Website AI chatbot · comparison
MySiteGPT vs CustomGPT
Updated
The short version
A no-hallucination RAG agent platform that builds citation-backed AI assistants from your content and documents, aimed at businesses and agencies.
CustomGPT.ai and MySiteGPT start from the same conviction: an AI assistant should answer from your content, cite its sources, and refuse to make things up. CustomGPT has built that idea into a fuller platform — many agents, large document limits, a RAG API, team seats — and prices it for businesses and agencies, historically from around $99/mo on its Standard tier (check customgpt.ai). It's a capable, mature product if you need that surface area.
If you're a bootstrapped or pre-revenue SaaS team and that price tag is the thing giving you pause, MySiteGPT is a deliberately smaller CustomGPT alternative. You get the same two things that matter to a technical buyer — visitor-facing [n] citations on every claim and an honest fallback that returns your configured message instead of guessing — for a flat $9.99/mo, with OpenAI included and managed so there's nothing to configure. It does one job: a trustworthy cited website assistant with built-in lead capture.
| Feature | MySiteGPT | CustomGPT |
|---|---|---|
| Cited answers | Every factual claim carries a [n] marker tied to the exact source page or document; visitors open a source card to verify. It's the core promise, not a setting. | Anti-hallucination and inline citations are a headline feature too — this is a genuine point of parity, not a place we clearly win. |
| When it doesn't know | Answers strictly from your content, never the open web. Low retrieval confidence returns your fallback message and logs the miss as an 'unanswered question' to fix in one click. | Also built around not hallucinating and citing sources; the exact low-confidence behavior and gap-logging workflow differ — check their docs. |
| Pricing | Flat $9.99/mo Pro, OpenAI included and managed. No seats, no per-resolution metering. 14-day trial, no credit card. | Query/document-based plans leaning toward business and agency budgets — Standard historically around $99/mo, higher tiers well above. Verify at customgpt.ai. |
| Scale & agents | Pro is 3 bots / 1,000 pages / 3,000 messages a month. Sized for a small team's site and docs, not a fleet of clients. | Built for many agents, large per-agent document limits and team seats — better if you're running lots of assistants or client projects. |
| Content sync | Auto re-crawl daily at a time you choose — keeps the bot current as your site and docs change. | Offers content sync as well, often on higher tiers; cadence and tier details vary, so check their plans. |
| Lead capture | Collects an email in chat after a helpful reply, emails you the transcript instantly, and fires a per-bot lead.created webhook to Slack, Zapier, Make or n8n. Included on every plan. | More of an agent/knowledge platform than a lead engine; capturing and routing leads may need its API or external glue — confirm what's built in. |
| Trial & data | 14-day free trial, no card. After trial the widget silently goes offline; bots, training, conversations and leads are kept 30 days to reactivate in one click. | Trial terms and post-trial data handling differ by plan — see their current terms before committing. |
Pricing and plan details are compared in good faith from public materials as of June 2026 and may have changed — confirm current CustomGPT plans, query and document limits on customgpt.ai before deciding.
Why SaaS builders choose MySiteGPT over CustomGPT
- Point it at your docs, changelog and API reference; auto-sync re-crawls every release so the assistant stops citing last quarter's behavior — without paying for a multi-agent platform you won't fill.
- A flat $9.99/mo with OpenAI included and managed means support deflection runs at a predictable cost, instead of a bundled, query-metered tier that gets expensive as traffic grows.
- Cited answers plus an honest fallback keep you from being confidently wrong about your own limits or endpoints — the kind of mistake a technical buyer notices immediately and never forgives.
- Embed the same widget on your marketing site and in-app via Shadow DOM or an inline mount, then pipe every captured lead straight to Slack or your CRM through the per-bot webhook.
When CustomGPT is the better pick
If you're an agency or a larger business that needs to run many separate assistants, ingest tens of thousands of documents per agent, hand out team seats, and build on a mature RAG API — and the budget is there — CustomGPT is purpose-built for exactly that and a solid choice. MySiteGPT intentionally stops at a few bots and a few hundred to a thousand pages, so a fleet of client agents or enterprise-scale ingestion is simply outside what it's designed to do.
MySiteGPT vs CustomGPT: frequently asked questions
Is MySiteGPT a good CustomGPT alternative for SaaS?
Yes, if what you actually need is one or two trustworthy cited website assistants rather than a fleet of agents. You get the same anti-hallucination posture — every claim cites a [n] source, and low-confidence questions return your fallback instead of a guess — at a flat $9.99/mo with OpenAI included and managed. If you need many agents, large per-agent document limits and team seats, CustomGPT is the broader platform.
How does MySiteGPT pricing compare to CustomGPT?
MySiteGPT is a flat $9.99/mo Pro plan with OpenAI included and managed, and no seats or per-resolution billing. CustomGPT historically starts around $99/mo on its Standard tier with query and document limits, rising for higher tiers — confirm current plans at customgpt.ai, as pricing changes.
Do both products cite their sources and avoid hallucinating?
Both make grounded, citation-backed answers a selling point, so on that core promise they're closely matched. MySiteGPT answers strictly from your content, shows an openable source card per [n] marker, and falls back to your configured message when retrieval confidence is low. CustomGPT markets similar anti-hallucination behavior; the exact mechanics differ, so check their docs.
Do I need to bring an AI model or API key to MySiteGPT?
No — OpenAI is included and managed on the flat $9.99/mo Pro plan, and MySiteGPT provides the retrieval embeddings, so there's nothing to choose or configure. CustomGPT has historically been a managed platform with the model bundled in as well; verify on their site if the details matter to you.
Will MySiteGPT scale to many agents for an agency the way CustomGPT does?
No, and that's by design. MySiteGPT's Pro plan caps at 3 bots and 1,000 pages — sized for a single SaaS team's site and docs. If you're running many client assistants with large document sets and seats, CustomGPT is built for that and the better fit.
See the cited answers for yourself
The chat bubble on our homepage is the product, trained on our own site — ask it anything and watch every claim link back to its source.