thirds.ai vs AdKit
AdKit finds competitor ads, clones one with AI on your own OpenAI or Gemini key, and runs your campaigns through an AI agent (vendor claims, checked 12 October 2026). thirds.ai makes the ads once you know what to run. Upload the ad you like and the AI rebuilds it as an editable design in your logo, colours, and fonts, with the headline, the offer, and the photo as fields. From then on, ChatGPT, Claude, or your own automations make every version and every size, and each finished ad costs one credit.
We aren't connected to AdKit. AdKit is a trademark of its owner.
- 1 credit
- makes 1 PDF or image
- 50 credits
- free every month, no card
- $29
- a month for Starter, with 2,500 credits
- 4 formats
- PDF, PNG, JPEG, and WebP
Feature by feature
What's different
| What you need | thirds.ai | AdKit |
|---|---|---|
| Inputs | Describe it to the AI, paste your own HTML, or upload a picture that becomes a design you can edit. | Ads from its library of 1M+ ads, any image captured with its Chrome extension, or your website plus a few details about your business (vendor claim). |
| Outputs | PDF, PNG, JPEG, and WebP. Add a size and the layout fits itself to it. | Static ads you can resize to 1:1, 16:9, and 9:16 and export (vendor claim). The pages we read don't name the file format, and the cloner doesn't do video ads (vendor claim). |
| What you get after the first ad | A design with fields for the headline, the offer, and the photo, so every version keeps the same layout where a new AI picture can move things. | A generated picture you can "edit text, swap elements, and iterate with AI" (vendor claim). We couldn't confirm a layered editable template from the pages (our reading). |
| Brand kits | Save your logo, colours, and fonts once, or type your website address and the kit builds itself. Pick the kit and the ad comes out in your brand. | A brand kit the AI uses when it creates or clones an ad, and the cloner swaps in your text, colours, and product (vendor claim). |
| API and MCP | A REST API at /v1/image, /v1/pdf, and /v1/templates, an MCP server for ChatGPT, Claude, and other assistants, webhooks, and Zapier, Make, and n8n. | An MCP server and a CLI on every plan, so an agent can research ads, draft campaigns, and make ads, plus a ChatGPT plugin and a Claude connector (vendor claim). We found no public REST API on the pages we read (our reading). |
| Ad discovery | Not a feature. | A library of 1M+ ads across Meta, Google, LinkedIn, TikTok, Reddit, and X, competitor tracking, a swipe file, and a weekly digest (vendor claim). |
| Running the campaign | Not a feature. thirds.ai makes the files, and you place them yourself or through your own automation. | Draft and launch Meta and Google campaigns through its AI agent, with every change a draft until you approve it (vendor claim). |
| Pricing model | One credit makes one PDF or image, and the AI cost is inside the credits. Starter is $29 a month for 2,500 credits. Extra credits cost $0.015 each on a paid plan. | Single Project from $29 a month and Multiple Projects from $49 a month, with no per-ad fee from AdKit. AI generation runs on your own OpenAI or Gemini key, which you pay for (vendor prices, checked 12 October 2026). |
| Free tier | 50 free credits a month for a verified account, no card. Making a design with AI or from a picture costs 50 credits, which is a whole free month. Starting from a gallery design costs only the files you export. | A 7-day free trial, and your card isn't charged until it ends (vendor claim). We didn't see a free plan (our reading). |
| Where it fits | Ad makers who want many angles to test, in every size, made by an AI assistant or an automation with no one at the screen. | Marketers who want research, AI clones, and campaign launches in one place, and who have their own OpenAI or Gemini key (our reading). |
Pricing
How much does AdKit cost compared with thirds.ai?
The cheaper tool depends on how many files you make each month and what kind they are. Here's what AdKit and thirds.ai each cost, and how each one counts a file.
- AdKit charges a flat plan fee and no per-ad fee, and you pay OpenAI or Gemini for each clone or generation on your own key. thirds.ai charges one credit per finished file, with the AI cost inside the credits, so there's no second bill to watch.
- On 12 October 2026, the AdKit pricing page listed Single Project from $29 a month for one brand and Multiple Projects from $49 a month for unlimited brands, and said paying yearly saves 30% or more. Its cloner page says an ad costs about $0.05 on your own OpenAI or Gemini key (vendor prices and claims).
