The AI industry is about to relearn every lesson of the ad blocking wars

Date:
Tue, 25 Aug 2026 14:32:50 +0000

Description:
The web fought a fifteen-year war over ads. AI platforms are walking into the same one.

FULL STORY ======================================================================Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Threads Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter Maybe money does not explain everything, but it explains a lot. Goldman Sachs estimates the AI build-out will require roughly $7.6 trillion in capital over the next five years across compute, data centers and power. Its unlikely that subscriptions alone will cover the bill, which is why ads are coming to AI.

OpenAI started rolling out ads in some ChatGPT tiers this year and forecasts $2.5 billion in ad revenue in 2026 and $100 billion by 2030. At an ad tech event this summer, OpenAI's chief revenue officer Denise Dresser dropped the hedging and said the company is "clearly in the advertising business now." Perplexity, on the other hand, shut down its ad business entirely over user trust. Similar products, same opportunity, opposite conclusions. Latest
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Leads communications for Adblock Plus and AdBlock at eyeo. This conflict is not new and the open web fought this battle 15 years ago, when ad blocking became mainstream.

Now, the AI industry is on track to repeat every mistake of the so-called ad blocking wars, unless it studies them instead. You may like What businesses can do as Cloudflare readies to categorize AI traffic The invisible traffic problem: why AI agents are your biggest blind spot Everyone is now an AI company. But heres the real challenge Lesson one: users revolt faster than
big platforms think When ad formats became more intrusive - because again, money! - the industry assumed users would just accept a bad experience. Instead, users fought back and installed software to get rid of aggressive online ads. In what technology commentator Doc Searls called the biggest boycott in world history, ad blocking went from being a niche tool to a mainstream product.

And we see the same dynamic playing out again. Within weeks of sponsored ads appearing in ChatGPT, purpose-built extensions popped up to specifically
block ads there. Existing ad blocking tools made sure to block those ads as well. It took hours and days, not weeks or months, for users to act. Are you
a pro? Subscribe to our newsletter Sign up to the TechRadar Pro newsletter to get all the top news, opinion, features and guidance your business needs to succeed! Contact me with news and offers from other Future brands Receive email from us on behalf of our trusted partners or sponsors By submitting
your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over. Lesson two: the arms race is unwinnable, both legal and technical The predictable response is, of course, to sue ad blockers . For some publishers, the idea that users take agency over their own screens was not acceptable, so they took ad blocker developers to court. Almost all of
the legal attempts failed. With one case still pending at the German courts, China is the only country in the world that bans ad blockers.

Another tactic is technology to fight ad blockers. Platforms tried different circumvention methods to deliver ads to users with ad blockers installed.
This prompted their developers to update their techniques to prevent websites from bypassing. Every technical escalation met a counter-escalation and the sum of a lot of engineering efforts on both sides is that, today, over a billion people still block ads.

AI platforms hold one card their predecessors didn't, though: integrating advertising directly into the generated answers, instead of showing labelled ads. Researchers from the University of Michigan tried exactly this and the results should worry everyone involved: users largely don't expect
advertising inside a generated answer and frequently fail to notice it. What to read next The companies cutting humans for AI are about to learn an expensive lesson The AI data problem nobody talks about: Why more information isn't making better decisions Regulation by litigation is often overlooked as a regulatory tool: Just how much responsibility should AI companies have on their users wellbeing?

At the same time, 63% of consumers say ads decrease their trust in AI
outputs, according to Ipsos. The format that works best technically is the
one users are least equipped to detect, and least willing to trust. Which brings us to the most important lesson. Lesson three: trust is the actual product Search results pages survived the ad blocking wars because users had ten blue links to compare with the sponsored content and two decades of learning whats paid and whats organic. AI assistants, on the other hand,
offer one authoritative answer, with no other content or adjacent organic results to check against.

As soon as users suspect that answers might be influenced by a sponsor, these doubts are attached to all answers and trust erodes.

Cory Doctorow coined the term enshittification, which the American Dialect Society crowned as its Word of the Year in 2023. Platforms start out by doing good to their users and then degrade their experience to make advertisers happy.

And compared to tracking-based advertising in the open web, AI assistants
know so much more about you that they can sell to advertisers: your health worries, your finances, your political view, your job struggles and
everything else these tools picked up from you, stitched into one persistent memory of who you are.

Its the most revealing personal record people have ever handed to software, combined with the drive from digital advertising to always collect more data and more data for targeting. The table is set for the next wave of enshittification. Lesson four: the ad blocking wars ended in a treaty, not a victory There was no final winner and not one technical solution that settled ad blocking in the open web. There was a rough settlement: standards for ad formats many users tolerate, transparency about what is paid for, meaningful user control.

Not everyone loves that settlement and we still see platforms trying to circumvent ad blockers and vice versa. But the open web still has a functioning ad economy and users still have, mostly, a functioning veto.

Getting there took more than a decade and the lessons are written down. Which road to take is now a genuine choice and it sits with the AI companies themselves. We've featured the best CDN providers . This article was produced as part of TechRadar Pro Perspectives , our channel to feature the best and brightest minds in the technology industry today.

The views expressed here are those of the author and are not necessarily those of TechRadarPro or Future plc. If you are interested in contributing find out more here: https://www.techradar.com/pro/perspectives-how-to-submit



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