AI adjusted volume is the estimated monthly demand for AI prompts in Brand Radar. This number helps to give a sense of AI search demand for any prompt in proportion to the overall usage of each AI platform.
Note: AI adjusted volume replaced the previous way of estimating AI search demand for any prompt on 31st August 2026 (previously, all platforms showed the same volume for the same prompt). It is possible that previously fetched numbers for Volume, Impression and other affected metrics before this day will not match what currently shows on the platform.
How AI adjusted volume is calculated
For every prompt, we take the Google search volume of the parent keyword and multiply it by each AI platform's estimated usage.
The ratios themselves are derived from Ahrefs' aggregated website traffic data coming from different AI platforms relative to organic traffic from Google:
Below is a table of the ratios we use for each platform:
Platform | Ratio |
AI Overview (search queries) | 1.00 |
AI Overview (prompts) | 0.20 |
AI Mode (search queries) | 0.10 |
AI Mode (prompts) | 0.05 |
ChatGPT | 0.115 |
Gemini | 0.011 |
Perplexity | 0.01 |
Copilot | 0.0033 |
Grok | 0.000054 |
How parent keywords are derived
Prompts are sourced from People Also Ask questions.
Multiple related keywords can sometimes show the same People Also Ask questions. When this happens, we pick the keyword with the highest search volume.
A calculation example
To calculate the AI adjusted volume for prompt What is a latte mug? in ChatGPT, United States:
1. We first identify the google search volume of the Parent keyword. In this case, the parent keyword is latte cups:
Which has a search volume of 1,296 in August 2026:
2. We then multiply it with ChatGPT's platform ratio of 0.115:
and that gets rounded up to 150, which is the number you see in Brand Radar:
How is AI adjusted volume used in Brand Radar?
AI adjusted volume is used on its own to show relative demand for any prompt in a given platform and country.
It is also used to calculate Impressions and AI Share of Voice for a brand or a cited page that shows up for multiple prompts:
Learn more about all the metrics we use to measure AI visibility in Brand Radar.