Google AI Mode is now part of the main Google Search experience, and it changes how answers, links and ads reach people. Google AI Mode is an AI search experience from Google that answers questions with AI-generated responses, follow-up questions and links to the web; it launched as a Labs experiment on 5 March 2025 and was merged with AI Overviews into one AI Search experience worldwide on 20 May 2026. This page sets out what AI Mode is, how it retrieves and cites sources, which models it uses, where ads appear, what controls users and publishers have, and how it has changed over time. It is written for publishers, marketers, privacy teams and everyday users who want facts from Google's own pages rather than commentary.
Last checked: 2026-11-15.
This is an independent reference page from NHI Mgmt Group based on public provider documentation; it is not sponsored or endorsed by any provider.
Key takeaways
- One AI Search experience. Since 20 May 2026 AI Overviews and AI Mode work as one experience on desktop and mobile worldwide, so a user can move from an AI Overview into an AI Mode follow-up.
- Gemini under the hood. Google names Gemini 3.5 Flash as the default AI Mode model worldwide from 20 May 2026, and its help centre lists Gemini 4 Carbon as an option with daily usage limits for signed-in personal accounts.
- Query fan-out drives retrieval. AI Mode breaks a question into subtopics and searches each one at the same time, then composes an answer with links.
- Ads are labelled "Sponsored". As of 28 October 2026 Google was scaling AI Mode ads in ten markets, planned Brazil, Mexico and the UK for Q4 2026, and launched multiturn ads in follow-up queries in the US.
- No special optimisation is required. Google says a page needs to be indexed and eligible for a snippet to be a supporting link, and that no extra markup or AI-specific file is needed.
What is Google AI Mode?
Google's help centre calls AI Mode "Google's most powerful AI search experience". A user types or speaks a question, and instead of a list of ten links AI Mode returns a written response with links to sources, then accepts follow-up questions in the same thread. It differs from a classic results page in three ways: it handles multi-part questions, it keeps conversational context, and it decides which web pages to cite inside the answer.
| Field | Value (as of 2026-11-15) |
|---|---|
| Provider | |
| First release | 5 March 2025, opt-in Labs experiment, first offered to Google One AI Premium subscribers |
| US general rollout | Announced 20 May 2025 at Google I/O, no Labs sign-up required |
| Current status | Merged with AI Overviews into one AI Search experience, live worldwide since 20 May 2026 |
| Default model | Gemini 3.5 Flash named as default from 20 May 2026; the help centre now lists Gemini 4 Hydrogen and Gemini 4 Carbon as AI Mode options and does not state a default |
| Other model option | Gemini 4 Carbon (announced 10 November 2026 for Google AI Ultra subscribers), personal Google Account required, daily usage limits |
| Inputs | Text, images, files, videos and Chrome tabs in the Search box (announced May 2026) |
| Usage reported by Google | More than 1 billion monthly users (provider figure, May 2026) |
| Price | Free in Google Search; some new features start with Google AI Pro and Ultra subscribers |
| Ads | Yes, labelled "Sponsored", in selected markets |
How do you access AI Mode?
Google's help centre lists three routes: go to google.com/ai, type a question in the Google Search bar and tap AI Mode, or tap AI Mode on the Google app home screen. Since the May 2026 merge, a user can also continue from an AI Overview into an AI Mode follow-up.
- Age: personalisation requires the user to be 18 or older, and AI Mode features in Search Labs are limited to users aged 18 and above.
- Countries and languages: the help centre publishes the list of countries, territories and languages where AI Mode is available. Personal Intelligence in AI Mode expanded in May 2026 to nearly 200 countries and territories in 98 languages, with no subscription required.
- History: Google recommends turning on history and personalised recommendations. Without history, AI Mode still works but previous searches cannot be resumed. History can be deleted from the AI Mode history panel or the Search History page.
- Feedback: thumbs up and thumbs down under each response; submitting feedback sends the most recent query and its results to Google.
