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OpenAI partners with Smartly for conversational ads in ChatGPT
OpenAI has partnered with Smartly to launch conversational advertising units within ChatGPT. Criteo has separately reported that users referred by LLMs convert at 1.5× the rate of other channels.

What changed
OpenAI has over 800 million weekly active users, with only 5% on paid subscriptions: making the remaining 95% the addressable advertising inventory. The conversational ad format captures intent at a different level than traditional search: a single user prompt encapsulates intent, urgency, and constraints.
Why it matters for advertisers
For you, this means the ChatGPT advertising channel is generating real commercial momentum despite earlier concerns about low CTR: the intent-density of conversational queries may offset lower volume for performance-focused advertisers.
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Original newsletter text and archive evidence
OpenAI partners with Smartly for conversational ads in ChatGPT
OpenAI has partnered with Smartly to launch conversational advertising units within ChatGPT. Criteo has separately reported that users referred by LLMs convert at 1.5× the rate of other channels. OpenAI has over 800 million weekly active users, with only 5% on paid subscriptions: making the remaining 95% the addressable advertising inventory. The conversational ad format captures intent at a different level than traditional search: a single user prompt encapsulates intent, urgency, and constraints.
For you, this means the ChatGPT advertising channel is generating real commercial momentum despite earlier concerns about low CTR: the intent-density of conversational queries may offset lower volume for performance-focused advertisers.
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