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

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.

Kimi K2 has received rave reviews, particularly for its ability to perform creative tasks.

In this tutorial, we’ll use Kimi K2 to build a tiny AI creative team — an Audience Strategist, a Copywriter, an Art Director, a Brand Guardian, and a Image Prompt Engineer.

Step 1 — Build the Audience Profile (Who The Billboard is for)

Before we redesign Notion’s billboard, we need to know who the ad is actually for. Notion 3.0 introduced Notion Agents, automated workers that handle repetitive tasks, summarise docs, draft content, and run workflows for you.

So the first thing I had Kimi K2 do was act like an Audience Strategist and figure out the ICP: Who are the people who actually need Notion Agents, and what would stop them in their tracks on a billboard?

Here’s the exact compact prompt I used:

Prompt: Create Audience Profile

Act as an Audience Strategist.
Research who Notion 3.0 + Notion Agents are built for.
Pull signals from: Notion’s site, product pages, help docs, customer stories, YouTube reviews, Reddit threads, and SaaS comparison sites.
Identify the core users who actually need AI Agents.
Summarise in 5 bullets:
• Who they are (role + seniority)
• Their workflow pain
• What Agents automate for them
• What outcome they’re chasing
• What a billboard must communicate to hit instantly.

Here’s what it produced - using a Google doc to save space

Next, we’ll train Kimi to write world-class billboard headlines.

Step 2 — Teach Kimi to Write World-Class Billboard Headlines

Now that Kimi knows who we’re targeting, we need to teach it how to speak to them so we can communicate the value of Notion 3.0 in the Billboard ad.

Billboards live and die on one thing: A killer strapline you can read in two seconds.

So, we’ll create an onboarding document that distills the best lessons in the headline writing craft from Ogilvy, Sugarman, Halbert, Gary Bencivenga, and modern SaaS creatives.

Here’s the onboarding doc I gave Kimi K2 to create.

Prompt: Create Headline Writer Onboarding Doc

Create a short onboarding doc that teaches a new copywriter how to craft world-class billboard headlines.
Base it on the principles of Ogilvy, Sugarman, Halbert, Bencivenga, and modern B2B SaaS advertisers.
Keep it tight, practical, and actionable — no fluff.
It should cover:
• The core principles of great billboard headlines
• The psychological triggers behind attention
• The structure and patterns great copywriters use
• A few timeless formulas they can apply
Output the onboarding doc only — clear, concise, and ready for someone to learn from.

Here’s what it produced - using a Google doc to save space

Step 3 — Build the Art Director (Teach Kimi How to Turn Copy Into Visual Concepts)

Now we need the second member of our AI creative team: the Art Director.

This agent must understand how to turn a headline into a visual idea, the layout, focal point, composition, tension, and the overall billboard concept.

So we ask Kimi to write a mini onboarding doc that teaches someone the exact principles world-class art directors use to create outdoor ads that punch.

Here’s the prompt:

Prompt: Generate the Art Director Onboarding Doc

“Create a short onboarding doc for a junior Art Director on how to turn a headline into a world-class billboard concept.
Base it on the principles used by great visual creatives: Steve Jobs, Paula Scher, Dan Wieden, and modern digital brand designers.
Keep it tight and practical.
The doc should cover:
• How to build visual hierarchy for 2-second attention
• How to translate copy into imagery
• Layout fundamentals (focal point, contrast, spacing, composition)
• What makes outdoor creative instantly readable
• Timeless visual patterns that consistently work for billboards
Output the onboarding doc only — clear, concise, and immediately usable.”

Here’s what it produced - using Google doc to save space

Step 4 — Build the Brand Guardian (Teach Kimi Notion’s Style)

The billboard can’t look like it was made by “Generic AI Ad Generator.”

It needs to feel like Notion to compete with the Billboard ad their brand team did.

So we ask Kimi to create a brand style guide for Notion.

This prompt’s only job is to extract Notion’s actual brand cues, typography, tone, palette, composition, spacing, iconography, and compress them into a simple style guide we can feed into all later steps.

Prompt: Create the Notion Brand Style Guide

“Research Notion’s current brand style from public sources (site, product pages, help docs, ads, blog).
Summarise it into a clear style guide covering:
• Typography
• Colour palette
• Layout & spacing principles
• Iconography & illustration style
• Tone of voice
• What makes a visual instantly feel ‘Notion’
Keep it concise and practical — tailored for a billboard.”

Here’s what it produced - using Google doc to save space

Step 5 — Create the Creative Brief (So Kimi Knows the Product We’re Advertising)

Let’s create a simple creative brief, plugging in the audience profile from Step 1, and pair it with a concise brief describing what Notion 3.0 and Notion Agents actually do.