Which models power AI Mode?
| Date | Model named by Google | Scope |
|---|---|---|
| 5 March 2025 | A custom version of Gemini 2.0 | AI Mode Labs experiment |
| 20 May 2025 | A custom version of Gemini 2.5 | AI Mode and AI Overviews in the US |
| 20 May 2026 | Gemini 3.5 Flash | Default for AI Mode worldwide |
| 10 November 2026 | Gemini 4 Carbon | Option for signed-in personal accounts, with daily usage limits |
As of 2026-11-15. Model details are on the Gemini 4 Carbon profile and in Gemini Flash and Flash-Lite Versions Compared. Google does not publish which model version answers a given query in the default experience beyond the default model named above.
How does AI Mode find and cite sources?
Google's launch post and Search Central documentation describe the same steps.
- Fan-out: the question is broken into subtopics and many related searches run at the same time across subtopics and data sources.
- Sources: results come from the Google Search index, with the Knowledge Graph, real-time sources and shopping data named at launch.
- Composition: Gemini writes a response and attaches links.
- Low-confidence fallback: where confidence in an AI response is not high enough, AI Mode may show a set of web links instead.
On 15 October 2026 Google announced changes to how links appear in AI Mode and AI Overviews:
| Change | Status in the October 2026 post |
|---|---|
| More inline links, shown higher in responses more often | Rolled out ("continued and substantial increases") |
| Official sites section at the top of a response, with context on why each link is useful, where only one or two official places exist for a task | Testing |
| News carousels for timely articles, highlighting Preferred Sources | Rolling out to more locations and languages |
| Related article links with image thumbnails at the end of some responses | Announced |
| Clickable creator and publisher names on video results, linking to Search profiles | Testing in AI Mode |
Google also reported that Preferred Sources usage grew more than 7x since the start of 2026. The sister page Google AI Overviews Explained covers how Overviews choose sources.
How do ads work in AI Mode?
Google's 28 October 2026 post sets out the current state.
- Markets scaling: Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore.
- Planned for Q4 2026: Brazil, Mexico and the United Kingdom, among other locales.
- Multiturn ads: launched in the US to allow ads in follow-up queries in AI Mode.
- Label: ads are clearly labelled "Sponsored".
- Formats: Google says it will keep testing new formats and reports similar click-through rates for sponsored and organic product list items in AI Mode.
The post does not list the US launch date or ad languages. Rollouts by market across engines are tracked in the Ads in AI Answers Tracker.
What features have been added?
| Feature | What Google says | Availability stated |
|---|---|---|
| Deep Search | Runs hundreds of searches and reasons across results to produce a fully cited report | Announced May 2025 as in development |
| Personal Intelligence | Optional connection to Gmail and Google Photos, with Google Calendar "soon" | Nearly 200 countries and territories, 98 languages, no subscription (May 2026) |
| Information agents | Background Search agents that monitor the web and send updates | Summer 2026, first to Google AI Pro and Ultra subscribers |
| Generative UI | Custom layouts with interactive visuals, tables, graphs and simulations | Summer 2026, free for everyone |
| Mini apps | User-built dashboards and trackers | Coming months, starting with subscribers |
| Universal Cart | Cart across Search, Gemini, YouTube and Gmail, using Universal Commerce Protocol | Search and Gemini app from summer 2026 |
| SynthID verification | Checks images, video and audio for SynthID in Search | Announced 20 May 2026 |
As of 2026-11-15. "Summer" and "coming months" are Google's wording; check the official post for current status.
What can publishers control?
Google's Search Central documentation sets the rules for appearing as a supporting link.
- Eligibility: the page must be indexed and eligible to be shown in Google Search with a snippet. Google states there are "no additional requirements" and no special schema.org structured data is needed.
- Crawling: Googlebot rules in robots.txt control crawl access for Search.
- Display limits: nosnippet, data-nosnippet, max-snippet and noindex limit what Search shows, including in AI features.
- Training and grounding elsewhere: Google-Extended controls use for AI training and grounding in some of Google's other systems; it is not the control for AI Mode display.
- Measurement: traffic from AI Overviews and AI Mode is included in the Search Console Performance report under the "Web" search type.
