Priced per site, so a single website is not paying for ten agents.
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Zinn® AI chat agent vs CustomGPT.ai
A fair comparison of the Zinn® AI chat agent and CustomGPT.ai: monthly prices, query allowances, model costs and trials.

The short answer
CustomGPT.ai starts at $99 a month for a team of agents. The Zinn® chat agent is priced per website, so a business with one site pays for one agent.
| Zinn® Agents | CustomGPT.ai | |
|---|---|---|
| How it is priced | A monthly price per site | Standard $99, Premium $499 a month[1] |
| What the price includes | Up to 2,000 answered messages a month per site | 1,000 or 5,000 queries a month, 10 or 25 agents[1] |
| AI model usage | Paid from AI credit, or your own Anthropic, Google, OpenAI or xAI key | Not itemised on the pricing page[1] |
| Free option | No free plan for the chat agent; a small free daily AI allowance on every account | 7-day free trial; a card is needed at sign-up[1] |
Sources
AI chat agent: $29 per month
Why websites choose the Zinn® chat agent over CustomGPT.ai
Bring your own AI key and pay the model provider directly.
Installs itself on WordPress sites we host — no embed code to manage.
Where it is the better choice
CustomGPT.ai is built for organisations running many agents over large document collections, with ten agents on its first plan. If you need several separate assistants trained on lots of content, it covers more ground.
Where Zinn® Agents fits better
For one website that should answer its visitors, the Zinn® chat agent is a fraction of the price, billed per site on the same account as your hosting, and can run on your own AI key.
How to switch from CustomGPT.ai in three steps
Add the agent to your site
Add the AI chat agent to the site in your Zinn Digital® account. On WordPress sites we host it installs itself; anywhere else you paste one line.
Choose what it reads
Point it at your hosted pages, a website it crawls, or text you paste. Give it your name, greeting and colour.
Test it, then remove CustomGPT.ai
Ask it the questions your customers ask. When the answers are right, take the CustomGPT.ai widget off your site so visitors see one assistant.
Questions about switching from CustomGPT.ai
How is the Zinn® chat agent priced compared with CustomGPT.ai?
One monthly price per site, with up to 2,000 answered messages a month. The AI model is paid from AI credit, or from your own provider key so you pay the provider directly.
Does it make up answers?
It answers from the pages and text you give it. When nothing there answers the question, it says so and offers a person instead of guessing.
Can I use my own AI provider key?
Yes — connect your own Anthropic, Google, OpenAI or xAI key and the model is billed by that provider directly.
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- Zinn® AI website builder vs 10Web
Competitor details are taken from the public pages linked above on the date shown. Prices and plans change; check the source before you decide.
Included with Zinn Digital® hosting
Host with us and the AI comes with the account
Every Zinn Digital® hosting account includes the MCP server, the Ask Zinn® assistant and the AI migration agent at no charge, plus a one-time welcome credit for the site builder. On our servers, the chat agent reads a static site straight from its files and installs itself on WordPress.