AI Search Feature Tracker
Every major update across AI search platforms. Filterable. Updated monthly. Bookmark this page.
Sponsored Stores Appear Inside Google AI Mode Product Panels
Paid Sponsored Stores listings began appearing inside Google AI Mode product panels in late March 2026, placing advertiser placements above organic store listings in the product sidebar. A companion Quick results from the web block also surfaced, showing direct retailer links at the top of AI Mode responses before the AI-generated answer loads. Google has not formally announced either feature. First confirmed sighting was March 25, 2026 by search analyst Glenn Gabe.
Google Commits to Publisher Opt-Out from AI Overviews Under CMA Pressure
Google committed in March 2026 to eventually allow publishers to opt out of AI Overviews and AI Mode while remaining in traditional search results, under pressure from the UK Competition and Markets Authority (CMA), which had granted Google Strategic Market Status. No implementation timeline was provided. The Publishers Association cited a 19% decline in click-through rates to academic reference services as evidence of AI search impact on publisher traffic.
Bing Widens Copilot Integration Across US Desktop Search
Microsoft began broadly expanding Copilot inside Bing on desktop for US users in late March 2026, converting more standard searches into on-page AI conversations instead of returning a traditional list of links. The rollout builds on Copilot Search experiments that ran throughout 2025 and signals Microsoft growing more confident in a summary-first layout for everyday desktop queries.
Google Tests AI-Generated Headline Rewrites in Search Results
Google confirmed on March 20 it is testing AI-generated title rewrites in traditional search results. Unlike its existing system of selecting on-page text, this experiment generates novel headline text that can shorten, reword, or shift the tone of publisher headlines. One example condensed a 15-word headline to 4 words, changing the original meaning.
GPT-5.4 Mini and Nano Available to Free Users
OpenAI released GPT-5.4 mini and GPT-5.4 nano on March 17. GPT-5.4 mini is now free for all ChatGPT users via the Thinking toggle, scoring 88.01% on GPQA Diamond and running more than 2x faster than GPT-5 mini. GPT-5.4 nano is available via API at $0.20 per million input tokens for lightweight agentic tasks.
Google March 2026 Core Update Begins Rolling Out
First broad core update of 2026 started March 27, expected to take up to two weeks. Arrives two days after the March 2026 spam update completed.
Google March 2026 Spam Update Completes in Under 20 Hours
March 2026 spam update rolled out March 24-25 in under 20 hours. The shortest confirmed spam update. Targets cloaking, link spam, and content abuse.
ChatGPT Shopping Adds Visual Search and Comparisons
ChatGPT improved shopping with richer product results, image-based similar item search, side-by-side comparisons with price/reviews/features.
Apple's World Knowledge Answers AI Search Engine Nearing Launch
Apple preparing to launch World Knowledge Answers with iOS 26.4. Transforms Siri into an answer engine with AI-generated summaries. Will expand to Safari and Spotlight.
Google AI Mode Adds 53 More Languages
Google AI Mode expanded to 53 additional languages, significantly broadening non-English coverage beyond the original six languages.
OpenAI Retires Legacy Deep Research Mode
OpenAI removed legacy deep research mode. Current deep research (upgraded to GPT-5.2 in February) remains with improved site-specific search capabilities.
Search Live Expands Globally with Gemini 3.1 Flash Live
Google Search Live. Interactive voice and camera conversations in AI Mode. Now available in all languages and locations where AI Mode is offered, covering 200+ countries. Powered by Gemini 3.1 Flash Live, a new inherently multilingual audio model for more natural conversations.
AI Overviews at 48-60% of US Queries
AI Overviews now appearing on 48-60% of US queries according to Ahrefs and BrightEdge data. Up from ~34% in late 2025, a 58% increase in twelve months.
ChatGPT Shopping Expanding to More Categories
ChatGPT Shopping powered by specialised GPT-5 mini model. Product recommendations with images, pricing, and direct purchase links. Merchants like Target, Sephora, and Best Buy feeding product catalogs directly.
ChatGPT Search Cites 20% Fewer Domains After GPT-5.3 Instant Rollout
Analysis of 27,000 ChatGPT Search responses tracked by Resoneo over 14 weeks found that average unique domains cited per response dropped from 19 to 15 (a 20% decline) and unique URLs fell from 24 to 19 following GPT-5.3 Instant becoming the default model in early March 2026. The URLs-per-domain ratio remained stable at 1.0, indicating the model goes equally deep into each source but selects fewer sites overall. Server log data from Oncrawl confirmed reduced ChatGPT-User bot crawl frequency on previously-visited pages.
