“Collectively, they provided incorrect answers to more than 60 percent of queries.”
Columbia Journalism Review, Mar 6, 2025
The facts
Gemini Deep Research at a glance.
From Google's own pages, read Oct 20, 2026. Prices can change at any time; check the maker's page before you pay.
- Made by
- GoogleBased in United States
- What it is for
- Deep research and AI searchAnswers from the web, with the sources linked.
- Free plan
- YesDeep Research is listed among free Gemini features; free usage limits are not stated in numbers. Paid plans give "higher usage limits".
- Runs on
- web, mobile, desktop (Windows, macOS apps)
Plans and prices
| Plan | A month | What it includes |
|---|---|---|
| Free | Free | "$0/ month with a Google Account"; Deep Research is listed among free features. |
| Google AI Plus | $4.99 | Page says 2x higher usage limits than Free, plus video generation and Daily Brief. |
| Google AI Pro | $19.99 | "Get 4x higher usage limits than Free and access to more features like video generation and Daily Brief." |
| Google AI Ultra | $99.99 | "Starting at: $99.99/ month"; a higher tier is $199.99/month. |
Google Gemini subscriptions page, Oct 20, 2026 · company-reported
Read the small print
What its terms say.
Copied word for word from the maker's terms, with any lawsuits or complaints and their status when we last checked.
“Google uses your activity to provide, develop, and improve its services (including training generative AI models)”
Our note: Overview page says "Check responses." and "College students can unlock more access to Deep Research with a free Pro plan for one year." Platforms per Gemini release notes (Windows app 2026-09-10; macOS app 2026-10-13).
Independent evidence
What tests of tools like this have found.
“Almost half of all AI answers had at least one significant issue.”
EBU, Oct 21, 2025
Other deep research and ai search tools