thirds.ai
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Beautiful, on-brand images and PDFs on autopilot

Start from a designer-made template and set it up once. Then make pixel-perfect images and PDFs at scale, from our editor, from ChatGPT or Claude, or from your own automations.

Make my first design

Free to start. No card needed.

Your brand

or

A tall drop story for Faircloth Knitwear, with a huge cream headline, a round photo of a woman on a rust gradient cut by dark stripes, and a hanging swing tag that says New, 14 pieces.
Image · 1080 × 1920Ready to download

Works with

  • Claude
  • Cursor
  • ChatGPT
  • Gemini CLI
  • Grok
  • Codex
  • Hermes
  • VS Code
  • Zed
  • Warp
  • Node
  • Python
  • n8n
  • REST

Try it now

Make your first file right here

Type your name and details, add your brand, and your business card is ready to download.

Colours, fonts, and logo

Put your brand on every design

Download freeSave this card to my account
A business card for Pressmark Studio with Isla Quinn's name in bold type and pink and blue overprinted halftone blocks on warm paper.
Studio business cardPDF

Four ways in

Pick how you want to make your files

Every way ends in the same place: a design in your brand that makes new files for you. Start where you feel at home.

  • A magazine-style invoice with a dark side panel, a halftone block with the pay-by date, and the total due in large serif type.

    In the editor

    Open a designer-made template, add your logo and colours, and change anything you like. Mark the name, the price, or the date that changes, and every file after that keeps the look.

    See the editor
  • A festival day pass with the headliner in large white type on a night sky, a pink day starburst, and a yellow side stub with the gate and a QR code.

    From ChatGPT or Claude

    Connect ChatGPT or Claude once. Then ask in plain words for the files you need, and your assistant fills your design and hands them back.

    Set up your AI assistant
  • A KPI report for Tidewater Supply Co. with monthly revenue, a rising area chart, three headline numbers, and a table of sales by channel.

    From your own automations

    Your app, your agent, or a Zapier, Make, or n8n flow sends the data and gets the finished PDF or image back, with nobody at the screen.

    See the integrations
  • A cream A4 menu for Otterley's under a terracotta and cream striped awning, a small olive sign reading Est. 2019 that hangs from the awning, eight dishes with dotted leaders and prices, and an olive chef's note panel with the address and phone number.

    From the gallery

    Browse menus, invoices, posts, tickets, and reports made by designers. Pick one, and it comes out in your brand.

    Browse the gallery

The problem

Every new picture or PDF still gets built by hand

You need a post today and a quote for a new client, and each one means opening the design tool and building it again. With thirds.ai the design is already done, so you, your AI assistant, or your own automation makes the file in a minute. The film shows how in under a minute.

Read the transcript

You're drowning in design requests, and there's no time to do them all. So the spring flyer waits, and Tuesday's quote never goes out. Then your biggest client gets a report with the old logo, and you look unprofessional.

So you start from a designer-made template, in your own logo, colours, and fonts. Your first one's ready to send in under five minutes. After that, anyone on your team can make the next flyer from the same design.

Got a spreadsheet of leads? Every one gets a quote with their name on it. Your app can make the invoice the moment a job's done. And your AI agent makes ten ads to test, each with the right logo.

Create your first design, free, at thirds.ai!

Set it up once

Set the design up once, and every file after it matches

Save your logo, colours, and fonts, and every design takes them. The same design fits every size, and takes new data for each client, order, or ad, one at a time or a whole spreadsheet at once.

Brand kits

Save your logo, colours, and fonts, and every design takes them. Keep a kit for each client, and the same design comes out in their brand.

See brand kits

From your AI assistant

Ask ChatGPT, Claude, Gemini, or Grok, and get the files back

Connect thirds.ai to ChatGPT, Claude, Gemini, Grok, or any other AI you use. Setup takes a couple of minutes. Then ask it for the weekend's passes or for ten ads to test. It finds the names, dates, and prices, fills your saved design, and hands you the files. Your own agents do the same through the API.

Your AI assistant

Make the passes for Friday, Saturday, and Sunday.

thirds · create_pdf× 3

  1. A festival day pass with the headliner in large white type on a night sky, a pink day starburst, and a yellow side stub with the gate and a QR code.
  2. The Festival day pass design made for a second business, with its own details and brand.
  3. The Festival day pass design made for a third business, with its own details and brand.

Your three passes are ready to download.

