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ChatGPT Updates: Search, Ads and Commerce Tracker

Every ChatGPT search, ads and shopping change that matters for site owners, from the SearchGPT prototype to a billion weekly users.

Last updated: Last checked: 1B+ weekly users; search free for everyone; ads live in nine markets on the Free and Go tiers
1B+Weekly active ChatGPT usersCrossed 31st Jul 2026, per OpenAI
6.8%ChatGPT answers citing the webSimilarweb, May 2026; 1.3% a year earlier
58.8%ChatGPT referrals landing on homepagesSimilarweb 2026 landscape report
9Markets with ChatGPT adsFree and Go tiers only

This page tracks ChatGPT as a search and discovery surface: ChatGPT search itself, the advertising rollout market by market, the shopping and commerce experiments, and the crawler and citation mechanics that decide whether your site appears in its answers.

The beat has a defining hazard: OpenAI's most SEO-relevant changes are often never announced. The May 2026 link-prominence change that roughly tripled referral traffic was discovered by measurement, not by an OpenAI post, so this page leans on dated primary coverage and named studies.

We update within a day or two of significant changes, and every claim links to a source we have read.

ChatGPT search and commerce timeline: July 2024 to today

Every significant ChatGPT search, ads and commerce change since the SearchGPT prototype, newest first, from OpenAI's announcements and dated primary coverage. Rows link to our full coverage where it exists.

One dot per milestone since the July 2024 SearchGPT prototype, one lane per event type. Hover a dot to identify it; most dots click through to the entry below.
202420252026Product14Availability3Model3Data9Ads11
DateEventTypeWhy it matters
2026
Health and finance advertisers become eligible, case by caseAdsThe regulated-advice placement block was lifted in April; political and legal services stay barred
Ads launch in Brazil and MexicoAdsThe 7th May list completes; the pilot reaches nine markets and Latin America for the first time
ChatGPT Atlas stops workingProductThe standalone AI browser dies nine months after launch; features move into the desktop app and a Chrome extension
Automatic advanced matching becomes the pixel defaultAdsExisting web pixels switch on 17th August unless the advertiser opts out; carousel ads enter testing
GPT-5.6 Luna becomes the free-tier default; unlimited free chatsModelThe ads-funded free tier loses its message ceiling
1 billion weekly users crossedDataThe weekly-actives series completes its climb from 200M in under two years
Similarweb 2026 Generative AI LandscapeDataCitations at 6.8% of answers; ads in 26% of US desktop chats; gen-AI visit share down to ~50%
Atlas shutdown announcedProductOne-month wind-down begins; agentic browsing redistributes
Ads live in Japan and South Korea; UK self-serveAdsFirst non-English ad markets
Ads go live in the UKAdsFirst market beyond North America and Oceania
Product feeds surface in the Ads ManagerAdsInstant Checkout's feed infrastructure migrates into ad targeting, unannounced
Similarweb quantifies the link changeDataReferrals +157.7% week over week; homepage share jumps to ~60% and holds
Undocumented link-prominence changeProductBrand links become prominent callouts; OpenAI never announced it
Ads expansion announced: UK, Japan, South Korea, Brazil, MexicoAdsAnnounced on LinkedIn; Brazil and Mexico still pending as of August
Self-serve Ads Manager beta, no minimum spendAdsCPC bidding arrives; Criteo discloses 1,000+ brands live
Ads pass $100M annualized; Canada, Australia, NZ confirmedAdsSix weeks from launch to nine figures, per an OpenAI spokesperson via Reuters
Instant Checkout deprioritizedProductCommerce pivots to discovery plus merchant apps routing out
Walmart discloses 3x-lower in-chat conversionDataThe number behind the pivot; ~30 Shopify merchants were live, per Forrester
900M weekly users; 50M paying subscribersDataDisclosed alongside a $110B raise
India: 100M weekly usersDataAltman names OpenAI's largest market and student base
Ads go live in the USAdsFree and Go tiers, sponsored-labeled, sensitive topics excluded
Ads announced; ChatGPT Go worldwideAdsFive advertising principles; the $8 tier ads ride on goes global
2025
Instacart app: groceries and checkout in-chatProductFirst fully integrated commerce app on the Apps SDK
Shopping research launches for all logged-in usersProductA dedicated product-comparison mode; the discovery bet that outlived checkout
Shopify: AI traffic up 7x, AI-attributed orders up 11xDataMerchant-side corroboration of AI commerce, from the Q3 earnings call
PayPal adopts the Agentic Commerce ProtocolProductWallets inside ChatGPT from 2026; ACP's biggest payments endorsement
ChatGPT Atlas launches, macOS firstProductThe browser bet; free at launch, agent mode for paid tiers
Walmart partnership announcedProductThe biggest retailer joins, and later the source of the data that ended checkout
DevDay: Apps in ChatGPT; 800M weekly usersProductChatGPT becomes a platform brands can build inside
Instant Checkout and the ACP launchProductIn-chat buying begins with Etsy; the protocol is open sourced with Stripe
Legacy models restored to the paid pickerModelThe GPT-5 cutover softened after user backlash; GPT-5 stays default
GPT-5 becomes the default for everyoneModelFree users get a reasoning model for the first time
700M weekly usersData4x year over year; 3 billion daily messages
Shopping confirmed global, logged-out users includedAvailabilityEverywhere ChatGPT is available, including Germany
Shopping comes to ChatGPT search; 1B weekly searches disclosedProductOrganic recommendations, no ads, no purchase fee at that time; EU excluded from memory personalization
Search opens to everyone without an accountAvailabilityThe last access gate falls on chatgpt.com
2024
Search rolls out to all free usersAvailabilityAuto-routing of queries to search; settable as the browser default engine
ChatGPT search launchesProductFine-tuned GPT-4o; in-line and sidebar attribution; Plus and Team first
200M weekly usersDataDouble the November 2023 figure; the series this page tracks begins
SearchGPT prototype announcedProductWaitlisted experiment; search crawling separated from model training from day one

