Updated: 23 April 2026 · Originally published: 21 May 2025
When Google I/O 2025 closed out on 21 May, most of the big reveals were promises. AI Overviews were being 'rebranded' as AI Mode. Gemini Agents were a framework slide. Project Mariner was a tab demo. Gemini Nano was shipping on-device but almost nobody had tried it. We wrote this recap the next morning and — like every other recap — had to grade announcements that hadn't actually reached users yet.
It's now April 2026. Google I/O 2026 is three weeks away (19–20 May at Shoreline). Cloud Next 2026 has just finished the enterprise argument. And on the consumer side — the side this post was always about — we finally know what I/O 2025 actually meant. So we've updated it.
The 2026 Reality Check: What I/O 2025 Actually Shipped
The short version: almost all of it shipped, faster than expected, and the scale is bigger than the keynote implied.
- AI Mode in Search crossed 75 million daily active users and over 100 million monthly active users by early 2026 — a 4x increase since launch, and one of the fastest consumer adoption curves in Google's history.
- Gemini 3.1 Pro became the default model across Gemini apps and AI Overviews globally on 19 February 2026, superseding 2.5 Pro.
- Personal Intelligence — Gemini connected to your Gmail, Drive, Photos, YouTube and Calendar — expanded to all free-tier US users on 17 March 2026, with a 2-billion-user rollout underway across 200+ countries.
- Gemini apps passed 750 million users, and Gemini 3 is now the engine behind AI Overviews, which now appear on roughly 48% of all Google queries — up 58% from December 2025.
That is the inverse of the usual post-keynote pattern, where 70% of what was announced quietly disappears. Google shipped.
AI Mode: From Experiment to 75 Million Daily Users
AI Mode was the single most consequential announcement at I/O 2025, and the one this post originally treated as a minor bullet ('AI Overviews rebranded, now more conversational'). That was wrong. AI Mode is not a rebrand. It's a different search surface.
In AI Mode, the classic search results page is mostly gone. You get a multi-turn Gemini conversation where the follow-up question is the primary interaction, links are citations rather than destinations, and Google's ranking job is to decide what to synthesise, not what to list. Twelve months in:
- 75M daily / 100M+ monthly active users, per Google's Nick Fox.
- Expanded to 40+ markets and 53 languages, including the UK and most of Europe.
- Search Live — the voice-and-camera version — rolled out everywhere AI Mode is available, letting users point a camera at a broken appliance or a foreign menu and get an answer in real time.
- Circle to Search can now decompose a photo of an outfit into every shoppable component.
The SEO consequence is the one every marketing leader should already have priced in. On queries where AI Mode or AI Overviews fire, click-through to the classic blue-link results collapses — widely-cited Pew research and subsequent industry data show CTRs down anywhere from 30% to 70% on informational queries when AI is present. Your top-of-funnel content is now drafted by Gemini, not clicked to.
Gemini 3.1 Pro and the Rise of Personal Intelligence
I/O 2025 introduced 'Gemini 2.5 Pro' and 'Gemini Ultra 2' alongside a £19.99 / £249 pricing tier that is now obsolete. The 2026 lineup is different and worth knowing:
- Gemini 3.1 Pro (Feb 2026) — the current frontier model; free users get limited access, Google AI Pro (~£18.99/mo) gets full access, Google AI Ultra (~£239/mo) gets the full multimodal + Veo / Imagen stack.
- Google AI Plus — a new middle tier introduced in late 2025, sitting between free and Pro.
- Personal Intelligence — the feature most underestimated at I/O 2025. This is Gemini with persistent, opt-in access to your Google graph: Gmail, Drive, Photos, YouTube, Calendar, Search history. Ask 'what was the name of the restaurant Sarah recommended in March?' and it answers without you copy-pasting an email in. This is Project Astra, finally.
Personal Intelligence is the move that makes Gemini structurally different from ChatGPT. OpenAI has memory; Google has your inbox.
Gemini Agents and Agent Mode, One Year Later
I/O 2025 previewed Gemini Agents and Project Mariner. In 2026 those have matured into two separate products:
- Agent Mode in the Gemini app — a consumer-facing mode where Gemini plans and executes multi-step tasks (find a flight, book a restaurant, compile a research report). It's the commercial descendant of Project Mariner and the reason queries like 'gemini agent mode' and 'agent mode gemini' are climbing fast.
- Chrome's Gemini side panel with agentic browsing — rolled out January 2026 — which puts the agent inside the browser tab, where Mariner always belonged.
For marketers, the important shift is that 'Gemini agents' are no longer a developer abstraction. They are a UI your customers now use to do things on the open web, including buying things. Which brings us to the commerce layer.
Search Becomes a Checkout: Shopping, Direct Offers and Magic Cue
Possibly the most important 2026 development for marketing leaders — and the one the original post didn't anticipate at all — is that Google has quietly turned AI Mode into a checkout surface.
- Direct Offers inside AI Mode lets brands surface discounts to shoppers inside an AI-generated answer.
