About us

We help you make PDFs and images that look designer-made

Most people who make content for a business have no designer and no time to fight with a design tool. With thirds.ai, you set up a template once, from our gallery or by asking ChatGPT or Claude. From then on, every invoice, report, or social post you make from it comes out in your brand, with nothing to fix by hand.

Free to start. No card needed.

Every picture on this page is a real file made with thirds.ai. Click View HTML on any of them to see how it’s built.

  • Design studio invoicePDF · A4
  • Weekend sale stickerImage · 1080 × 1080
  • Monthly KPI reportPDF · A4
  • Article share cardImage · 1200 × 630
  • Bistro evening menuPDF · A4
  • Business coach bannerImage · 1584 × 396
  • Festival day passPDF · 794 × 374
  • Mixtape coverImage · 1080 × 1080

The product

What thirds.ai does

thirds.ai gives you a PDF or image that looks professional, and then as many more as you need in the same design. You can make each one yourself in the studio, or ask ChatGPT or Claude to make it for you. Your layout, fonts, and colours can't shift, so a file from the AI is as safe to send as one you made by hand.

Start from a designer-made template

Pick the invoice or social post that’s closest to what you need, add your logo and colours, and change the words. Download it as a PDF or an image, and save it so every new file starts from there.

Browse the gallery
A square serum ad for Nettle and Field, with a big italic headline on forest green and an amber dropper bottle on a pedestal inside a coral gradient arch.
Product spotlight
A client invoice with a dark card that shows the total in big numbers, a lime dot pattern, and a clean list of the work below.
Client invoice

AI template chat

Describe the report you need, and the AI builds a first draft in your brand. Tell it what to change until you like it.

Learn more about AI template chat

Compared with other tools

What makes thirds.ai different

People compare us with Bannerbear, Templated, and a few PDF APIs before they buy. Here's where thirds.ai comes out ahead.

More files for your money

On Bannerbear, the Automate plan is $49 a month and makes 1,000 images or PDFs (Bannerbear’s pricing page, checked 24 September 2026). thirds.ai makes 2,500 files for $29 a month.

A free plan every month

Templated gives you 50 free files once as a trial, and Placid gives a trial with no monthly free plan. A verified thirds.ai account gets its free files again every month, so you can keep making a few files for free.

One editor for the design and its HTML

Here you start from a gallery design or a picture and move things around on a canvas, and the HTML is there for anyone on your team who codes. PDFShift and DocRaptor take the HTML you build in your own code, and neither shows a visual editor on the pages we read.

Your AI assistant does the whole job

Ask ChatGPT, Claude, Gemini, Grok, or any other AI you use for a file in plain words. It finds the details, fills your saved design, and hands you the finished file, through a connector called an MCP server. APITemplate.io and CraftMyPDF have an API for developers, and we found no such connector in the docs we read.

Who it’s for

Who thirds.ai is for

thirds.ai is for anyone who makes content for a business and wants it to look good without hiring a designer. If you already use ChatGPT or Claude for your work, it can hand you the finished files too. If one of these sounds like you, the use cases show the files you can make.

  • Marketers at small companies who want ads and social posts that look like an agency made them.
  • Designers who make one design and let their team make all the files from it.
  • Founders and makers who launch an app or a site and need marketing pictures fast.
  • People who post often or test many versions of the same ad.
  • Shops with many products to show, from product cards to sale stickers.
  • Small shops, clubs, charities, and side businesses that want one kind of document or picture to look really nice.
See the use cases
A monthly report for Harrow and Vale Architecture with September revenue as a large number on a deep green band, two key figures, and notes on what went well and what comes next.
Monthly report

Team

The team behind thirds.ai

We’re a small company in England, and we started thirds.ai on 10 September 2026. We built it because good design shouldn’t depend on having a designer, and because AI image tools can’t hold a brand steady. Fonts and colours drift, and someone has to check every picture. A template takes that drift away, so the AI can do the work and you can trust the result.

  • Max, Founder: Max started thirds.ai and builds the product. When you write to support, Max is the one who answers.
  • Theo Whitfield, Head of Content: Theo writes our guides and blog posts. They show you how to make invoices, reports, and social images step by step.
Read the blog
Max, founder of thirds.ai

Getting started

How to make your first file with thirds.ai

You can have your first finished PDF or image a few minutes after you sign up, in the studio or from the AI assistant you already use.

  1. Sign up free

    Your first files each month are free, so you can try it before you pay anything.

  2. Pick a design and make it yours

    Choose a design that’s close to what you need, add your logo, and change the words and pictures. Click Export to download your PDF or image.

  3. Ask your AI assistant for the rest

    Connect thirds.ai to ChatGPT, Claude, Gemini, Grok, or any other AI you use, and ask for new files in plain words. Each one comes out in your saved design with your brand in place.

Type your own name.

Colours, fonts, and logo

Put your brand on every design

Change the sample file
An email signature with a round portrait in a coloured ring, a green side panel, the name, role, and contact lines.
Portrait email signaturePNG · 1000 × 360

At a glance

Key facts about thirds.ai

Company name
thirds.ai
Type
PDF and image automation
Founded
10 September 2026
Founder
Max
Headquarters
England
Website
thirds.ai
Main product
Designer-made templates that make on-brand PDFs and images, and every new file in the same design
Pricing
Up to 50 free files a month. Paid plans from $29 a month or $290 a year, and credit packs from $10.
Contract terms
Pay monthly or yearly. Cancel at any time from Billing, and keep access until the period you paid for ends.
What we make
PDF, PNG, JPEG, and WebP files, and carousels of slides
Support
support@thirds.ai
Social
X: @thirds_ai
Competitors
Bannerbear, Templated, Placid, Orshot, APITemplate.io, CraftMyPDF, PDFShift, and DocRaptor

Every price is on the pricing page, with the plan table and the FAQ.

Frequently asked questions

Make your first file
Who runs thirds.ai?

Max, the founder, runs thirds.ai from England. The privacy policy names the company and everyone who helps us run the service. Read the privacy policy.

Where is my data processed?

Hetzner hosts the app, the database, and your files in Finland. When you use the AI chat, your message, your brand kit, and your picture go to OpenRouter and the model host it picks. Our privacy policy has the terms.

Do you read or log my files?

No. We never write your designs, pictures, or AI messages into our logs, and no one looks at your files unless you ask us for help with them. Finished files stay for up to a year on a paid plan and 30 days on the free plan, and you can delete one sooner.

What does a file cost?

One finished PDF, PNG, JPEG, or WebP costs 1 credit, and a file that fails costs nothing. Editing and the live preview are free. An AI build or a picture import costs 50 credits.

Do you change PDFs I already have?

No. We work on the design behind a file. Rebuild the layout here or upload a picture of it, and make every new PDF or image from that design.

How does thirds.ai make a file?

A real web browser opens your design and saves it as a PDF or image. That’s why your layout, fonts, and colours come out the way they look on the web.

How do I reach a person?

Email support@thirds.ai from the address on your account, and Max answers. The support page says what to include, and status.thirds.ai shows whether the service is up.

About us

Make your first file in a few minutes

Start from a template or ask your AI assistant for one, add your logo, and download the file.