Here’s the brief we’ll use for all downstream creative work (created with Kimi):

Creative Brief: Notion 3.0 + Agents

Audience Profile:
{a. Who they are (role + seniority): Mid-to-senior knowledge workers—specifically Product Managers, Operations Leads, Marketing Managers, and Content Directors—who are system-builders and team enablers. They’re individual contributors with 5-10 years of experience who spend 30-40% of their time on coordination overhead and can’t delegate it due to扁平 org structures. Think the person who built your team’s Notion workspace and maintains it at 11pm.

b. Their workflow pain: They’re drowning in “architecture work”—manually creating databases, updating project trackers, synthesizing Slack threads into docs, and building the same campaign structures from scratch. Their core pain isn’t writing faster; it’s the 20+ minutes of tedious multi-app context switching to turn a meeting into actionable project plans, or compiling feedback from 5 sources into one report. As one Ramp Head of AI put it: “It used to take hours of busywork to spin up ready-to-use systems.”

c. What Agents automate for them: End-to-end busywork execution at scale—creating fully-formed databases with relations and views from a single prompt, updating hundreds of pages simultaneously, pulling context from Slack/Google Drive/GitHub to draft complete documents, and turning “compile all customer feedback from Q3” into a polished, ready-to-share database with analysis. Not suggestions. Finished work.

d. What outcome they’re chasing: They want to reclaim 10-15 hours/week to focus on strategic thinking instead of being a “human API” between their tools. The real goal is escaping the productivity paradox where better tools meant more setup work. They’re chasing the feeling of having a competent teammate who already knows their systems and finishes the jobs they dread starting.}

Product:
Notion 3.0 with AI Agents — a major evolution of the Notion workspace.
Agents can act, automate, and execute tasks inside your workspace.

Core Problem:
Knowledge workers waste huge amounts of time on repetitive actions: updating pages, creating docs, organising databases, pulling info together — “work about the work.”

Key Benefit:
Anything you can do in Notion, your Agent can do too — automatically, instantly, and without mistakes.
You work faster. You reclaim hours. You focus on meaning, not maintenance.

Tone / Emotion:

• Confident

• Clean and minimal

• Smart with a hint of play

• “Give me my time back”

Billboard Objective:
Deliver one unmistakable idea in under two seconds:
“Let your Agent handle the busywork.”

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Turn Everything Into our Billboard

Now that we’ve built the full AI creative team, we can finally create the billboard to test if Kimi K2 can outdo Notion’s marketing team.

Here’s the exact 3-step flow I used:

a. Craft the headline:

We give Kimi three things:

1. The Creative Brief (Step 5)

2. The Headline Writer (Step 2)

And ask it to write world-class billboard headlines.

Prompt: Craft Headline

Using the Creative Brief + the Headline Copywriter Onboarding Doc, craft 5 world-class billboard headlines.
Each must:
• communicate the core benefit in 2 seconds
• align with Notion’s tone
• solve the pain in the creative brief
• follow the headline rules in the onboarding doc
Output only the 5 headlines, with 1 recommended winner.

Here are the headlines it gave me:

Reclaim 15 hours. Agent handles busywork.

Stop being the human API.

From meeting to action plan. Automatically.

Your Agent finished that already.

10 hours back. No more busywork.

Winner: Reclaim 15 hours. Agent handles busywork.

b. Turn the headline into a visual concept

Now we plug the winning headline into the Art Director’s brain:

• The Art Director Onboarding Doc (Step 3)

• The Notion Brand Style Guide (Step 4)

Then Kimi generates the actual creative direction.

Prompt:

Using the winning headline (Reclaim 15 hours. Agent handles busywork.) + the Art Director Onboarding Doc + the Notion Brand Style Guide, create a concise visual concept for a billboard.
Include:
• the exact layout
• focal point + visual hierarchy
• suggested imagery or graphic elements
• colour + typography rules (Notion style)
• where the headline sits
Output a single, clear concept written as if briefing a designer.

This is the moment where the ad starts to feel real.

c. Turn the concept into a real billboard

Finally, we feed Kimi K2’s visual concept into Google Nano Banana. Kimi K2 doesn’t create images, but it can do the entire creative concept. We’ll use Google Nano Banana to create the Billboard ad.

Prompt: Create Google Nano Banana Prompt

Turn the following billboard visual concept into a clean prompt for Google Nano Banana.

“Added the billboard concept provide by Kimi K2, not including here to save space”

Make it:

• visual, concrete, and unambiguous

• aligned with the Notion style guide

• optimised for a full-bleed, high-resolution billboard

Output only the final prompt.

This gives you a prompt for Google Nano Banana

“14’x48’ horizontal billboard, full bleed, ultra high resolution. Extreme minimalist composition with vast negative space, warm off-white background (#F1F1EF). Roman Muradov-style line art: calm figure in side profile, seated with arms crossed, soft black ink lines with halftone shading, no skin tones, gazing right. Floating geometric Notion blocks cascade left-to-right, transitioning from chaotic scatter to perfect alignment via delicate thin lines. Clean sans-serif typography, Inter Bold style: “Reclaim 15 hours. Agent handles busywork.” in pure black (#000000) with “15” in desaturated burnt orange (#B45309). Tiny Notion wordmark bottom-right in Articulat CF style. Monochrome palette, single accent color, professional billboard quality, high contrast, readable at distance.”

And here is the billboard:

Pretty great right?

And the best thing, you can create many variations of this ad. I believe it would take a couple of iterations to create a better headline.

Kimi K2 is impressive. You should check it out.

Until Next Time,

Happy AI’fying

Kieran