| Comparison Tool | Monthly Visits | Multiplier Ratio | Differential |
|---|
| Rank & Tool | Category | Country | Simulated Visits | Market Share | Daily Visits | Per-Second Visits | HHI Contribution |
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In the baseline model, nine point zero four billion monthly visits divide across seven leading AI services, led by ChatGPT at nearly fifty-nine percent share. Selecting the DeepSeek Surge preset applies a one hundred fifty percent boost to DeepSeek while dampening ChatGPT visits by ten percent. Each service's percentage share is squared and summed to yield the index. As ChatGPT's outsized share shrinks, its squared area contracts dramatically, pulling market concentration down from 3,839 to 3,080.