Latest updates

Ads

Health and finance advertisers get a route into ChatGPT ads, case by case

The rule most people still quote is the one OpenAI published in February: ads are "not eligible to appear near sensitive or regulated topics like health, mental health or politics". That stopped being the whole picture in April, and OpenAI never went back to update the February post.

The current position sits in OpenAI's ad policies, whose changelog dates the shift to version 1.1 in April 2026: "Medical, legal, and financial advice contexts are no longer categorically blocked from ads by default. Sensitive conversations and other prohibited contexts remain ineligible for ads."

Two separate layers decide whether an ad runs, and only one of them loosened. Placement governs which conversations can carry an ad at all, and that is where the regulated-advice block was lifted. Content governs who may advertise, and there the categories are still restricted.

In the US, OpenAI says it may approve health advertisers case by case for consumer medical devices and wearables, dental services, dietary supplements, disease-awareness campaigns, health insurance, hospitals and urgent care, medical testing, minimally invasive cosmetic procedures, and vision products and services.

Financial advertisers can be approved for auto loans, credit cards, credit monitoring, deposit accounts, financial planning, insurance, investment services, mortgages, personal loans and payment services. Proof of licensure may be required, and both categories are "generally prohibited" outside the US.

What did not change is worth stating plainly. Political content is still disallowed. Legal services still cannot advertise at all, even though legal-advice conversations became eligible to carry ads, which is the one place the two layers point in opposite directions. Sensitive user contexts, including suicide and self-harm, remain off limits.

Search Engine Journal, which set the change out on 12th August, makes the practical point: OpenAI has revised these policies four times in five months, so any campaign assumption more than a few weeks old is worth re-reading.

Correction, 15th Aug 2026. Our ads tracker below said the pilot's rules were "unchanged since launch" and that no ads run on health, mental-health or politics topics. That stopped being accurate in April 2026, so it was wrong when this page was built on 13th August. The tracker and the ads FAQ now describe the current two-layer policy, and the sources are unchanged.