- In-Gemini checkout — you can now buy items from Etsy and Wayfair directly inside Gemini, with more retailers rolling in. Bloomberg and PYMNTS both covered the consumer rollout in February.
- Magic Cue in Gemini surfaces contextual recommendations (restaurants, products, places) inside other conversations — so your brand can appear inside a friend-to-friend chat thread as a suggestion, without a paid placement in the classic sense.
- Ads in AI Mode: Google disclosed that ads now appear in roughly 25% of AI-generated results, and the formats are evolving quickly.
If 2024 was the year you optimised for AI Overviews citation, 2026 is the year you optimise for Direct Offers eligibility and in-Gemini checkout integration. The funnel has collapsed. Awareness, consideration, conversion — same surface.
What I/O 2025 Promised vs What 2026 Delivered
For historical completeness, here's how the I/O 2025 promises actually cashed out:
- Gemini 2.5 Pro / Flash / Ultra 2 → Replaced by Gemini 3 (late 2025) and Gemini 3.1 Pro (Feb 2026).
- AI Mode as a rebrand of AI Overviews → Became a distinct search surface with 75M DAUs.
- Project Mariner → Shipped as Chrome's Gemini side panel and Agent Mode.
- Project Astra → Shipped as Personal Intelligence + Search Live.
- Gemini agents framework → Shipped as the consumer-facing Agent Mode plus the separate Gemini Enterprise Agent Platform (covered in our Cloud Next 2026 write-up).
- Imagen 4 / Veo 3 / Lyria 2 → All shipped; Veo 3 in particular became the default model now powering a generation of marketing-video tools.
- Pricing (£19.99 / £249) → Reshuffled into Google AI Plus / Pro / Ultra tiers.
The takeaway is uncomfortable for anyone who treated I/O 2025 as hype: Google delivered the consumer roadmap almost in full, and the distribution numbers (750M Gemini users, 75M AI Mode DAUs, 48% of queries showing AI Overviews) mean your customers are now living inside it.
What This Means for Marketers in the AI Mode Era
If the last decade of SEO was about ranking for a query, the next decade is about being synthesised into the answer. Three practical implications:
- Your content is now training data for Gemini's answer, not a destination. Editorial depth, named authors and specific claims with sources get cited more often than thin SEO pages. The E-E-A-T playbook just became load-bearing.
- Brand mentions inside AI Mode are a new media channel. Direct Offers, in-Gemini checkout and Magic Cue recommendations collapse paid and organic into a single placement: does Gemini recommend you in the chat?
- Speed of response matters more than ever. When a platform shift happens (I/O, Cloud Next, a Gemini 3.1 release), the brands that publish an authoritative take the same day get cited for months. The brands that publish three weeks later are invisible.
You cannot hit any of those three with a retained agency on a 4-week content cycle and a freelancer roster. You need a marketing function that can publish, optimise and ship in hours. Which is the category we built Anjin to own.
Anjin: The Marketing Operating System for the AI Mode Era
Anjin is the Marketing Operating System — a single platform that runs your entire marketing function on curated, brand-aware agents. If Google has given you AI Mode, Personal Intelligence and Agent Mode on the consumer side, Anjin is the mirror on the marketer side: a system that thinks, writes, ships and measures at AI speed, for your brand specifically.
What Anjin does that horizontal AI doesn't:
- Drafts, approves and publishes content across channels in hours, not weeks — so you're cited inside AI Mode answers the day news breaks.
- Learns your brand voice in hours, not months. It writes like you, not like Gemini's default tone.
- Runs continuous SEO and GEO (generative engine optimisation) — structured for AI Overviews citation, not just blue-link rankings.
- Connects content, paid, email and reporting into one pipeline — replacing the 14 spreadsheets, Slack threads and Notion docs currently holding your marketing together.
Gemini will draft a paragraph. Anjin runs your marketing department.
The £888 Lifetime License — Offer Closing Soon
Lifetime access to Anjin for a one-time payment of £888. Not a subscription. Not a seat. Not a trial. One payment, unlimited use, for as long as Anjin exists.
The average marketing team spends £888 in about three working days on tooling, freelancers and coordination software. You're buying the platform that replaces most of it — once.
This price will not be offered again once we close our early-access cohort.
Claim your £888 Anjin lifetime license →Founders, agency owners and in-house marketers — this is how you run marketing at AI speed without the team, the burn, or another year of waiting.
Sources: Google Blog — March 2026 AI updates, Google Blog — AI Mode and AI Overviews Gemini upgrades, 9to5Google — Google AI Plus, Pro, Ultra features (April 2026), Bloomberg — Google AI shopping features, PYMNTS — Google shopping feature in Search and Gemini, Tech Insider — Gemini 750M users + 3.1 Pro launch, Digital Applied — Google AI Mode 75M users, MacRumors — Chrome Gemini side panel and agentic browsing, Google Developers Blog — Get ready for Google I/O 2026
