AI Search Feature Tracker

Every major update across AI search platforms. Filterable. Updated monthly. Bookmark this page.

52 Changes Tracked
7 Platforms
2024-2026 Timeline Span
March 2026
Google Mar 2026

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.

SEO Impact: Retailers now face paid competition inside AI Mode product panels alongside organic citation. Brands without an AI Mode shopping ads strategy risk being outranked by sponsored placements even when their organic content is cited. Merchants should review Merchant Center eligibility and Shopping Ads setup for AI Mode placement.
Google Mar 2026

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.

SEO Impact: Publishers will gain formal control over AI Overviews participation, but the timeline for implementation remains unconfirmed. The key unresolved question is whether opting out of AI Overviews will negatively affect regular organic rankings. SEOs should monitor CMA proceedings and Google formal implementation guidance before advising clients on opt-out strategy.
Copilot Mar 10, 2026

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.

SEO Impact: Broader Copilot coverage in Bing desktop means fewer traditional blue-link clicks for US organic results. SEOs should monitor Bing referral traffic and optimise content for Copilot citation with clear structured answers, not just keyword targeting.
Google Mar 14, 2026

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.

SEO Impact: This goes beyond algorithmic title rewriting: AI is now generating headlines publishers never wrote. Write tight, query-specific titles to reduce the likelihood of AI substitution and ensure your brand voice and factual framing are preserved in SERPs.
ChatGPT Mar 21, 2026

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.

SEO Impact: Near-flagship AI reasoning is now accessible without a subscription, expanding the pool of users relying on ChatGPT for research. Higher-quality free-tier responses mean more users will get AI-generated answers before ever visiting a website.
Google Mar 13, 2026

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.

SEO Impact: Core updates reshape rankings across all verticals. Monitor rankings closely over the next two weeks and avoid major site changes until rollout completes.
Google Mar 15, 2026

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.

SEO Impact: Sites relying on cloaking, manipulative link schemes, or scaled content abuse face immediate deindexation. Clean link profiles and transparent content are essential.
ChatGPT Mar 27, 2026

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.

SEO Impact: Visual product content and structured comparison data become ranking signals in ChatGPT shopping. Product images and schema markup are now table-stakes.
Apple Mar 6, 2026

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.

SEO Impact: A new AI search surface reaching over a billion Apple devices. SEOs will need to understand Apple's citation model and how Safari/Spotlight source content.
Google Mar 26, 2026

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.

SEO Impact: International SEO now intersects with AI Mode optimisation. Multilingual content strategies must consider AI Mode citation in local languages.
ChatGPT Mar 7, 2026

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.

SEO Impact: Deep research now supports site-specific searches, meaning users can direct ChatGPT to research within specific domains. Being a trusted, crawlable source matters more.
Google Mar 26, 2026

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.

SEO Impact: Search Live lets users ask questions aloud or point their camera for real-time answers. Content needs to be structured for voice-friendly, concise responses and visual context recognition. Multimodal search is no longer experimental. It's global default.
Google Mar 24, 2026

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.

SEO Impact: More than half of informational queries now get AI-generated answers. Content needs to be structured for extraction and citation.
ChatGPT Mar 5, 2026

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.

SEO Impact: E-commerce brands need product feeds and structured data optimised for ChatGPT's shopping crawl.
April 2026
ChatGPT Apr 2026

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.

SEO Impact: With ChatGPT Search citing roughly 20% fewer domains per response, the citation pool has narrowed significantly. Sites not already in the top cited sources face stiffer competition for a smaller share of references. Practitioners should prioritise domain authority, consistent expert authorship, and structured content that aligns closely with query intent to maintain or gain citation in the narrower selection set.
Google Apr 2026

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.

SEO Impact: Publishers face two distinct threats: training bots that scrape content for model development with no traffic return, and fetcher bots that extract real-time content to answer queries without sending users to the source. SEO practitioners should separate AI referral traffic from organic search in analytics, monitor bot activity in server logs, and explore licensing frameworks or pay-per-crawl solutions to recover value from AI-driven content consumption.
Perplexity Apr 2026

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.