Ads

ChatGPT ads reach Brazil and Mexico, completing the May list at nine markets

OpenAI added a dated update to "Testing ads in ChatGPT", the post it has used as the running record of this rollout since February: "ChatGPT Ads has now launched in the United Kingdom, Mexico, Brazil, Japan, and South Korea. We're continuing to expand to more markets this year."

Three of those five were already live, the UK on 6th June and Japan and South Korea on 22nd June. The new arrivals are Brazil and Mexico, named on 7th May by Benji Shomair, OpenAI's VP of Monetization, and pending for three months after that.

PPC Land reported on 7th August that OpenAI had told advertisers the two markets would launch "in the coming week", and worked out that completing the list would take the pilot to nine countries: the United States, Canada, Australia, New Zealand, the United Kingdom, Japan, South Korea, Brazil and Mexico. Search Engine Roundtable's account of the same advertiser email still had both listed as coming soon.

They are the pilot's first Latin American markets, and its first outside the wealthy English-speaking bloc plus Japan and South Korea. Continental Europe is still absent, which PPC Land ties to the General Data Protection Regulation and the Digital Markets Act applying there directly.

The tier rules are unchanged: ads run on Free and Go only, and every paid tier from Plus upward stays ad-free. The market-by-market picture is in the ads tracker below.

Product

ChatGPT Atlas stops working, nine months after launch

Atlas launched on 21st October 2025, macOS-first with Windows, iOS and Android promised, and OpenAI never confirmed those ports shipped. The shutdown was announced on 9th July and took effect on 9th August, 292 days after launch by our count of the two dates.

OpenAI warned users the browser "may no longer open, browse, or support agentic workflows after that date", per its help-center guidance reported by 9to5Mac. Bookmarks did not transfer automatically.

The features outlive the product. Agentic browsing redistributes across the ChatGPT desktop app, which gains tabs, logins, downloads and extensions, and a ChatGPT extension that works inside Chrome's sidebar. TechCrunch tied the decision to Applications CEO Fidji Simo telling teams to cut back on "side quests".

The pattern is industry-wide: Microsoft retired Copilot Mode in Edge three months earlier. The AI-browser thesis of 2025 has so far ended in features folded back into existing surfaces.

Ads

ChatGPT ad pixels switch to automatic advanced matching by default on 17th August

OpenAI sent ChatGPT Ads advertisers a product update in the week beginning 3rd August setting out nine changes, and one of them carries a hard date. Automatic advanced matching, which uses hashed customer details collected from website forms to attribute more conversions to ads, is already the default for newly created web pixels. On 17th August it switches on for pixels that already exist.

Opting out is the advertiser's job, and the setting sits under Tools, then Conversions, then Data Source, then Edit pixel. No action is required to accept the change, which is the familiar opt-out-with-a-deadline shape platforms use to move an installed base onto a new default.

The compliance question is not settled by the toggle. An advertiser in a jurisdiction with consent requirements is still responsible for having a lawful basis for sending hashed form data to a third party. ChatGPT ads do not run in continental Europe, but UK advertisers operate under an equivalent consent regime.

Two other items in the same update matter for retailers. Conversion-optimised cost-per-click bidding, which began rolling out on 5th June for other campaign types, is now in beta for product feed campaigns, supporting click-billed campaigns with fixed or manual bidding and a positive conversion bid cap.

And OpenAI confirmed it has started testing a multi-product carousel for product feed ads, showing several products from one advertiser in a single unit. The rest of the list is plumbing with real consequences: dynamic URL macros for campaign, ad group, ad and account identifiers, Triple Whale and Hightouch measurement integrations, and pixel validation diagnostics that say why an event was dropped.

OpenAI did not publish any of it. Barry Schwartz posted the contents of the email on 5th August and wrote it up two days later, and PPC Land's account is the fullest. That is this beat's recurring shape: the changes that move money reach advertisers by email and reach everyone else through the trade press.

Model

GPT-5.6 Luna becomes the free-tier default and free text chats go unlimited

OpenAI announced that GPT-5.6 Luna replaces GPT-5.5 as the default for Free and Go users, and that free text chats become unlimited starting the week of 10th August.

