The B2B Stack

The B2B Stack

This Week in B2B Signals: OpenAI Ads + GA4 Gets Worse For B2B Again + LinkedIn's New Predicative Tools + more!

Mike Harty's avatar
Mike Harty
Feb 20, 2026
∙ Paid

Lets dive into what has been happening in B2B paid media this week, and where else to start but the launch of OpenAi advertising within ChatGPT

Let’s get into it.

OpenAI Ads: From Speculation to Structure

OpenAI formally rolled out its ad platform inside ChatGPT this week. I was discussing this on LinkedIn this week, and how it really launched with somthing of a whisper. However that colossal cost base isn’t going to get covered with twenty bucks a month subscriptions. Anthropic, and Claude, is rapidly pulling into the lead here and their stance is overtly anti-ads, as they broadcast to the world during the SuperBowl

As I posted on LinkedIn;

OpenAI quietly switched on ads in ChatGPT this week. Following their own guardrails they will not be in the middle of conversations. Not shaping responses. Appearing after chats, with safeguards around sensitive topics like health.

That alone signals something big: LLMs are no longer just tools. They’re media surfaces.

And the industry is splitting i…

User's avatar

Continue reading this post for free, courtesy of Mike Harty.

Or purchase a paid subscription.
© 2026 Mike Harty · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture