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ChatGPT ads hit $1B run rate, but advertisers want proof before scaling up

OpenAI’s ad business reached a $1 billion annualized run rate, based solely on actual spend, not credits, but that trails its own $2.5 billion 2026 projection.

Why it matters. Advertisers say dollars stay in test budgets until OpenAI supports third-party incrementality and MMM tools, since Lifesight needs roughly six months of data to model cross-channel lift.

Signal from adexchanger.com · Joanna Gerber · read the original.

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