OpenAI's internal evaluations claim factual errors are 62% less common with Luna, and 68% with its Sol sibling, than with GPT-5.5-Instant. Those are the vendor's own numbers, so read them as claims rather than benchmarks.

The same day OpenAI published "From asking to doing", a global usage report on how people use ChatGPT.

The strategic reading is simple: the free tier is now ad-supported in seven markets, and removing the message ceiling maximizes the surface those ads run on. Chat model defaults are separate from search: OpenAI has never named the model behind ChatGPT search answers since launch, and we do not guess.

DataChatGPT crosses 1 billion weekly users

OpenAI disclosed the milestone in its post "Building abundant intelligence", and TechCrunch's later coverage describes ChatGPT as having "recently crossed the 1 billion weekly user mark".

The disclosed series, each figure from OpenAI: 200 million weekly users in August 2024, 400 million in February 2025, 700 million in August 2025, 800 million at DevDay that October, 900 million in February 2026 alongside 50 million paying subscribers, and now a billion.

Two reading rules keep the number honest. It counts weekly actives, so it is not comparable with monthly-user figures like Google's 2.5 billion for AI Overviews. And user counts are not search counts: OpenAI's only search-volume disclosure remains the 1 billion web searches per week it stated in April 2025.

Sam Altman also said in February that India alone accounts for 100 million weekly users, OpenAI's largest student base.

StudySimilarweb landscape report: citations reach 6.8% of ChatGPT answers, ads reach 26% of chats

The 38-page report, covered in detail by PPC Land, is the closest thing this beat has to an annual census.

The citation numbers first. The share of ChatGPT answers containing web citations rose from roughly 1.3% in June 2025 to 6.8% in May 2026. That is answers, not queries, and it varies hugely by industry: travel 22.6%, retail 13.5%, finance 8.0%, education 4.8%.

Where the clicks land: 58.8% of ChatGPT referral traffic goes to homepages, roughly double the share before the May link change. Yet 65% of cited URLs sit two or three folders deep in a site. ChatGPT cites deep pages and sends people to brands.

Ads appeared in 26% of US desktop ChatGPT chats by June 2026, five months after launch.

And competition is real: ChatGPT's share of visits to standalone generative-AI sites fell from above 80% in late 2024 to just above 50% in May 2026, even as its US app audience grew 87% year over year. Panel-based measurement, as always, so treat levels as directional and trends as the signal.

AdsChatGPT ads reach Japan and South Korea; UK advertisers get self-serve

Japan and South Korea became the first non-English markets with live ChatGPT ads, per PPC Land, announced once again through a LinkedIn post by Benji Shomair, OpenAI's VP of Monetization, rather than a press release.

The market ledger now reads: US live 9th February, Canada, Australia and New Zealand confirmed 26th March, the UK 6th June, Japan and South Korea 22nd June. Brazil and Mexico, also named in the 7th May announcement, followed on 11th August, completing the list at nine markets.

The UK also gained access to the self-serve Ads Manager beta, which US businesses have had since 5th May.

The full market, tier and exclusion picture lives in the ads tracker below.

AdsMerchant product feeds resurface inside the ChatGPT Ads Manager

E-commerce analyst Juozas Kaziukenas disclosed on LinkedIn that the Ads Manager had gained a Feeds section, reported by PPC Land: up to 1 million SKUs per advertiser, with new e-commerce partners asked to submit a 100-product sample first.

The interface showed feed entries dating back to 1st March 2026, and OpenAI has never published a launch announcement for the feature.

The story underneath is the commerce pivot completing. Product feeds were introduced in September 2025 to power Instant Checkout; after that was deprioritized in March, the same feed pipes migrated into ad targeting.

For merchants, the practical state as of August 2026: the Agentic Commerce Protocol spec remains live at developers.openai.com/commerce, and feed management happens inside ads.openai.com.

DataAn undocumented change makes ChatGPT's brand links dramatically more prominent

Similarweb's measurement, published 25th May, opens plainly: "On May 7th, 2026, ChatGPT began surfacing more prominent links to brands directly within its answers."