AI Bot Traffic Surges 300%, Publishers See 96% Less Referral Traffic Than Search
Akamai Technologies published its State of the Internet report on April 8, 2026, revealing AI bot activity surged 300% in 2025 with media and publishing the hardest-hit sector. OpenAI generated the highest volume of AI bot traffic, with publishing accounting for 40% of all OpenAI crawler requests. AI chatbots now deliver approximately 96% less referral traffic than traditional Google search, with users clicking cited sources roughly 1% of the time.
Perplexity Hits 100M Monthly Users and $450M ARR in Pivot to AI Agents
Perplexity confirmed over 100 million monthly active users and annualized recurring revenue surpassing $450 million in March 2026, a 50% increase in a single month. The growth was driven by its pivot from AI-powered search to autonomous agents via its Computer product, which orchestrates up to 19 AI models from OpenAI, Anthropic, and Google to execute multi-step tasks. The company also reported tens of thousands of enterprise customers and shifted to usage-based pricing.
Google AI Overviews: 91% Accurate But 56% of Correct Answers Lack Source Support
A study by AI startup Oumi and The New York Times found Google AI Overviews answered factual benchmarks correctly 91% of the time in February 2026, up from 85% in October 2025. However, 56% of those correct responses were "ungrounded", meaning the linked sources did not fully support the AI-generated answer, a significant worsening from 37% in October 2025. At Google's scale of 5 trillion annual searches, this means tens of millions of answers per hour may be unverifiable by the cited sources.
Google March 2026 Core Update Completes After 12 Days
Google's first broad core update of 2026 completed its rollout on April 8, 2026 after launching on March 27, a 12-day duration making it the second-fastest core update completion in recent history. Google described it as a regular update designed to better surface relevant, satisfying content for searchers from all types of sites, with no companion blog post or specific new guidance published.
Google Gemini Overtakes Perplexity as #2 AI Referral Source to Websites
Statcounter March 2026 data shows Google Gemini surpassed Perplexity to become the second largest AI referral source to websites. Gemini reached 8.65% of AI referrals, up from 2.31% year-over-year, while Perplexity fell to 7.07% from 12.07% in April 2025, a decline of more than 40%. ChatGPT maintained dominant 78.16% share. Claude grew from 1.37% in February to 2.91% in March, with a weekly peak of 3.6% in mid-March before partially retreating.
Search Live Expands Globally with Voice and Camera Input
Google expanded Search Live to 200+ countries where AI Mode is available. Users can now use voice and camera input for hands-free troubleshooting and visual search queries. Canvas feature for creative writing and coding also launched in AI Mode across the US.
Personal Intelligence Expands Across AI Mode and Gemini
Google's Personal Intelligence feature expanded across AI Mode, Gemini in Chrome, and the Gemini app in the US. The feature connects to Gmail, Google Photos, and other personal data to provide personalised AI search responses. Users can opt in to let Google's AI reference their personal information when answering queries.
Google Ask Maps Launches Conversational Local Search
Google launched Ask Maps on March 12, 2026, in the US and India on Android and iOS. Powered by Gemini, the feature lets users ask complex natural language questions about local places and receive contextual AI recommendations. Users can book restaurant reservations, save places to lists, and share locations directly from the conversation. Desktop availability is coming soon.
Yahoo Scout Launches as Claude-Powered AI Answer Engine
Yahoo launched Scout in beta on January 27, 2026, an AI answer engine powered by Anthropic's Claude and Microsoft Bing's grounding API. Available to approximately 250 million US users across Yahoo Search, Mail, News, Finance, and Sports, Scout delivers direct answers with source attribution, affiliate commerce recommendations, and Microsoft Advertising-powered ads on a CPC model.
Google Direct Offers Brings Retailer Discounts Inside AI Mode
Google announced Direct Offers on January 11, 2026 at the National Retail Federation, a new Google Ads pilot that surfaces exclusive retailer discounts directly inside AI Mode when high purchase intent is detected. Google's AI matches verified Merchant Center offers to shopper queries automatically. Pilot partners include Petco, e.l.f. Cosmetics, Samsonite, Rugs USA, and Shopify merchants.
AI Overviews Upgraded to Gemini 3 as Default Model
Gemini 3 became the default model for all AI Overviews globally. Users can now seamlessly jump from AI Overviews into AI Mode conversations.
ChatGPT Launches Ads for Free and Go Users
OpenAI began testing ads in ChatGPT for Free and Go plan users. US pilot crossed $100M annualized revenue within six weeks. Expanding to Canada, Australia, and New Zealand.
Bing Webmaster Tools Launches AI Performance Dashboard
Microsoft launched AI Performance in Bing Webmaster Tools. First major search platform to offer dedicated GEO metrics. Shows citation counts across Copilot and Bing AI summaries.
Samsung Galaxy S26 Ships with Perplexity Built-In
Every Galaxy S26 ships with Perplexity pre-installed as a system-level AI assistant with its own wake word, deeply embedded across Samsung apps.
