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AI Email Designer

Agency-grade email,
designed by AI in minutes.

Describe your brand and what you want to say. Letters designs beautiful, on-brand campaigns and automated flows — then you tweak and send. No agency, no retainer, no $60 an email.

Free to start From $19/mo, unlimited Yours to export & own
A new model for email design

Agencies are expensive. Templates look generic.
There’s finally a third option.

The agency

Beautiful — but slow & pricey

Real designers, sure. But $3,000+/month retainers, 2–3 week turnarounds, and a standing weekly call.

~$3,000 / month · locked in
Template builders

Cheap — but it shows

Drag-and-drop blocks and stock layouts that look like everyone else’s, plus hours of fiddling to make them yours.

$ low · but hours of your time
Letters

On-brand, instant, DIY

Describe it once. AI designs original, on-brand email in seconds — you refine and send. Keep the files, no lock-in.

From $19 / month · unlimited
01 — The AI designer

Brief it like a designer.
Get back a finished email.

Tell Letters your brand, your goal, and your tone. It returns several complete, on-brand directions — copy, layout, and color included. Pick one, nudge anything, ship.

AI Designer / Welcome email
Direction 2 of 4
ACME · WELCOME

Glad you’re here, Jordan.

Your account is ready. Here’s where to start — set up your first project in two minutes and we’ll take it from there.

Open your workspace
Acme, Inc · 2261 Market St · Unsubscribe
01

Brief

Brand, goal, tone, and what to say — or just paste a rough note. Letters reads your brand kit automatically.

02

Generate

Get four finished directions in seconds, each original and on-brand. No starting from a blank canvas.

03

Refine & send

Nudge copy, swap a block, lock it as a template — then export the HTML or send it from Letters.

02 — Automated flows

Whole flows, designed end to end.

Welcome, abandoned cart, post-purchase, win-back — Letters designs every email in the sequence and the logic between them. Set it up once; it runs while you sleep.

Subscribes
TRIGGER
Welcome #1
SENT INSTANTLY
Wait 2 days
DELAY
if opened
The offer
10% OFF
if not
Reminder #2
RE-ENGAGE
Purchase
GOAL
03 — And we’ll send them, too

Design and deliver,
in one place.

Most tools make you design somewhere and send somewhere else. Letters can do both — campaigns, automated flows, even transactional email by API — with dedicated IPs and SPF / DKIM / DMARC handled for you.

CampaignsTransactional APIDedicated IPSPF · DKIM · DMARC

Prefer your own sender — Klaviyo, Resend, Mailchimp? Export the HTML and keep your stack. Letters never locks you in.

EventLIVELatency
The choice is yours

How Letters stacks up.

Design agency
Template builder
Letters
Price
$3,000+/mo
Low, but slow
From $19/mo
Turnaround
2–3 weeks
Hours of DIY
Seconds
On-brand & original
Yes
Generic
Yes
Your time
Weekly calls
1–2 hrs each
Minutes
Sending included
Built in
04 — Pricing

Cheaper than one agency email.

Agencies: ~$3,000/mo · Per-email studios: ~$60 each · Letters: from $19/mo, unlimited.
Free
$0 / mo
Kick the tyres and design a few.
  • 5 AI emails / month
  • Brand kit + export HTML
  • Bring your own sender
Start free
Pro POPULAR
$19 / mo
Unlimited design for one brand.
  • Unlimited AI emails
  • Automated flows
  • All templates + revisions
  • Export anywhere
Start 14-day trial
Studio
$49 / mo
Design and send, all in one.
  • Everything in Pro
  • Sending — 50k emails/mo
  • Dedicated IP + domains
  • 3 brands + team seats
Choose Studio
Free to start

Your next email designs itself.

Brief it, generate four directions, and send — all before your coffee’s cold.