SEO Impact: Perplexity has crossed 100 million monthly users and is now growing faster than its search competitors, validating it as a primary AI discovery channel alongside ChatGPT and Google AI Mode. The pivot to autonomous agents means Perplexity citations increasingly drive commercial decisions, not just informational queries. Publishers and brands in enterprise, finance, health, and professional verticals should treat Perplexity GEO as a high-priority investment.
Google Apr 2026

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.

SEO Impact: Content targeting AI Overviews citation must directly and completely substantiate every claim on the page itself. If the AI generates the correct answer but cites your page and the page does not fully support it, the citation is flagged as ungrounded. Precise alignment between the answer and the supporting evidence on the page is now a practical ranking requirement for AI Overviews.
Google Apr 2026

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.

SEO Impact: With the rollout complete, practitioners can now compare Search Console data using pre-March 27 performance as the baseline against post-April 8 data. Experts recommend waiting at least one week before drawing conclusions. Sites affected by ranking drops are advised to focus on helpful, reliable, people-first content, as recovery from core updates typically arrives through future updates rather than immediate fixes.
Google Apr 2026

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.

SEO Impact: The AI referral landscape has shifted. Gemini ecosystem integration across Search, Android, Chrome, and Workspace is driving stronger referral performance than standalone platforms. SEO practitioners should prioritise Google AI Mode and AI Overviews optimisation as the primary AI referral channel after ChatGPT, while monitoring Perplexity decline and Claude growth.
Google Apr 1, 2026

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.

SEO Impact: Multimodal search (voice + camera) means content needs to be optimised for conversational queries and visual recognition, not just typed keywords. Product images, video content, and structured data become more important as visual search grows.
Google Apr 1, 2026

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.

SEO Impact: Personalised AI search means different users may see different AI-generated answers for the same query. Brand recognition and prior user interaction become ranking signals. Businesses with existing customer relationships (email subscribers, repeat visitors) may get preferential citation in personalised results.
Google Mar 12, 2026

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.

SEO Impact: Local businesses now compete for visibility inside AI-mediated conversational queries in Google Maps. Google Business Profile accuracy, reviews, and structured attributes become more critical as Ask Maps surfaces recommendations based on Gemini reasoning rather than traditional keyword matching.
January 2026
Yahoo Jan 2026

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.

SEO Impact: Yahoo Scout adds another AI search surface for SEO practitioners to optimise for, extending beyond Google and ChatGPT. Content structured for Claude-powered retrieval with clear entity relationships and supporting sources has the best chance of citation. Brands with strong Yahoo audience overlap in news, finance, and sport should treat Scout as a distinct AI discovery channel.
Google Jan 2026

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.

SEO Impact: Shopping brands now compete for paid placement inside AI Mode conversations alongside organic citations. Direct Offers means product visibility in AI search has both paid and organic dimensions. Organic product content, structured data, and Merchant Center feed accuracy become critical to maintain unpaid presence as ads enter the AI search layer.
Google Jan 22, 2026

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.

SEO Impact: Gemini 3 brings improved reasoning and source selection to AI Overviews. Content cited in overviews may shift as the model better understands topical authority.
February 2026
ChatGPT Feb 12, 2026

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.

SEO Impact: ChatGPT monetising through ads creates a new paid visibility channel alongside organic citations. Brands may soon need ChatGPT ad strategies.
Copilot Feb 18, 2026

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.

SEO Impact: First actionable GEO analytics from a major search engine. SEOs can now measure AI citation performance directly rather than estimating from traffic drops.
Perplexity Feb 22, 2026

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.

SEO Impact: Perplexity gains massive distribution through Samsung's hardware. Mobile-first content optimisation for Perplexity citation becomes critical as millions of new users onboard.
Google Feb 10, 2026

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.

SEO Impact: AI Mode is no longer niche. 75M DAU means it is a mainstream search surface. Paid and organic strategies must account for AI Mode visibility.
Perplexity Feb 3, 2026

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.'

SEO Impact: Organic citation in Perplexity becomes the only visibility channel. Content quality and authority signals are the sole path to appearing in answers.
Copilot Feb 15, 2026

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.

SEO Impact: Content that's visually clear and well-structured benefits from screen-reading AI capabilities. Copilot increasingly contextual.
Q4 2025
Perplexity Oct 20, 2025

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.

