#e4mXplains:  As AI redraws the search market, Reddit wants a share of the advertising pie

The internet has developed an interesting new business model. Human beings ask questions, artificial intelligence provides the answers, and everyone argues over who should get paid.

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Reddit, which has supplied quite a few of those answers over the years, would now like a larger piece of the action.

On November 3, the discussion platform announced that it was testing advertisements within its search results, allowing selected advertisers to reach consumers based partly on their queries. A search for an espresso machine could produce coffee equipment advertisements; researching a home office might invite offers for monitors or furniture.

Hardly revolutionary. Google practically built an empire on the proposition.

But Reddit's move comes as the market itself undergoes a more consequential transformation. Search is increasingly happening across AI assistants, social communities and conversational interfaces, creating new competitors for the attention and advertising budgets once concentrated in conventional search.

And Reddit occupies an unusually awkward position in this emerging economy: it is simultaneously a competitor, content supplier, commercial partner and litigant.

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Everyone wants the answers

Research published on November 9 by Graphite, drawing on Similarweb data, estimates that ChatGPT, Gemini, Claude, Grok, Perplexity and DeepSeek collectively generated 76 billion sessions worldwide in September 2026, up 37% year-on-year.

ChatGPT accounted for approximately 81% of sessions across these six AI services. Claude recorded the fastest percentage growth, expanding 1,901% year-on-year from a much smaller base, while Gemini grew 182%.

These figures measure activity across AI services, not conventional search queries, but illustrate how rapidly the discovery landscape is expanding.

More significantly for businesses, the same research found AI-generated referral traffic growing 92% year-on-year, although it remains considerably smaller than traditional search traffic.

ChatGPT accounted for approximately 60% of those AI referrals in the study, followed by Gemini at 14% and Claude at 10%.

The old advertising assumption that consumer intent can primarily be captured through a search-results page is consequently becoming less comfortable.

Reddit's complicated AI relationships

Reddit has been supplying content to this ecosystem almost since its inception.

In 2024, it struck a data-access agreement with Google, reportedly worth approximately $60 million annually. It subsequently partnered with OpenAI, allowing ChatGPT to access Reddit's real-time content through its Data API. OpenAI also became a Reddit advertising partner.

The arrangement is commercially sensible. Reddit monetises its enormous archive of human conversations, while AI companies obtain the opinions, recommendations and experiences their systems need to generate useful answers.

The complication arises when those answers satisfy the user without requiring a visit to Reddit.

In October, Reddit reported that search referrals were declining by more than one million per week on average. Its US daily audience fell 2% year-on-year to 50.7 million, with management identifying Google's AI-powered search products among the likely causes.

Yet the company remains a formidable advertising business.

Third-quarter revenue increased 53% to $895 million, including $847 million in advertising revenue, up 54%. Global daily active users reached 130.3 million, while weekly users climbed to 515.2 million.

There is money in the conversations. Reddit's problem is ensuring that enough people continue having them on Reddit.

Its relationship with other AI companies is even less cordial.

Reddit sued Anthropic in June 2025 over alleged unauthorised use of its content to train Claude, and subsequently pursued legal action against Perplexity over alleged improper data scraping. Anthropic has disputed Reddit's allegations, while Perplexity has defended access to public information.

In September 2026, a California judge largely rejected Anthropic's attempt to dismiss Reddit's lawsuit.

The message is reasonably clear: Reddit is willing to supply the AI economy, but would prefer that customers use the front door and pay for the privilege.

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The advertising money follows

Meanwhile, OpenAI has already moved beyond experimenting with advertising.

By August 31, ChatGPT Ads had reached a $1 billion annualised revenue run rate in less than 200 days, according to the company. Its platform had attracted tens of thousands of advertisers, with self-service buying expanding to India, Europe, the Middle East and North Africa.

The attraction is straightforward. Consumers discussing purchases, travel plans or software options with ChatGPT are revealing commercial intent in considerably more detail than a typical keyword query.

OpenAI offers contextual advertising alongside responses, while maintaining that sponsored placements do not influence its answers.

Others are taking a different approach.

Anthropic has pledged to keep Claude advertising-free, arguing that sponsored content could compromise users' confidence in its responses. Perplexity, after experimenting with advertising, abandoned the format earlier this year over similar concerns.

That divergence is important. AI platforms are competing for consumer attention, but not all are pursuing the same advertising model.

Nor is monetisation straightforward.

A November 2026 study by researchers at Frankfurt School and WU Vienna found that US visits from ChatGPT advertisements generated an average of $0.89 in revenue, compared with $2.45 from Google Search ads. Conversion rates were 0.37% and 1.17%, respectively.

The observational study suggests that conversational advertising has yet to demonstrate the commercial efficiency of established paid search. Differences in user intent, pricing and attribution complicate direct comparisons.

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The India question

For Indian advertisers, these developments concern a substantial existing market.

The dentsu-e4m Digital Advertising Report 2026 valued India's 2025 paid-search advertising expenditure at ₹16,581 crore, representing 23% of digital spends. Social media accounted for 29%, worth ₹21,057 crore, while online video represented 28%, or ₹20,004 crore.

The emerging competition is therefore not merely between search engines, but between platforms seeking to monetise different stages of consumer discovery and consideration.

Reddit has an opportunity in categories where peer recommendations matter, including electronics, automobiles, beauty and travel. Its own search product attracted more than 80 million weekly users by late 2025, while its AI-powered Reddit Answers feature had reached 15 million weekly users.

However, Reddit has not disclosed whether Indian advertisers are included in its new search-advertising test, nor has it published pricing or performance benchmarks.

There is also the question of whether users seeking independent opinions will welcome advertisements appearing alongside them.

For marketers, the emerging challenge is not simply choosing another advertising platform. It is determining which environments generate genuine purchase intent, which influence decisions, and which can demonstrate measurable returns.

Who owns the question?

Reddit's experiment reflects a broader struggle over the economics of online information.

AI companies want access to human knowledge. Platforms producing and hosting that knowledge want compensation, traffic and advertising revenue. Advertisers want to reach consumers wherever decisions are being made.

And consumers, inconveniently for everyone involved, mostly just want an answer.

Reddit is betting that the conversations themselves will remain valuable enough to attract both users and advertisers, even when AI can summarise them elsewhere.

The larger question is no longer who controls search. It is who owns the commercial value of asking, answering and acting on a question.

There may be plenty of answers. The advertising industry is still figuring out which ones are worth paying for.