Set up ChatGPTSet up ClaudeSet up GeminiSet up GrokAny other AIRead the quickstart

Connects to the tools you already use

  • Claude
  • Cursor
  • ChatGPT
  • Gemini CLI
  • Grok
  • Codex
  • VS Code
  • Zed
  • Warp
  • Node
  • Python
  • n8n
For developers
Make a PDF from a saved design
curl --fail-with-body --silent --show-error \
  https://thirds.ai/v1/pdf \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: invoice-2026-1042" \
  --data '{
    "template_id": "editorial-invoice",
    "data": {"client": "Marlow & Co", "total": 4860}
  }'

The founder

Who builds thirds.ai

I'm Max. I built thirds.ai because I wanted beautiful images I could make from anywhere, from an app, a script, or an AI agent, with the fonts, colours, and line wrapping staying put every time. When you write to support, I'm the one who answers.

Max, founder
Write to us

Pricing

Start free, then pick a plan when you need more files

2,500 files a month

Your plan

Starter

$290 about $24 a month

See the Starter plan
Pay yearly2 months freePay monthly

Try Starter for $1. Your first week comes with 500 credits, and you can use them for AI too.

  • Free

    Make up to 50 PDFs or images every month, or use your credits to build a design with AI.

    $0no card needed

    free all year

    $0no card needed

    free all year

    Make a sample image

    • 50 credits every month
    • Use free credits for AI too
    • 1 brand kit
    • Make up to 10 files at once from a CSV
    • Files saved for 30 days

  • Starter

    You make images and client documents most weeks and want a steady monthly allowance.

    $290per year

    about $24 a month

    Save $58 a year

    $29per month

    or $290 a year

    Save $58 a year

    Try it for $1

    You pay $1 today for 7 days. After that it's $290 a year unless you cancel.

    • 2,500 credits every month
    • That's about 80 PDFs or images a day
    • 1 brand kit
    • Make up to 50 files at once from a CSV
    • Files saved for up to 1 year
    • Packs, or up to 2,500 extra credits on your bill
    • About $11.60 for every 1,000 files
    • Unused credits last 3 months
  • Most popular

    Growth

    You make campaign images and client documents every day and want room to grow.

    $790per year

    about $66 a month

    Save $158 a year

    $79per month

    or $790 a year

    Save $158 a year

    Get Growth

    • 10,000 credits every month
    • That's about 330 PDFs or images a day
    • 5 brand kits
    • Make up to 100 files at once from a CSV
    • Files saved for up to 1 year
    • Packs, or up to 10,000 extra credits on your bill
    • About $7.90 for every 1,000 files
    • Your files go ahead of Starter and Free
    • Unused credits last 3 months
  • Priority rendering

    Scale

    You make thousands of images and PDFs a month and want your work first in line.

    $1,990per year

    about $166 a month

    Save $398 a year

    $199per month

    or $1,990 a year

    Save $398 a year

    Get Scale

    • 40,000 credits every month
    • That's about 1,300 PDFs or images a day
    • 20 brand kits
    • Make up to 200 files at once from a CSV
    • Files saved for up to 1 year
    • Packs, or up to 40,000 extra credits on your bill
    • About $4.98 for every 1,000 files
    • Your files go first in line
    • Unused credits last 3 months

The $1 week is for Starter only, once per account, and you add a card to start it. Your 500 trial credits end with the trial, and you can't add extra credits to your bill during it.

When we're busy, we make Scale files first, then Growth, Starter, credit packs, and Free.

The number of files a day on each card assumes one credit for each file. AI work uses more credits.

Rather not pay monthly? Buy a credit pack from $10 for 500 credits and use thirds.ai with no plan. The credits last 12 months.

See all plans

Questions people ask before they start

Make my first design
Is thirds.ai free?

Yes, to start. The Free plan gives you 50 credits every month, and you can spend them on the AI chat too. Pick a paid plan when you need more.

Can I pay as I go without a plan?

Yes. Buy a credit pack and use thirds.ai with no monthly plan. A $10 pack gives you 500 credits, enough for 500 PDFs or images, and the credits last 12 months.

Is thirds.ai an AI image generator?

No. An image generator draws a new picture each time, so the layout, the fonts, and where the text sits change on every try, and you get a single image you can't edit. thirds.ai fills a design with layers, like a design file, so every file matches your brand and you can change any part. The editor can also make a picture to place inside a design.

Can ChatGPT or Claude make files from my design?

Yes. Connect ChatGPT, Claude, Cursor, or another AI tool through the MCP server, and ask it for files. From your own code, call the REST API in any language.

How much does a file cost?

Each PDF or image costs 1 credit. If a file fails on our side, you don't pay for it.

On-brand images and PDFs

Make your first on-brand file today

Your first file is a few minutes away, and every file after it matches your brand.

Make my first design

Free to start. No card needed.