SEO Impact: Signal that AI search engines are struggling to monetise with ads. Organic citation remains primary visibility path.
Q3 2025
Google Sep 15, 2025

AI Overviews for Commercial Queries

AI Overviews begin appearing for commercial and transactional queries, not just informational. Shopping, local, and travel verticals heavily affected.

SEO Impact: Product pages and commercial content now affected. E-commerce SEO strategies need AI Overview consideration.
ChatGPT Aug 6, 2025

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.

SEO Impact: Higher-quality source selection means authoritative, well-cited content is increasingly favoured over thin pages.
Perplexity Aug 20, 2025

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.

SEO Impact: Allowing PerplexityBot in robots.txt now has a direct revenue incentive for publishers whose content is cited.
Google Jul 10, 2025

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.

SEO Impact: AI Mode no longer a US-only experiment. Australian and APAC SEOs need to optimise for both traditional rankings AND AI Mode citations.
Q2 2025
Copilot Jun 12, 2025

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.

SEO Impact: Copilot becoming more contextual. Content that's visually clear and well-structured benefits from screen-reading capabilities.
Google May 20, 2025

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.

SEO Impact: Google's commitment to AI-first search confirmed. Traditional blue links declining for informational queries. AI SEO strategy now essential.
Google May 14, 2025

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.

SEO Impact: AI Overviews are now truly global. Every market needs an AI Overview optimisation strategy.
Claude May 8, 2025

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.

SEO Impact: Another AI platform to optimise for. Ensure ClaudeBot is allowed in robots.txt. Claude now competing as a search alternative.
Google May 14, 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.

SEO Impact: Google increasingly citing pages with strong E-E-A-T signals. Author expertise and source credibility matter more.
Q1 2025
Claude Mar 13, 2025

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.

SEO Impact: Claude enters the AI search race. Brand presence across authoritative sources now matters for Claude citations too.
Google Mar 12, 2025

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.

SEO Impact: Sites with thin content, weak E-E-A-T, or poor technical foundations hit hardest. Reddit continued to surge. Content quality bar raised again.
ChatGPT Feb 27, 2025

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.

SEO Impact: Higher-quality language model means better source selection. Authoritative, well-cited content increasingly favoured.
ChatGPT Feb 12, 2025

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).

SEO Impact: Massive expansion of AI search user base. Track AI-referred traffic via utm_source=chatgpt.com in GA4.
Copilot Jan 22, 2025

Copilot Repositioned as Primary Microsoft AI Interface

Copilot rebranded and repositioned as Microsoft's primary AI interface. Deep integration with Edge, Windows, and M365.

SEO Impact: Copilot no longer optional. It's the default search experience for Microsoft ecosystem users.
2024
Perplexity Nov 12, 2024

Perplexity Launches Advertising

Perplexity introduces sponsored follow-up questions in the 'Related Questions' section with brand partners including Indeed, Whole Foods, and Universal McCann.

SEO Impact: Organic citation in Perplexity now competes with paid placements. Quality and authority signals become more important.
ChatGPT Oct 31, 2024

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.

SEO Impact: A new search engine is born. Optimising for ChatGPT becomes a distinct discipline.
Google Oct 28, 2024

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.

SEO Impact: AI Overviews no longer a US-only concern. Reaching over 1 billion users monthly globally.
Google May 14, 2024

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.

SEO Impact: The moment AI search went mainstream. Every SEO strategy needs an AI component from this point forward.
Perplexity May 30, 2024

Perplexity Pages Launches

Perplexity launches Pages on May 30, 2024. A feature for turning research into shareable, formatted articles with cited sources.

SEO Impact: Being cited in Perplexity Pages creates persistent backlink-like references. Authoritative, well-structured content gets cited more.

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

Deep Dives by Platform

About the Author

Lawrence Hitches is an AI SEO consultant based in Melbourne and Chief of Staff at StudioHawk, Australia's largest dedicated SEO agency. He specialises in AI search visibility, technical SEO, and organic growth strategy. Leading a team of 115+ across Melbourne, Sydney, London, and the US. Book a free consultation →