Ambidextrous

Apps · A copywriter trained on one brand

MUSE

A custom-trained AI copywriter for each client brand, in its own app, written in that brand’s voice down to the punctuation.

See the tiers
MUSE on a laptop, planning a quarter of content in a demo written in Nike’s voice
Status
Live, and taking new brands. Solo $147 a month, Supported $497 a month.
Recognition
Finalist in the Makers and Shapers Awards 2026, in the AI and Innovation categories
Platform
A white-labelled web app on each brand’s own domain
For
Business owners whose voice matters too much for a generic tool
Trained on
Each brand’s Brand Messaging Architecture and twelve modules of copywriting craft
Comes with
Branch & Blossom, the Funnel Blueprint and Google Sheets sync
The demo
Recorded on a guest demo written in Nike’s public voice. Not a Nike project.

Why I built it

I kept hearing the same thing from my copywriting clients: “I wish I could afford to have you write everything for me.” They ran brilliant businesses, and marketing kept sliding to the bottom of the list.

So I built MUSE. Each one starts with a strategy session and a Brand Messaging Architecture, is trained on that voice and on how I write, and is handed over as the brand’s own copywriter, in its own app, with a human copywriter behind it.

The problem

Good brands, no time to write

Who it’s for

Built for owners who are their brand’s voice

What it does

Inside a MUSE

A quarter planned in one message

Themes for each month, the dates to build around and what to post each week, in the brand’s voice from the first line.

One theme, every channel

Give it a short brief, and it writes an Instagram caption, a newsletter and a LinkedIn post from the same theme, with notes on how each fits the voice.

Edits in plain words

Ask for shorter and punchier with three subject lines, and it rewrites the draft and says what it changed.

MUSE: Each brand’s own studio

Each brand’s own studio

Every MUSE has its own domain, logo, starter prompts and credits.

How it was made

Two hands

MUSE was built with agentic assistance, and every MUSE is an AI. What makes each one sound like its brand is the part that’s mine.

The agents’ hand

  • The white-labelled app every brand gets: its own domain, logo, prompts and credits.
  • Syncing with Google Drive and Google Sheets, so menus and prices stay current.
  • Turning my copywriting modules into instructions the model follows every time.

My hand

  • Writing each Brand Messaging Architecture, from a strategy session with the owner.
  • Deciding what good copy is, across twelve modules drawn from a decade of writing for clients.
  • Reading what each MUSE writes, and retraining it until the owner says it sounds like them.
  • Keeping a human in it: quality checks and support from a copywriter, not a help desk.

Where it’s heading

What’s next

MUSE is taking new brands again, with two tiers: Solo, and Supported for a team behind you. Two of the tools built for it, Branch & Blossom and the Funnel Blueprint, are in the apps portfolio.

See the tiers

Write to me

About an app, copy, training or a talk. I'd love to hear what you're working on.

Get in touch

or email hi@ambidextrouslabs.com