Comparing the week before against the week after, total ChatGPT referrals rose 157.7% and homepage referrals 354.7%. The homepage share of all ChatGPT referrals jumped from roughly 26 to 32 percent before the change to around 60 percent after, and held there.

Indexed to the end of April, homepage referrals grew nearly sevenfold while total referrals roughly tripled, and engagement quality per visit improved rather than degraded.

OpenAI never announced any of it. That is this beat's defining hazard: the most SEO-relevant ChatGPT changes tend to be discovered by measurement. A separate OpenAI event landed the same day, the five-market ads expansion announcement, and the two are unrelated.

By the July landscape report, homepages were still taking 58.8% of referral traffic, so the change stuck.

AdsSelf-serve Ads Manager opens to every US business, with no minimum spend

OpenAI's post "New ways to buy ChatGPT ads" opened the self-serve beta to all US businesses at ads.openai.com, with the spend minimum removed and CPC bidding introduced at a recommended 3 to 5 dollars per click, alongside the default 60-dollar CPM.

Named technology partners: Criteo, Kargo, Adobe, Pacvue and StackAdapt. Criteo, the first ad tech partner since March, said more than 1,000 brands were already live through its API connection, with click-through rates about three times comparable formats. Those performance figures are Criteo's own.

PPC Land had tracked a quieter rollout in mid-April with a 50,000-dollar minimum, so the May post formalized and loosened an existing pipeline. Launch pricing in February had been reported at a 60-dollar CPM with a 200,000-dollar commitment, figures OpenAI itself never published.

Conversion-optimized campaigns followed on 5th June for accounts with a conversion event flowing.

ProductOpenAI deprioritizes Instant Checkout and pivots ChatGPT commerce to discovery

OpenAI's own words, quoted by TechCrunch: "We've found that the initial version of Instant Checkout did not offer the level of flexibility that we aspire to provide, so we're allowing merchants to use their own checkout experiences while we focus our efforts on product discovery."

The numbers behind the pivot had surfaced the week before. Walmart confirmed that conversion for products sold directly inside ChatGPT ran three times lower than for products routing users to its own site, per CNBC, with Wired first to report it.

Forrester analyst Emily Pfeiffer put the live Shopify merchant count at roughly 30, against the million-plus promised at launch. Etsy called ChatGPT a valuable discovery channel while describing checkout volume as relatively low.

What replaced it: a discovery experience that finds products from an image or a description plus budget and preference criteria, and merchant-built ChatGPT apps that route users out. Walmart launched an in-app service supporting account linking, loyalty and its own payments; Shopify began connecting storefronts with purchases completed in an in-app browser; Target, Sephora and Nordstrom backed the new experience.

The feed infrastructure found a second life in ad targeting two months later.

AdsAds go live in ChatGPT for US users on the Free and Go tiers

Three weeks after announcing the plan, OpenAI switched ads on in the US, in the post "Testing ads in ChatGPT", covered the same day by TechCrunch and others.

The rules: ads appear below responses, labeled sponsored, for logged-in adults on Free and Go. Plus, Pro, Business, Enterprise and Education stay ad-free. No ads run against health, mental-health or politics topics, and under-18 accounts are excluded.

That last rule describes February. OpenAI loosened the regulated-advice block in April 2026, and health and finance ads are now possible in the US case by case.

Two design choices stand out. Free users can opt out of ads in exchange for fewer daily messages, pricing the ads in messages rather than money. And advertisers receive only aggregate views and clicks, not user data.

Ads do not influence the answers ChatGPT gives you, and we keep your conversations with ChatGPT private from advertisers.

OpenAI, "Testing ads in ChatGPT", 9th Feb 2026

Launch pricing was reported, not published: a 60-dollar CPM and a commitment around 200,000 dollars, figures trade coverage attributed to reporting rather than to OpenAI. Within six weeks the pilot was generating 100 million dollars annualized, per an OpenAI spokesperson cited through Reuters.

AdsOpenAI announces ads and takes ChatGPT Go worldwide at 8 dollars

The monetization turn arrived as a pair of posts. Fidji Simo, CEO of Applications, announced in "Our approach to advertising and expanding access to ChatGPT" that OpenAI would test ads in the US on Free and Go "in the coming weeks", with five published principles.

