Kieran’s Substack - The AI Marketing Generalist

Kieran’s Substack - The AI Marketing Generalist

Kimi K2 v. Notion’s Marketing Team: Who Makes the Better Ad?

A step-by-step walkthrough of how I built a tiny AI creative team with Kimi K2 to redesign a Notion billboard

Kieran Flanagan's avatar
Kieran Flanagan
Nov 14, 2025
∙ Paid

Notion’s marketing team is world-class.

Their latest brand ad caught my eye. It’s to promote their new product - Notion 3.0 with Agents. I felt it missed the mark. Not clear enough, not value-oriented.

Today, we’re going to use Kimi K2 to create a superior billboard ad. Kimi K2 is an open-source, powerful LLM that outperforms GPT-5 across most benchmarks.

…

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