OpenAI

Dominant leader in generative AI, powering the majority of AI-driven content and marketing automation tools globally

OpenAI is an artificial intelligence company best known for its AI products and services, currently preparing for a major initial public offering at a valuation of approximately $852 billion.¹ Its advertising business, roughly 200 days old, launched in February 2026 with ads appearing inside its ChatGPT chatbot, complementing existing revenue streams such as enterprise offerings, consumer subscriptions, and usage-based APIs.¹ ChatGPT Ads are paid placements displayed directly within ChatGPT's responses, appearing as clearly labeled sponsored units visually separated from the assistant's answer, with OpenAI asserting that the ad system runs on infrastructure independent of the language model so that ads do not influence response content.² Rather than traditional keyword matching, the platform uses contextual signals — topic and conversation descriptions provided by advertisers — with the system determining ad relevance based on conversation content and intent, landing page, ad copy, and, where enabled, user personalization signals.² OpenAI provides advertisers with standard performance metrics through Ads Manager, and launched a Conversions API and pixel-based tracking in May 2026, enabling full-funnel measurement of post-click behavior such as add-to-cart events and completed purchases, putting it on comparable footing with Google and Meta for advertisers willing to complete the integration.³ Source 1: cnbc.com — OpenAI's ad business hits $1 billion annualized revenue ... Source 2: mergado.com — OpenAI Ads Is Heading to Europe: Be Among the First to Try It Source 3: dashthis.com — What Is ChatGPT Ads? A Marketer's Guide (2026)