Alongside it, ChatGPT Go went worldwide at 8 dollars per month in the US, per the companion post. Go had launched in India in August 2025, expanded through Asia that autumn, and is the tier, with Free, that ads run on.

TechCrunch's framing captured the scale: ads were opening onto an audience OpenAI counted in the hundreds of millions. PPC Land's marketer briefing is the practical summary of what the announcement did and did not promise.

Ads went live on 9th February.

ProductInstant Checkout launches: buying inside ChatGPT, starting with Etsy

OpenAI's "Buy it in ChatGPT" opened in-chat purchases for US users on Pro, Plus and Free, starting with US Etsy sellers, paying by Apple Pay, Google Pay, Stripe or card. Shopify merchants, "more than 1 million" with Glossier, Skims, Spanx and Vuori named, were announced as coming soon.

Two commitments framed the launch. Product results stay "organic and unsponsored, ranked purely on relevance to the user", and OpenAI charges merchants "a small fee" on completed purchases, so the buyer pays nothing extra.

The infrastructure was the bigger story: the Agentic Commerce Protocol, co-developed with Stripe and open sourced, plus merchant product feeds to keep checkout eligibility and pricing accurate. The spec set still lives at developers.openai.com/commerce.

The wave that followed brought Walmart, PayPal's wallet adoption and Instacart's in-chat grocery app. How the checkout half ended is the March 2026 pivot above; the protocol and feeds outlived it.

What is ChatGPT search?

OpenAI's web search inside ChatGPT: free for everyone, no account needed on the web, and answering with cited links.

1B+Web searches run in ChatGPT per week, per OpenAI's April 2025 disclosure

ChatGPT search is OpenAI's web search built into ChatGPT: ask a question with a current-events or lookup intent and ChatGPT searches the web, answers in prose and cites sources in-line and in a sidebar. It grew out of SearchGPT, the waitlisted prototype OpenAI announced in July 2024 promising "clear, in-line, named attribution" for publishers.

The rollout was a staircase of falling gates. Launch on 31st October 2024 for Plus and Team subscribers, running on a fine-tuned GPT-4o. All free users by mid-December, with ChatGPT auto-routing likely search queries and offering itself as a browser's default engine. By early February 2025, no account needed at all on the web.

Scale followed: OpenAI disclosed more than 1 billion web searches per week in April 2025, when ChatGPT counted around 500 million weekly users. It has disclosed no search-volume figure since, even as weekly users crossed 1 billion.

Which model answers searches? OpenAI named the search model exactly once: a fine-tuned GPT-4o at launch. The chat default has moved repeatedly since, most recently to GPT-5.6 Luna for free users, but OpenAI has never tied a newer model to the search pipeline, so neither do we.

One design decision from the SearchGPT announcement still shapes everything for site owners: search crawling is separate from model training, with a dedicated crawler and its own opt-out. The details live in the SEO section below.

ChatGPT ads: market-by-market tracker

Where ChatGPT shows ads, on which tiers, with which rules, updated as OpenAI expands the pilot.

Ads were announced in January 2026, went live in February, and reached nine markets within six months, passing 100 million dollars in annualized revenue in the first six weeks per an OpenAI spokesperson cited through Reuters. The pilot runs on the Free and Go tiers only.

MarketStatusSinceNotes
United StatesLiveThe launch market; self-serve Ads Manager for all US businesses since , no minimum spend
CanadaLiveConfirmed alongside the $100M annualized revenue disclosure
AustraliaLive
New ZealandLive
United KingdomLiveSelf-serve Ads Manager for UK advertisers since
JapanLiveFirst non-English market, with South Korea
South KoreaLive
BrazilLiveFirst Latin American market; confirmed launched in OpenAI's own update to its launch post, three months after being named on
MexicoLiveAnnounced and launched alongside Brazil

The tier rules have not moved since launch: ads show below responses, labeled sponsored, to logged-in adults on Free and Go. Plus, Pro, Business, Enterprise and Education are ad-free, under-18 accounts are excluded, and free users can opt out of ads in exchange for fewer daily messages. Advertisers receive aggregate views and clicks only.

