Show HN: Thirds.ai – Beautiful, on-brand images and PDFs from templates

Thirds.ai launched as a template-based tool that generates on-brand images and PDFs, with the company claiming it is trusted by 140+ teams that ship branded files weekly. The product lets users start from a designer-made template or generate one via ChatGPT or Claude, add a logo and colors, then produce files through integrations including Claude, Cursor, ChatGPT, Gemini CLI, Grok, Codex, VS Code, Zed, Warp, Node, Python, n8n, and REST. Thirds.ai says a first design is ready to send in under five minutes and offers free start with no card required.

On-brand images and PDFs Beautiful, on-brand images and PDFs from templates you set up once Start from a designer-made template, or ask ChatGPT or Claude for one, and add your logo and colours. From then on, you or your AI assistant make as many new files from it as you need, each one finished and in your brand. Free to start. No card needed. Your brand or 1. 01Pick a template you like 2. 02Add your logo and colours 3. 03Make a new file whenever you need one Works with - Claude - Cursor - ChatGPT - Gemini CLI - Grok - Codex - Hermes - VS Code - Zed - Warp - Node - Python - n8n - REST Trusted by 140+ teams that ship branded files every week - Ember Coffee - Fieldnote Labs - Harbour Print - Kestrel Events - Lumen Skincare - Marlow & Co - Meridian Agency - Orbit Media - Signal Studio - Keystone Coaching The problem Every new picture or PDF still gets built by hand You need a post today and a quote for a new client. Each one means opening the design tool and building it by hand again. With thirds.ai the design is already done, so you or your AI assistant make the file in a minute. Today Each file built by hand can slip to an old logo or a wrong price. With thirds.ai Every quote, invoice, and post comes from one finished design, so they all match. See it work How to make PDFs and images from one template Set the design up, and you, your AI assistant, and your own tools get finished files from it. 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 What you can do Make one design, and get the rest from it Start from a template, a sentence in the AI chat, or a picture you like. Then the same design fits every size, takes your brand kit, and fills itself for each client or order. Smart resize Pick the sizes you need, and one design fits each of them, from a story to a wide banner. See the editor https://thirds.ai/template-editor Visual editor Mark the name and the price that change from file to file, then move or restyle the rest until it's yours. See the editor https://thirds.ai/template-editor AI chat Describe the design you want, and the AI chat builds it in your colours, ready to use. See the AI chat https://thirds.ai/ai-template-generator Image to design Upload a picture you like, and get it back as a design of your own, in your logo and colours. See image to design https://thirds.ai/image-to-template 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 https://thirds.ai/brand-kits From your app Your app sends the client's name and total, and gets the finished PDF back. Read the quickstart https://thirds.ai/docs/quickstart Start a design Start from a designer-made template, or from your own idea Pick the way in that fits you. Each one ends in a design you own, in your brand, ready for its first file. - Pick a designer-made template Start from an invoice, a menu, or a social post in the gallery. https://thirds.ai/gallery - Describe it to the AI chat Say what you need, and the chat drafts it for you. https://thirds.ai/ai-template-generator - Paste your own HTML Bring a layout you already made, and keep working on it here. https://thirds.ai/html-to-pdf - Upload a picture Turn a picture you like into a design you can change. https://thirds.ai/image-to-template Try it now Make your first file right here Add your brand to this ad, then change the headline or the price and download it. Many at once Make a file for every row of your spreadsheet Upload a spreadsheet with one row for each client, product, or guest. You get a finished PDF or image for every row, each with the right name on it, all in one ZIP. | Client | Invoice | Total | |---|---|---| | Harbour Bistro | INV-1042 | $1,240 | | Kestrel Events | INV-1043 | $860 | | Lumen Skincare | INV-1044 | $2,310 | | Orbit Media | INV-1045 | $495 | | Marlow & Co | INV-1046 | $4,860 | | Signal Studio | INV-1047 | $1,720 | These designs come from the gallery. Click one to see three finished versions side by side. From your AI assistant Ask ChatGPT, Claude, Gemini, or Grok, and get finished files back Connect thirds.ai to ChatGPT, Claude, Gemini, Grok, or any other AI you use. Then ask for the weekend's passes or a set of ads to test, in plain words. The assistant finds the names, dates, and prices, fills your saved design, and hands you the files. Your own app can do the same through the API. Make the passes for Friday, Saturday, and Sunday. thirds · create pdf × 3 Your three passes are ready to download. Connects to the tools you already use - Claude - Cursor - ChatGPT - Gemini CLI - Grok - Codex - VS Code - Zed - Warp - Node - Python - n8n Customer stories What customers make from one saved design Who it's for Made for marketers and small businesses that make their own files - Marketing teamsMake your posts and ad versions in your brand, as many as you need. - AgenciesSend each client a report and an invoice in their own brand, from one layout. - Small businessesSend quotes, receipts, and menus that look like a designer made them. - AI assistants and developersAsk your AI assistant for a file, or make one from your own code. Pricing Start free, then pick a plan when you need more files 2,500 files a month - FreeMake up to 50 PDFs or images every month, or use your credits to build a design with AI. $0 no card neededfree all year $0 no card neededfree all year - 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 - StarterYou make images and client documents most weeks and want a steady monthly allowance. $290 per yearabout $24 a month Save $58 a year $29 per monthor $290 a year Save $58 a year 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 GrowthYou make campaign images and client documents every day and want room to grow. $790 per yearabout $66 a month Save $158 a year $79 per monthor $790 a year Save $158 a year - 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 ScaleYou make thousands of images and PDFs a month and want your work first in line. $1,990 per yearabout $166 a month Save $398 a year $199 per monthor $1,990 a year Save $398 a year - 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. Questions people ask before they start Create your first design https://thirds.ai/studio/dashboard What is PDF automation? PDF automation means you make the same kind of PDF again and again without building each one by hand. In thirds.ai you save a design once. Then you fill in the new name and price, or your AI assistant or your own code does, and you get a finished PDF or image each time. Can I try thirds.ai without an account? Yes. Change the words on the sample ad on this page and download it, or open the playground to try more designs. 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. Is thirds.ai an AI image generator? No. An image generator draws a new picture each time, so fonts and colours drift and words come out wrong. thirds.ai fills a design that you can edit, with layers like a design file, so every file looks like your brand and the words come out right. The editor can also make a picture to place inside a design. What can I change in a template? Everything on it, from the words and pictures to the colours and layout. Once it's saved, every new file keeps that look. Can ChatGPT or Claude make files from my design? Yes. Connect ChatGPT, Claude, Cursor, or another AI tool through the MCP server, and ask for files in plain words. From your own code, call the REST API in any language. How much does a finished file cost? Each finished 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 one after it keeps the same look.