OpenAI Begins Testing Ads in ChatGPT as AI Search Reshapes Marketing

OpenAI Brings Advertising to ChatGPT

OpenAI began testing advertisements inside ChatGPT at the start of 2026, introducing paid placements into a platform hundreds of millions of people now use for product research and everyday problem-solving. The move represents a fundamental shift in how brands reach customers as conversational AI replaces traditional keyword search.

The advertising pilot arrives as user behavior evolves. Instead of typing fragmented keywords into search boxes, people now pose complete questions to AI assistants and expect written answers. This behavioral change creates new challenges for advertisers, who must earn attention without undermining the trust users place in AI responses.

According to elk Marketing, which studies brand responses to AI search, businesses are already rethinking customer discovery strategies as conversations displace conventional search habits. The details were first reported by Ario Abbasi for elk via Stacker.

Why it matters

The shift to AI-powered search fundamentally changes brand visibility and customer acquisition. McKinsey reports that half of surveyed shoppers now deliberately seek AI-powered search, where a single written response replaces an entire page of links. Brands that AI systems cannot identify clearly risk disappearing from customer consideration entirely, making this transition as significant as the original rise of Google search.

How AI Ads Differ from Traditional Search

ChatGPT's advertising system operates differently from conventional paid search. While Google already considers factors beyond keywords—including inferred intent, landing page content, and audience data—ChatGPT can analyze the full context of ongoing conversations, including follow-up questions that reveal deeper user intent.

OpenAI's ad system evaluates both context and intent before selecting paid messages, according to the company. However, ads remain clearly labeled and separate from ChatGPT's organic responses, ensuring commercial content doesn't blend into answers.

David Dugan, OpenAI's head of global ads solutions, told reporters at Cannes Lions that the format "is not a keyword-based buy, so it's different from traditional search." This forces paid media teams to build campaigns around contextual signals and landing pages while OpenAI's system determines relevance for conversations advertisers never directly observe.

The Economics Behind the Decision

Running AI assistants for hundreds of millions of users requires enormous computing power. OpenAI has stated that continued access depends on substantial ongoing investment in underlying systems. With only a small fraction of ChatGPT users paying for subscriptions, monthly plans fund just part of the service.

This mirrors the pattern digital platforms have followed for decades, with advertising supporting free search engines and social networks. OpenAI is now following that path, running ads alongside subscriptions while maintaining separation between paid placements and organic answers.

Commerce Moves Into Conversations

Shopping behavior is increasingly happening within AI conversations. Viant CEO Tim Vanderhook explained to search engine experts that AI commerce "collapses the 'search → click → checkout' funnel into a single, intelligent conversation."

Shoppers can describe needs, refine choices through follow-up questions about price or features, and receive product recommendations with current pricing and specifications—all without leaving ChatGPT. Some eligible products now support checkout directly within the platform, meaning retailers may enter the process only after AI has already narrowed a crowded category to the most relevant brands.

What Marketers Should Do Now

Google Ads executive Dan Taylor has warned that "search behavior has become more conversational and complex," giving teams reason to examine how AI assistants describe their companies before more customer decisions flow through these platforms.

Forbes contributor TerDawn DeBoe argues that AI performance cannot be judged by last-click sales alone, since brand mentions and lead quality may reveal influence earlier in the journey. Marketers should approach ChatGPT as a distinct paid channel rather than another version of Google Search, starting with small, measured campaigns.

Beyond campaigns themselves, brands need reliable attribution connecting early ad interactions with later sales. McKinsey points to accurate customer data and regular tracking as essential for determining whether ChatGPT ads produce real conversions.

E-marketer analyst Jeremy Goldman warned Reuters that users could migrate to rival chatbots if advertisements feel "clumsy or opportunistic," leaving little margin for error. Several competing AI companies remain cautious about advertising, focusing instead on trust and accuracy.

This story was originally reported by Ario Abbasi for elk Marketing and distributed by Stacker.