The category rules have moved. Two layers decide whether an ad runs: placement, meaning which conversations can carry an ad, and content, meaning who may advertise. Since April 2026 the placement layer no longer categorically blocks medical, legal and financial advice conversations, and since the July revision approved US advertisers can run health and financial ads case by case in named categories, with proof of licensure sometimes required. Political ads remain prohibited, legal services still cannot advertise at all, and sensitive user contexts such as suicide and self-harm stay off limits. Health and financial ads are generally prohibited outside the US. The full breakdown is in our coverage of the policy change.

Buying routes: the Ads Manager beta at ads.openai.com (US since , UK since ), CPC bidding at a recommended 3 to 5 dollars per click alongside the default 60-dollar CPM, conversion-optimized campaigns since , and partner platforms Criteo, Kargo, Adobe, Pacvue and StackAdapt.

ChatGPT shopping and commerce: from Instant Checkout to discovery

OpenAI built in-chat buying, measured it, and pivoted to product discovery. The feeds and the protocol survived.

3xLower conversion for in-chat purchases versus routing buyers out, the Walmart disclosure behind the 2026 pivot

ChatGPT's commerce story is a complete product arc: build the ambitious version, measure it honestly, keep what worked.

It started with organic shopping in April 2025: product recommendations with images, reviews and merchant links on shopping queries, explicitly ad-free and fee-free at the time, selected from structured metadata rather than paid placement. Memory-personalized shopping was promised for paid tiers but excluded in the EU, UK, Switzerland, Norway, Iceland and Liechtenstein, an exclusion no source we have read shows lifted.

Instant Checkout followed in September 2025 with the open-sourced Agentic Commerce Protocol, then a partner wave: Walmart in October, PayPal adopting the protocol, Instacart's in-chat grocery app in December, and a dedicated shopping-research mode for all users in November.

The measurement came in hard: three-times-lower in-chat conversion at Walmart, about 30 Shopify merchants live against a million promised, and OpenAI pivoted in March 2026 to discovery plus merchant apps that route buyers to merchants' own checkouts.

What merchants should track now: product feeds live inside the Ads Manager, the ACP spec remains published at developers.openai.com/commerce, and the surrounding traffic is real. Shopify reported AI-sourced traffic up sevenfold and AI-attributed orders up elevenfold across 2025, and Adobe measured AI traffic to US retail sites up 805% on Black Friday, with AI-referred visitors 38% likelier to buy. Each figure is its reporter's own measurement.

Getting cited by ChatGPT: crawlers, referrals and what the data says

Which bots to allow or block, and what measured referral patterns say about earning ChatGPT citations.

OpenAI separates search from training at the crawler level, a design in place since the SearchGPT announcement. That makes robots decisions unusually clean, and the four agents worth knowing are documented on OpenAI's own bot page:

CrawlerWhat it doesWhat blocking it means
OAI-SearchBotCrawls for ChatGPT search surfacingOpted-out sites "will not be shown in ChatGPT search answers, though can still appear as navigational links"; robots.txt changes take about 24 hours; IPs published at openai.com/searchbot.json
GPTBotGathers training data for foundation modelsBlocks training use only; explicitly independent of search visibility
ChatGPT-UserFetches pages when a user asks about themNot an automatic crawler; OpenAI says robots.txt "may not apply" to it, and it is "not used to determine whether content may appear in Search"
OAI-AdsBotVerifies ad landing pages, brand safety and ad relevanceVisits only submitted ad pages; not used for training

OpenAI's bot documentation carries no revision date, so the rows above are dated to our fetch of it on 13th August 2026.

What the measurement says about earning citations, from the studies on this page: ChatGPT cites the web in a small but fast-growing share of answers, 6.8% in May 2026 against 1.3% a year earlier, and citation likelihood is wildly uneven by industry, from 22.6% in travel to under 5% in education.