Google AI Mode Hits 75 Million Daily Active Users
Google AI Mode crossed 75 million daily active users. Now supports shopping ad formats that surface retailer recommendations alongside organic results.
Perplexity Abandons Advertising
Perplexity officially stops accepting new advertisers, citing user trust concerns. Executives state ads are 'misaligned with what users want' and could cause users to 'start doubting everything.'
Copilot Vision Mature on Windows + Mobile
Copilot Vision, launched June 2025, now stable across Windows 11, iOS, and Android. Can see and interpret what's on your screen and answer questions about web pages.
Perplexity Pauses Ad Sales
Perplexity pauses accepting new advertisers. Only original launch partners from November 2024 continue testing. Ad sales head Taz Patel departed in August.
AI Overviews for Commercial Queries
AI Overviews begin appearing for commercial and transactional queries, not just informational. Shopping, local, and travel verticals heavily affected.
GPT-5 Released
OpenAI releases GPT-5 on August 7, 2025 with significantly improved reasoning. GPT-4.5 phased out for Plus/Teams users. Free for all ChatGPT users.
Perplexity Comet Plus: Publisher Revenue Sharing
Perplexity launches Comet Plus ($5/month subscription) with 80/20 revenue split. 80% to publishers. $42.5M allocated to the program. Partners include Time, Fortune, LA Times.
AI Mode Goes Global
Google AI Mode expands to 180+ countries after US launch in May 2025. Supports English, Hindi, Indonesian, Japanese, Korean, and Brazilian Portuguese.
Copilot Vision Launches in US
Microsoft launches Copilot Vision on June 12, 2025. AI can see and interpret what's on your screen, answer questions about web pages. Available on Windows 11, iOS, Android.
Google I/O: AI Mode Launches as Core Search Experience
Google I/O 2025 (May 20) announces AI Mode as a core Search experience powered by Gemini 2.5. Launches to all US users. Supports complex multi-step queries and follow-ups.
AI Overviews in 200+ Countries and 40+ Languages
AI Overviews expanded to over 200 countries and territories, supporting 40+ languages including Arabic, Chinese, Malay, and Urdu. 1.5 billion monthly users.
Claude Web Search Available Globally on All Plans
Anthropic's Claude web search, first launched for US paid users in March 2025, now available globally on all plans including free tier as of May 27, 2025.
AI Overviews Quality Improvements
AI Overviews show fewer hallucinations, better source attribution, and expandable citations. Powered by custom Gemini 2.5 model in the US.
Claude Gets Web Search (US Paid Users)
Anthropic adds web search to Claude on March 21, 2025, starting with paid subscribers in the US. Claude 3.7 Sonnet can access real-time web information.
March 2025 Core Update
First core update of 2025. Started March 13, completed March 27. Significant ranking volatility with major spikes around March 16 and 26.
GPT-4.5 Released
OpenAI releases GPT-4.5 on February 27, 2025 with improved reasoning and reduced hallucination. Available to Plus and Pro subscribers.
ChatGPT Search Free for All Users
ChatGPT Search becomes available to everyone on February 5, 2025. No signup required. Previously limited to Plus/Pro subscribers and logged-in users (from Dec 16, 2024).
Copilot Repositioned as Primary Microsoft AI Interface
Copilot rebranded and repositioned as Microsoft's primary AI interface. Deep integration with Edge, Windows, and M365.
Perplexity Launches Advertising
Perplexity introduces sponsored follow-up questions in the 'Related Questions' section with brand partners including Indeed, Whole Foods, and Universal McCann.
ChatGPT Search (SearchGPT) Launches
ChatGPT Search launches October 31, 2024, evolving from the SearchGPT prototype. Real-time web browsing with cited sources. Initially for Plus and Team users.
AI Overviews Expand to 100+ Countries
AI Overviews expanded to more than 100 countries and territories on October 28, 2024. Supports English, Hindi, Indonesian, Japanese, Portuguese, and Spanish. Over 1 billion monthly users.
Google I/O: AI Overviews Launch in US
Google I/O 2024 (May 14) reveals AI Overviews, rebranded from SGE. Rolls out to all US users during week of May 20. Plans to reach 1 billion users by year end.
Perplexity Pages Launches
Perplexity launches Pages on May 30, 2024. A feature for turning research into shareable, formatted articles with cited sources.
How to Use This Tracker
If you're an SEO practitioner or brand owner, use this page to:
- Stay current on what each AI search platform is doing. Without reading 20 different sources
- Prioritise your AI SEO work. Focus on the platforms making the biggest changes
- Brief your team or clients. Share this page as a single reference for AI search developments
- Spot opportunities early. New features often create first-mover advantages