OpenAI researcher quits over ChatGPT ads as Perplexity abandons AI advertising entirely

Reviewed byNidhi Govil

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A former OpenAI researcher resigned this week citing concerns that ChatGPT ads could manipulate users, drawing parallels to Facebook's privacy erosion. Meanwhile, Perplexity walked away from advertising entirely, stating that ads fundamentally conflict with user trust in AI. The moves highlight a growing industry divide over how AI companies should monetize their services.

OpenAI Researcher Resigns Over ChatGPT Advertising Strategy Risks

Zoë Hitzig, a former OpenAI researcher and economist who spent two years helping shape how the company's AI models were built and priced, resigned on Monday—the same day OpenAI began testing advertisements inside ChatGPT

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. In a guest essay published in The New York Times, Hitzig warned that OpenAI's approach to AI advertising risks repeating Facebook's trajectory of eroding user privacy protections over time. She described the personal data users have shared with the chatbot as "an archive of human candor that has no precedent," including medical fears, relationship problems, and religious beliefs shared because people believed they were talking to something with no ulterior agenda

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Source: Ars Technica

Source: Ars Technica

OpenAI announced in January that it would test ads in the US for users on its free and $8-per-month "Go" subscription tiers, while paid Plus, Pro, Business, Enterprise, and Education subscribers would not see ads

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. The company stated that ads would appear at the bottom of ChatGPT responses, be clearly labeled, and would not influence the chatbot's answers. However, Hitzig expressed skepticism about these safeguards lasting, arguing that the company is building an economic engine that creates strong incentives to override its own rules

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Perplexity Abandons Advertising in AI Chatbots to Preserve User Trust in AI

In a striking contrast to OpenAI, Perplexity has walked away from advertising entirely, ending an experiment that began in 2024 when labeled promotions occasionally appeared beneath chatbot responses

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. The San Francisco-based startup, valued at $18 billion, quietly phased out sponsored content late last year and confirmed to the Financial Times on Tuesday that it would not pursue advertising further

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Source: PYMNTS

Source: PYMNTS

Perplexity executives explained that maintaining user trust outweighs any near-term revenue gains from ads. "We are in the accuracy business, and the business is giving the truth, the right answers," one executive stated. Another executive warned that "the challenge with ads is that a user would just start doubting everything," emphasizing that users need to believe they're receiving the best possible answer to keep using the product and be willing to pay for it

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The AI Ad Wars Intensify Across Industry

The divide over advertising in AI chatbots is creating clear battle lines in the industry. Anthropic has committed to keeping Claude ad-free and recently aired attack ads during the Super Bowl clearly targeting ChatGPT, which Sam Altman called "dishonest". In a manifesto earlier this month, Anthropic stated that "including ads in conversations with Claude would be incompatible with what we want Claude to be: a genuinely helpful assistant for work and for deep thinking"

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. The company argued that even if ads don't directly influence AI responses, they would still introduce an incentive to optimize for engagement rather than being genuinely helpful

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Google has already integrated ads into its AI Overviews in Search and AI Mode features for months, though Gemini remains ad-free for now

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. However, executives have indicated that advertising could be a natural next step for the chatbot

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Alternative AI Monetization Strategies Emerge

Perplexity's revenue model relies heavily on a subscription-based model, with the company reporting more than 100 million users and annualized revenues around $200 million, largely from paid subscription tiers ranging from $20 to $200 per month

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. The company also offers a free version to attract new users. While one executive did not rule out a return to advertising in the future, another suggested they might "never ever need to do ads" if their focus on subscriptions and enterprise sales pans out

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. According to Business Insider, the company is looking to expand its enterprise sales team and target large businesses, finance professionals, doctors, and CEOs to generate a reliable revenue stream

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The cost of training and running large language models continues to climb, with no profit to show for it, making the question of how to monetize AI services increasingly urgent for the industry

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. OpenAI CEO Sam Altman has claimed that an ads business would make the free ChatGPT offering financially sustainable

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Privacy Issues and Data Privacy Concerns Resurface

Hitzig's resignation letter drew explicit parallels to Facebook, noting that the social media company once promised users control over their data and the ability to vote on policy changes

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. Those pledges eroded over time, and the Federal Trade Commission found that privacy changes Facebook marketed as giving users more control actually did the opposite

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. Her warning suggests that a similar trajectory could play out with ChatGPT, despite OpenAI's assurances that ads will not influence responses or provide advertisers with content from conversations

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Source: CXOToday

Source: CXOToday

The debate centers on whether AI companies can maintain unbiased answers while pursuing advertising revenue, and whether users will continue to trust AI assistants that display sponsored content. For AI services to function effectively as trusted advisors on sensitive topics, users must believe they're receiving objective information rather than responses subtly influenced by commercial interests.

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