + promise
0:58 ⚙️ BookBench™: Setup & rules
1:27 📝 Prompt brief
2:12 ✂️ First responses (titles)
3:04 🏷️ Title selection & move to table of contents
3:30 📖 Table of contents: judgment and rating
4:31 ✍️ Writing the introduction (2000 words)
5:14 📚 Introduction: reading and first impressions
6:18 🧾 Introductory evaluation — style & content
7:05 📊 Length & readability
8:10 ⚔️ Stress test: chapters & length
9:46 ✍️ Chapter 1 — output and rating
12:23 📉 Full book test (total word output)
12:52 🔎 Token/context test
13:33 📌 Results & conclusions

#BookBench #Gemini #AIWriting #Benchmark

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