- Recrawl: changes to preview controls can take days to months to show; Google suggests checking with the URL Inspection tool.
For how optimisation for answer engines is defined, see What Is Answer Engine Optimisation (AEO)? Definition, Signals and Measurement.
When was Google AI Mode released, and how has it changed?
| Date | Milestone |
|---|---|
| 5 March 2025 | AI Mode introduced as an opt-in Labs experiment, first for Google One AI Premium subscribers, using a custom Gemini 2.0 |
| 20 May 2025 | US rollout without Labs sign-up; custom Gemini 2.5 in AI Mode and AI Overviews; Deep Search, Search Live, agentic tasks, AI shopping and personal context announced |
| 20 May 2026 | AI Overviews and AI Mode merged into one AI Search experience worldwide; Gemini 3.5 Flash default; new multimodal Search box; Personal Intelligence widened; SynthID verification in Search |
| 15 October 2026 | More and higher inline links; official sites section test; wider news carousels; creator profile test |
| 28 October 2026 | Ads scaled to ten more markets; multiturn ads in the US; Brazil, Mexico and the UK planned for Q4 2026 |
As of 2026-11-15. Google also reported that AI Mode queries more than doubled every quarter since launch (provider figure, May 2026).
What are AI Mode's limitations?
Google's own help centre is direct about limits. It says that, as with any early-stage AI product, AI Mode "doesn't always get it right", that it may misread web content or miss context, and that users should check important information in more than one place. Practical consequences for readers and organisations:
- Verify before acting: open the cited source for anything legal, medical, financial or security related rather than relying on the summary.
- Expect links instead of answers sometimes: low-confidence questions may return web links only.
- Personalisation changes answers: with history and Personal Intelligence turned on, two users can see different responses to the same question.
- Usage caps apply to some models: the Gemini 4 Carbon option has daily limits.
- Features vary by market: ads, carousels and newer agentic features roll out by country and plan, so what one user sees may not match another region.
Is Google AI Mode free?
Yes. AI Mode is part of Google Search at no charge. Some newer features start with paying Google AI Pro and Ultra subscribers before wider rollout, and the Gemini 4 Carbon option carries daily usage limits.
Is AI Mode the same as AI Overviews?
They began as separate features: AI Overviews appear on a normal results page when Google's systems decide they add value, while AI Mode is a dedicated conversational experience. Since 20 May 2026 Google describes them as one AI Search experience, with a path from an Overview into AI Mode follow-ups.
Where identity and security fit
Personal Intelligence connects AI Mode to Gmail and Google Photos, so account security and connected-app permissions matter. Organisations deciding whether staff may use consumer AI search for work should read the Safe Use of AI Chatbots Guide; Google's managed workplace option is covered in the Gemini for Google Workspace Security Guide.
Practitioner checklist
- Confirm key pages are indexed and snippet-eligible with the URL Inspection tool.
- Review nosnippet, data-nosnippet and max-snippet use, since they also limit AI feature display.
- Do not rely on Google-Extended to keep content out of AI Mode; it governs other systems.
- Track AI Mode and AI Overviews traffic in Search Console under the Web search type, and compare before and after major Google updates.
- If you advertise in a listed market, review how "Sponsored" placements in AI Mode and multiturn ads fit your campaigns.
- For work use, set a policy on connecting Personal Intelligence to corporate mail and on personal versus managed Google accounts.
- Recheck model, market and feature facts on Google's posts before decisions; they change frequently.
Standards and references
- Google Search Help: Get AI-powered responses with AI Mode
- Google Search Central: AI features and your website
- Google: I/O 2026 announcements
- Google: More ways to connect with the web from Search
- Google: Ads in AI Mode expansion
- Google: AI Mode in Google Search, I/O 2025
- Google: Expanding AI Overviews and introducing AI Mode
Related NHI Mgmt Group resources: AI Answer Engines Hub · Google AI Overviews Explained · Google AI Mode vs ChatGPT Search · Ads in AI Answers Tracker