Two structural findings matter for content strategy. 65% of cited URLs sit two or three folders deep, so specific, structured deep pages are what get cited. And since the May 2026 link change, around 60% of referral clicks land on homepages, which makes brand recognition inside answers worth more than it was.

Volume expectations should stay sober. Ahrefs measured users clicking links inside AI answers about 1% of the time, while also finding AI search visitors converted to signups at many times the rate of other traffic on its own site. Previsible measured 28.8% of ChatGPT referrals landing on internal search result pages. Low clicks, high intent is the working model.

Our guidance matches what we wrote for Google's AI surfaces: allow the search crawler unless you have decided otherwise, build citable deep pages, and treat any promise of a separate "ChatGPT optimization" discipline with suspicion, because the biggest referral change of 2026 was one OpenAI never announced.

Frequently asked questions

What is ChatGPT search and is it free?

ChatGPT search is OpenAI's built-in web search: ChatGPT detects search-intent queries, searches the web and answers with cited links. It launched for paid subscribers on 31st October 2024, reached all free users that December, and has needed no account at all on chatgpt.com since February 2025. Mobile apps still require login.

How many people use ChatGPT?

More than 1 billion people a week as of 31st July 2026, per OpenAI, up from 200 million weekly in August 2024 and 900 million in February 2026, when OpenAI also disclosed 50 million paying subscribers. Weekly actives are OpenAI's standard measure; be careful comparing them with the monthly figures other companies report.

Does ChatGPT show ads?

Yes, since 9th February 2026, for logged-in adults on the Free and Go tiers, in nine markets as of August 2026: the US, Canada, Australia, New Zealand, the UK, Japan, South Korea, Brazil and Mexico. Ads appear below responses labeled sponsored, and every paid tier from Plus up is ad-free. Free users can opt out in exchange for fewer daily messages.

Political ads are prohibited and legal services cannot advertise, but the blanket block on health and finance is gone: since April 2026 medical, legal and financial advice conversations can carry ads, and approved US advertisers can run health and financial ads case by case. Both categories are generally prohibited outside the US.

How do I get my site cited in ChatGPT answers?

Make sure OAI-SearchBot can crawl you, then build the kind of pages the data says get cited: 65% of cited URLs sit two or three folders deep, and citation rates are highest in travel and retail queries. There is no submission process and no proven optimization trick; ChatGPT cited the web in 6.8% of answers in May 2026, so citations are real but scarce.

How do I block ChatGPT from using my site?

Block the specific bot for the specific use: OAI-SearchBot in robots.txt removes you from search answers (changes take about a day), GPTBot blocks model training, and OAI-AdsBot only ever visits submitted ad landing pages. ChatGPT-User, which fetches a page when a user asks about it, is the caveat: OpenAI says robots.txt may not apply to it.

Can you still buy things inside ChatGPT?

Mostly no. Instant Checkout, launched September 2025 with Etsy, was deprioritized in March 2026 after Walmart found in-chat conversion three times lower than routing buyers to its own site. ChatGPT now focuses on product discovery, with merchant-built apps completing purchases on the merchant's side. The Instacart app remains the fully in-chat exception.

What AI model powers ChatGPT?

For chat, GPT-5 became the default for everyone on 7th August 2025, and GPT-5.6 Luna took over as the Free and Go default on 6th August 2026. For search specifically, OpenAI has only ever named the launch model, a fine-tuned GPT-4o, and has not said publicly what powers search answers today.

Is ChatGPT replacing Google?

Not on the numbers available. Google held 91.32% of worldwide search page views in July 2026 per Statcounter, and its AI surfaces report billions of monthly users. ChatGPT's 1 billion weekly users are a different measure of a different product, and within generative AI itself Similarweb has ChatGPT's share of site visits falling toward 50% as Gemini and others grow. See the comparison on our AI Mode page.

Written and maintained by Akash Mansukhani, Keywords Everywhere. See how we source and correct this page.
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Cite this page: Keywords Everywhere, "ChatGPT Updates: Search, Ads and Commerce Tracker", last updated 15th Aug 2026, https://keywordseverywhere.com/news/chatgpt-updates/