- One thirds.ai credit makes one finished ad image. Building a design with AI or rebuilding one from a picture costs 50 credits, a later text or HTML change costs 25, and a new picture or an AI-made image costs 50. Adding a size to a saved design is free, and each size you export costs one credit. A file that fails costs nothing. See credits and billing.
- Say you run 200 ad versions a month. In thirds.ai that's 200 credits, well inside Starter's 2,500. In AdKit it's the $29 plan plus about $10 on your own key at AdKit's $0.05 estimate (vendor claim). The plan fee is the same at the low end, so the real difference is the key bill and whether you get a picture or a design with fields.
Where thirds.ai wins
One ad becomes an editable design in your brand
AdKit's cloner makes a new AI picture from a competitor's ad and swaps in your text, colours, and product (vendor claim, checked 12 October 2026). Each clone is a new AI picture, so in our reading nothing keeps the headline in the same place from one clone to the next.
thirds.ai rebuilds the ad as a design with fields. The headline, the offer, and the product photo become boxes, and the layout, fonts, and spacing stay where they are on every version. Change the offer and you get the same ad with a new offer, not a new guess. Try it on image to template.
Where thirds.ai wins
Every size and every offer at once
Click Smart resize on a saved design and pick the sizes you run, such as square, story, and banner, or type your own. Each size gets a fitted layout right away, and adding one costs nothing until you export it. AdKit resizes an ad to 1:1, 16:9, and 9:16 (vendor claim, checked 12 October 2026).
For many offers, give each one a row in a spreadsheet and get one ad per row in one batch. Twenty headlines to test become twenty ads with nobody at the screen, and you run the batch again for each size you need. See smart resize for the sizes.
Where thirds.ai wins
Your assistant makes the next hundred ads
Both tools connect to an AI agent. AdKit's MCP server and CLI let an agent research ads, draft campaigns, and make ads, on every plan (vendor claim, checked 12 October 2026). thirds.ai's connector gives ChatGPT, Claude, Gemini, Grok, or any other AI you use your saved designs, so you ask for the Black Friday version in three sizes and get the finished files back in your brand.
When nobody is asking, your own automation does the same through the API, webhooks, or Zapier, Make, and n8n. There's nothing to install, where AdKit's agent setup uses its CLI and its ad capture uses a Chrome extension (vendor claims, checked 12 October 2026). Keep AdKit for placing the ads, because thirds.ai doesn't run campaigns.
No code needed
How do you make ad versions in the thirds.ai editor without code?
You can make every version of a static ad in the thirds.ai editor in three steps, with no code. You need a free account, and each finished image costs one credit.
- Open an ad design, such as the Product photo ad, and click Use this template. Or rebuild your own ad from a picture.
- Type your brand name, headline, price, and button label into the boxes beside the ad, and upload your product photo.
- Click Export to download it as a PNG, JPEG, or WebP. For the next version, ask ChatGPT or Claude for it in plain words, or paste a spreadsheet of offers and get one ad per row.
Switching
Moving from AdKit
There's nothing to export from AdKit. Upload the ad you want to reuse and thirds.ai rebuilds it as a design in your brand, with the headline, the offer, and the photo as fields. Then your assistant or your own automations make each new version in every size.
Start with image to template to see how the rebuild works. Then read the static ads use case to see how to make many versions, or pick a layout from our 15 static ad examples. Add the sizes you need on one saved design, check each layout, and export the set. Keep your AdKit research, swipe file, and campaign tools where they are, because thirds.ai doesn't replace them.
Checked and dated
Sources
We checked AdKit's features, prices, and bring-your-own-key rules on 12 October 2026. Where we say which tool fits, that's our opinion.
- AdKit home page, checked 12 October 2026
- AdKit pricing, checked 12 October 2026
- AdKit ads cloner, checked 12 October 2026
- AdKit AI ads generator, checked 12 October 2026
- AdKit docs, checked 12 October 2026
- thirds.ai facts come from our pricing page, API reference, and billing guide.
Free to try
Make your first file free
Open the Weekend sale sticker design, change the offer, and download a free sample ad. To rebuild your own ad instead, read Image to template. A rebuild costs 50 credits.
Start from a designer-made template and download a real file for free. Sign up, and ChatGPT or Claude can make the next one in your brand.