How many people use AI search?

AI search reaches billions of people, and the count is climbing fast. The most trustworthy numbers here come straight from the companies that run these tools, so treat them as reach, meaning how many people use each tool. There is one honest catch to hold onto the whole way through: reach is not the same as query share. A tool can have a billion users and still handle only a tiny slice of the world's searches. Both facts are true at once, and this page keeps them side by side.

Below are the platform numbers, each tied to the company that reported it, then the plain way to check whether AI search actually sends customers to your business. For the full sourced reference behind these figures, see the full sourced statistics reference. This page is the deep dive on one question inside it: how many people use AI search.

How many people use ChatGPT?

ChatGPT reached about 900 million weekly active users in February 2026, up from about 400 million a year earlier, and its app passed roughly 1 billion monthly active users by mid-2026 (OpenAI, first-party). That is a fast climb. Weekly active users roughly doubled in a single year, which makes ChatGPT the largest single AI assistant by reported audience.

These are OpenAI's own numbers, reported by the company. That makes them the highest-confidence figures we have, because they come from the source that runs the product. It also means they measure reach, meaning people who open ChatGPT, not how many total searches those people run. We report the weekly active user count and the monthly app count exactly as OpenAI gave them, and we leave out any later, unconfirmed figures rather than guess.

How many people use Google's AI search?

Google's AI Overviews reach about 2 billion people a month, and Google's Gemini app grew from roughly 450 million toward about 950 million monthly users (Google and Alphabet, first-party). AI Overviews is the AI answer box that appears at the top of many Google searches, so its reach rides on Google's existing scale. Gemini is Google's standalone AI assistant app, and it is growing quickly on its own.

These figures come straight from Google and Alphabet company disclosures, which makes them first-party and high-confidence for reach. The AI Overviews number matters most for a small business, because it is the AI answer that sits on top of ordinary Google searches your customers already run. If AI can read and name your business, that is the surface where it can happen at the largest scale.

Is AI search bigger than Google search yet?

No. AI search reach is huge, but its share of actual searches is still small. This is the single most misread part of the story, so hold both facts together. The user counts are real and large, and at the same time independent clickstream data from SparkToro and Datos shows Google AI Mode is only about 0.34 percent of Google searches (January to April 2026), and Google still handles the vast majority of searches.

Reach and query share are two different measures. Reach counts how many people open a tool. Query share counts what portion of all searches run through it. A billion people can use an AI tool while most of their day-to-day searches still happen on plain Google. That is why we lead with the first-party user counts as the highest-confidence numbers, then place the independent clickstream data right next to them. Anyone telling you AI has replaced Google search is skipping half the evidence.

Every row above is a first-party platform figure, reported by the company that runs the tool. We keep this table to first-party numbers on purpose, because they are the ones you can trust most. The share-of-search caveat above sits outside the table because it comes from independent clickstream research, not from the platforms themselves.

How fast is AI search growing?

AI search is growing fast, roughly doubling on the biggest tools in about a year. ChatGPT went from about 400 million weekly active users in February 2025 to about 900 million in February 2026 (OpenAI). Over a similar stretch, Google's Gemini app grew from roughly 450 million toward about 950 million monthly users (Alphabet). Both roughly doubled.

Fast growth in reach is the real headline, and it is why waiting is a risk. But growth in reach still does not settle the query-share question. The number of people using these tools is climbing quickly, while the share of total searches that run through an AI answer is climbing from a very low base. For a small business, the takeaway is simple. The audience is already large and getting larger, so being readable and nameable by AI is worth setting up now, even while most searches still happen on plain Google.

How do I know if AI search sends me customers?

You find out whether AI search sends you customers by checking three plain things: your own traffic data, a monthly prompt test, and a free audit. The platform user counts tell you the audience is there. These three steps tell you whether any of that audience is reaching your business. None of them cost anything but a little time.

1. Look for AI referral traffic in Google Analytics 4. In Google Analytics 4, look for referral traffic from AI tools such as ChatGPT, Perplexity, Gemini, and Copilot to see if any visits arrive from them. This is undercounted today, so treat a few visits as a signal, not the full picture.
2. Run a monthly prompt test. Once a month, ask ChatGPT, Gemini, and Perplexity the questions your customers would ask, then note whether any of them name your business. Doing it on the same day each month shows you the trend over time.
3. Run a free AI-visibility audit. Run a free AI-visibility audit to see whether AI can read and name your business, and which signals are missing. This is the fastest way to find the gap between the huge AI audience and whether it can reach you.

The mechanics behind step two live in how to rank in ChatGPT, and where all of this is heading is covered in the future of AI search. If you want someone to run the check for you, that is what our free audit does.

Common questions about AI search use