Prices and plan details were checked on the vendors' own pricing pages on September 26, 2026 and can change — always confirm on the vendor's site. CustGPT publishes this page and is one of the products compared. Product names are trademarks of their respective owners; CustGPT isn't affiliated with or endorsed by them.
CustGPT and SiteGPT solve the same problem: turning your website and documents into an AI agent that answers customers. Because the plan limits line up closely, this is one of the easiest comparisons to make — you're mostly comparing price and the extras each includes.
Quick verdict
- Choose CustGPT if you want a small-site plan from $19.99, or the same capacity as SiteGPT for less, branding removal included from Growth up, premium AI models on every paid plan, and built-in actions, human handoff and lead capture.
- Choose SiteGPT if its iOS app or its Messenger and Zendesk integrations are essential to your team's workflow.
Pricing compared
| Plan | CustGPT monthly | SiteGPT monthly | CustGPT yearly (per month) | SiteGPT yearly (per month) |
|---|---|---|---|---|
| Basic | $19.99 | No equivalent plan | $12.42 | No equivalent plan |
| Starter | $49 | $59 | $29 | $39 |
| Growth | $119 | $129 | $69 | $79 |
| Scale | $419 | $429 | $249 | $259 |
| Remove branding | Included on Growth & Scale | +$39 / month | Included on Growth & Scale | +$39 / month |
Real-world example: a team on the Growth tier that wants its own branding pays $119 a month with CustGPT and $168 with SiteGPT (plan plus add-on) — $588 a year more for the same limits.
Limits compared
| Limit | CustGPT (Starter / Growth / Scale) | SiteGPT (Starter / Growth / Scale) |
|---|---|---|
| Chatbots | 1 / 2 / 3 | 1 / 2 / 3 |
| Pages & documents | 1,000 / 10,000 / 50,000 | 1,000 / 10,000 / 50,000 |
| AI replies per month | 4,000 / 10,000 / 40,000 | 4,000 / 10,000 / 40,000 standard-model |
| Premium-model replies | 400 / 1,000 / 4,000 in addition | Shared allowance: 400 / 1,000 / 4,000 advanced instead of standard |
| Team members | 1 / 4 / 10 | 1 / 4 / 10 |
| Free trial | 7 days on every plan | Not listed on pricing page |
The premium-model difference matters if you want the best answers for complex questions: on CustGPT, premium replies are an extra allowance, and when they run out replies simply continue on the standard model.
Features compared
| Feature | CustGPT | SiteGPT |
|---|---|---|
| Train on website, sitemap and files | ✅ | ✅ |
| Answers with source links | ✅ | ✅ |
| Automatic content refresh | ✅ Monthly (Growth), weekly + new-page scan (Scale) | ✅ Monthly (Growth), weekly + daily scan (Scale) |
| Actions that call your APIs | ✅ All plans | Not listed on pricing page |
| Human handoff with live replies | ✅ All plans | Not listed on pricing page |
| Lead capture + leads inbox | ✅ All plans | Not listed on pricing page |
| Choice of premium model (Claude, GPT, Gemini) | ✅ | Advanced model included |
| Slack notifications | ✅ Growth+ | ✅ Growth+ |
| Telegram channel | ✅ Growth+ | Not listed on pricing page |
| Messenger / Zendesk integrations | Via webhooks | ✅ Growth+ |
| Webhooks | ✅ Growth+ | ✅ Scale |
| REST API | ✅ Growth+ | ✅ Growth+ |
| iOS app | — | ✅ Growth+ |
| Weekly digest email | ✅ Growth+ | ✅ Growth+ |
| Team roles & invites | ✅ | ✅ |
"Not listed on pricing page" means we couldn't confirm the feature from SiteGPT's public pricing page — check with SiteGPT if it matters to you.
Point CustGPT at your site and get an AI agent that answers from your content, with sources. Every plan starts with a 7-day free trial.
Answer quality
Both products use retrieval-augmented generation: they search your content for relevant passages and have a language model write the answer. In practice, answer quality depends far more on the content you give either tool than on the tool itself. CustGPT adds an honest fallback message you control, custom answers that take priority for sensitive topics, and a choice of premium models for complex questions.
The only reliable way to compare answer quality is to train both on the same content and ask the same 20 real customer questions.
Switching from SiteGPT to CustGPT
- Start a CustGPT trial on the plan that matches your SiteGPT plan.
- Paste your website address (or sitemap) — CustGPT crawls the same pages.
- Upload any documents and recreate custom answers you rely on.
- Copy your instructions, greeting and suggested questions into Settings.
- Replace the SiteGPT embed code with CustGPT's single script tag.
Most switches take under an hour.
Frequently asked questions
Is CustGPT cheaper than SiteGPT?
Yes. CustGPT is $10 a month cheaper on every plan, billed monthly or yearly, and includes branding removal on Growth and Scale, which SiteGPT charges $39 a month for.
Do CustGPT and SiteGPT have the same limits?
The chatbot, page, monthly reply and team-seat limits match on Starter, Growth and Scale. CustGPT adds a separate premium-model allowance on top.
Which has better answers, CustGPT or SiteGPT?
Both answer from your content using large language models, so accuracy mostly depends on your content. Test both on your real top questions to compare.
Can I move my SiteGPT chatbot to CustGPT?
Yes. Point CustGPT at the same website and documents, copy your settings across and swap the embed code on your site.