
I originally hypothesized that AI was over hyped and the size of its growth curve overstated. So, I sought to evaluate and likely disprove the prevailing narrative about the size of AI. However, what I found is that the size and trajectory of AI are *understated* and that AI is much bigger than I thought.
Study: graphite.io/five-percent/a…
Key Findings
1. Monthly sessions of AI are now 56% the size of search worldwide and 34% in the US, 4x-5x larger than previous reports that only include web data.
2. AI now receives 45B monthly sessions worldwide, and 5.4B monthly sessions in the US.
3. Search-related sessions of AI (Asking prompts) are now 28% the size of search worldwide and 17% in the US.
4. AI has grown even larger across the World than in the US, with worldwide sessions 7x that of the US.
5. Search has not decreased, and neither has Google. Instead, the pie has gotten bigger. Total search-related sessions, combining search engines and search on LLMs, have increased by 26% worldwide and by 16% in the US, comparing 2025 with 2024.
6. 83% of AI usage occurs in mobile apps worldwide, and 75% in the US.
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