Quick answer: Google’s AI Overviews are AI-written summaries at the top of search results, and AI Mode is a separate conversational search. Both can make mistakes, so open the linked sources before trusting anything important. You cannot switch Overviews off, but the Web filter hides them.
Many people now read the AI box and stop. A Pew Research study, as summarized by Deepak Gupta, found users clicked a result on 8% of searches that showed an AI summary versus 15% without one. Google disputes that study’s methodology.
This guide explains how the two features work, where they go wrong and how to check an answer in a minute or two. It applies to searchers in the US, UK, Canada, Australia and most of Europe, with the caveat that availability varies by country.
What are AI Overviews and AI Mode?
According to Google’s Search Help, AI Overviews use generative AI to create a new summary from patterns in training data. They appear when Google’s systems judge that a quick grasp of several sources is useful. They are not shown on every search.
AI Mode is different. Wikipedia describes it as a Search feature for complex, multi-part queries that returns AI-generated responses using Gemini and accepts text, images and voice. It started in the US in March 2025 through Search Labs.
How do they produce an answer?
Google describes AI Mode as splitting a question into subtopics, running many searches at once and combining the results. One analysis says observers have counted roughly 8 to 12 or more parallel sub-queries per question, but that is an analyst observation, not an official Google figure.
The result is a written answer with citations. The key point is that the text is generated, so it can sound confident while being wrong.
How often are they wrong?
No reliable error rate was available in the sources we found. Documented cases show the risk:
- In May 2024 the tool told users to put glue on pizza and eat rocks, and Google temporarily restricted it, per Wikipedia.
- In January 2026 Google restricted AI Overviews on certain health searches after a Guardian investigation, per the same page.
- A Canadian musician sued Google in 2026, claiming an Overview falsely labeled him a convicted sex offender. That is an allegation in a lawsuit, not a finding.
Google’s own help page says Overviews can make mistakes and tells users to verify important details.
How do I check an AI answer?
- Open the source links. Google says to click the supporting web sources and check other results too.
- Look for the original publisher. For health, money, legal or safety topics, prefer a government, hospital or official company page. This is general information, not professional advice.
- Cross-check one number. Pick the most important date, dose, price or rule and confirm it on a second site.
- Watch for missing context. If the answer sounds too tidy for a disputed topic, read two sources that disagree.
- Report bad answers. Use the thumbs-down icon under the overview and choose “Report a problem.”
The same habits work for chatbots. Our guide to using AI safely at work and the tips in writing better AI prompts help you ask clearer questions and catch weak answers. For this site’s wider coverage, see the AI category.
When should I skip the AI summary?
An AI summary is fine for a quick orientation, such as what a term means or how two products differ at a high level. It is a poor final answer when the stakes are high or the topic is contested.
- Health and safety: read the official page from a health service or manufacturer. Google itself restricted Overviews on some health searches in January 2026, per Wikipedia.
- Money and legal questions: rules vary by country and change often, so confirm with the relevant authority. This is general information, not advice.
- Breaking news: summaries may lag behind or blend older reports with new ones.
- Anything you will quote or publish: trace the claim to its original source first.
Can I turn AI Overviews off?
No. Google’s help page says you cannot turn them off and calls them a core Search feature. The “AI in Search” toggle in Labs controls experimental features, not Overviews.
What you can do is search, then choose the Web filter. Google says it shows only text-based links without features like AI Overviews. Google also notes its settings may change as Search is updated, so the menu may look different on your device.
Frequently asked questions
Are AI Overviews the same as AI Mode?
No. Overviews are a summary on a normal results page. AI Mode is a separate, conversational experience. On mobile, Google says you can continue from an Overview into AI Mode through the “Ask anything” bar.
Do AI Overviews show where information came from?
Yes, they include links to sources, but a link does not prove the summary matches the page. Open it to confirm.
Is it available outside the US?
Wikipedia reports AI Overviews reached the UK in August 2024 and over 200 countries and territories by May 2025, with a few exclusions. Availability can differ by country and language.
Why are fewer people clicking websites?
Pew’s findings, summarized above, suggest users click less when a summary appears. Google disputes the study, so treat the exact figures as contested.