The news: OpenAI recently posted a listing for a “growth paid marketing platform engineer,” signaling plans to build in-house systems for ad integration, campaign management, and attribution.

The move points to OpenAI creating its own ad-buying infrastructure inside ChatGPT, rather than relying on agencies.

Why it matters: If OpenAI owns its advertising infrastructure, it gains more control over performance, measurement, and monetization. If executed well, ChatGPT could emerge as a new major advertising player, rivaling Google, Meta, and Amazon’s ad empires.

Will it work? Signs point to yes.

• ChatGPT is already reshaping organic referral traffic: It drove nearly 21% of Walmart’s incoming visits in August, along with 20% for Etsy, 15% for Target, and 10% for eBay.
• GenAI is now the second-most popular source of product recommendations, and Salesforce projects AI-powered tools will influence 21% of global holiday orders this year.
• Usage among younger users, a highly coveted demographic, is spiking.
• Perplexity losing its ad chief sets a key challenger back, widening the runway for ChatGPT to capture advertiser attention.

Yes, but: Ads risk introducing friction into ChatGPT. Tolerance may differ by tier—enterprise customers paying hundreds per month may expect an ad-free experience, while lower tiers could see more tolerance for monetized responses.

More than two in three US adults trust the information provided by genAI tools like ChatGPT. Poorly integrated ads could reverse that momentum, undermining ChatGPT’s credibility as a reliable assistant.

And though Google’s share of the US search ad market will fall below 50% next year, it’s still dominant. OpenAI has its work cut out for it.

Our take: OpenAI’s real opportunity isn’t just inserting ads into ChatGPT; it’s transforming the assistant into a commerce engine.

• Sponsored answers and affiliate links could push ChatGPT into a shopping interface where discovery and purchase happen in one place.
• The scale of the opportunity is growing quickly: AI-driven ad formats are projected to expand at more than 120% annually, faster than retail media or CTV in their early years.
• Advertisers that adopt chatbot ad formats before competitors stand to gain the most. As with Google search ads two decades ago, first adopters could capture disproportionate visibility before competition intensifies.