Compare · Google taxonomy #784
Books
Libros · Media
n = 14 answers14 promptsOct 28, 2026Mexico
Libros
n = 4 answers4 promptsOct 27, 2026Leader Kindle10%
United States
Books
n = 6 answers6 promptsOct 28, 2026Leader Libby22.2%
Spain
Libros
n = 4 answers4 promptsOct 28, 2026Leader Apple Books16.7%
What's different
Generated from the numbers below; each line only appears when both sides have enough data.
Auto-generated
- ChatGPT shows ads in 100% of these answers in the US vs 0% in Spain.
- AI answers show a shopping carousel 16.7% of the time in the US, but almost never in Spain (0%).
- AI demand is 7.6× higher in the US (259.5K asks a month) than in Spain (34.3K).
- A different brand leads in each country: Kindle in Mexico, Libby in the US and Apple Books in Spain.
- Best opportunity: Spain, scoring 50 (medium) against 29 in the US.
- Only Audible makes the top 5 in all three countries; the rest of each ranking is local.
Side by side
Metric
MXMexico
USUnited States
ESSpain
AI asks / month
35K
259.5K
34.3K
Google searches / month
84.2K
625.3K
82.7K
Search trend
down −4%
Peak: Apr 2026
down −12%
Peak: Oct 2025
down −38%
Peak: Oct 2025
Cost per click
MX$16.83
Low competition
$5.60
Low competition
€1.05
High competition
Shopping carousel
0%
AI Mode 0% · ChatGPT 0%
16.7%
AI Mode 0% · ChatGPT 33.3%
0%
AI Mode 0% · ChatGPT 0%
Ads in answers
50%
1 ads seen
100%
3 ads seen
0%
0 ads seen
Brands named
10
Top 3 hold 30%
8
Top 3 hold 44.4%
11
Top 3 hold 33.3%
Concentration
Not enough data
Needs more answers
Fragmented
HHI 1,358
Not enough data
Needs more answers
Products in carousels
0
No prices seen
3
Median $19.29
0
No prices seen
Opportunity
Low38
Low29
Medium50
Brands AI recommends
Top 5 per country, by share of brand mentions.
Mexico
10 brands
United States
8 brands
Stores in the shopping carousels
Who sells the products AI shows, by share of product cards.
Mexico
0 products
- 1Amazon100%1
United States
3 products
- 1Amazon40%2
- 2Target40%1
- 3HarperCollins20%1
Spain
0 products
- 1Amazon66.7%2
- 2MediaMarkt33.3%1
Every sampled niche gets the same two prompts in every country, in its language: a short product search in Google AI Mode and a buying question in ChatGPT. Money stays in each country's currency. CPCs for Spain and the United States are converted from MXN with the European Central Bank reference rate of 2026-10-28. How we measure