OpenAI's ad business shows blistering growth, hits $1 billion annualized revenue run rate
$1B annualized run rate. OpenAI's ad business just became a material revenue stream—and Anthropic is watching.

Why it matters
OpenAI has monetized ChatGPT's massive user base through ads, crossing into a new revenue pillar that changes the economics of frontier labs and their competitive dynamics with rivals like Anthropic.
The key facts
4 to knowOpenAI ad business hit $1B annualized revenue run rate
Ad model launched earlier in 2026
Anthropic publicly criticized the move with a Super Bowl commercial
Signals shift in how frontier labs are diversifying revenue beyond API and subscription
Go to the source
CNBC Technologycnbc.com
Publisher excerpt: OpenAI's move to serve ads in ChatGPT earlier this year drew ridicule from its chief rival, Anthropic, in the form of a Super Bowl commercial.