Live chat, helpdesk and Lyro AI agent for small and mid-size ecommerce businesses.
CustomGPT.ai vs SiteGPT
Features, pricing, strengths and trade-offs — and which one fits your situation.
The verdict
Summary
CustomGPT.ai is best for businesses that need accurate, citation-backed answers from large document collections, while SiteGPT is best for small businesses wanting a website support chatbot trained on their existing content. Neither has a permanent free plan, but you can start with a free trial.
Which should you choose?
Choose CustomGPT.ai if…
- You need businesses that need accurate, citation-backed answers from large document collections
- You're one of: knowledge-heavy businesses, publishers and educators, internal knowledge base teams
- Strong focus on answer accuracy with cited sources
Choose SiteGPT if…
- You need small businesses wanting a website support chatbot trained on their existing content
- You're one of: small businesses, saas companies with docs sites, teams already using crisp or zendesk
- Simple setup focused on website support
At a glance
| CustomGPT.ai | SiteGPT | |
|---|---|---|
| Best for | Businesses that need accurate, citation-backed answers from large document collections | Small businesses wanting a website support chatbot trained on their existing content |
| Free plan | Trial only | Trial only |
| Starting price | From $99/mo | From $39/mo |
| Learning curve | Low | Low |
| Platforms | Web, API | Web, iOS, API |
| Ideal for | Knowledge-heavy businesses, Publishers and educators, Internal knowledge base teams | Small businesses, SaaS companies with docs sites, Teams already using Crisp or Zendesk |
Feature comparison
| CustomGPT.ai | SiteGPT | |
|---|---|---|
| Train on your website / docs | Yes | Yes |
| Human handoff | — | Growth plan and above |
| Website widget | Yes | Yes |
| Limited | No | |
| Instagram / Messenger | — | Messenger only |
| Live chat inbox | No | Growth plan and above |
| Multilingual | 90+ languages | Yes |
| Takes actions / API calls | — | — |
| Analytics | Yes | Yes |
IncludedLimited / higher plansNot available— Not confirmed
Security & enterprise
| CustomGPT.ai | SiteGPT | |
|---|---|---|
| Business / enterprise plan | Yes | Yes |
| SSO (SAML / OIDC) | Enterprise plan | — |
| SCIM user provisioning | Enterprise plan | — |
| SOC 2 | Type II | Type II |
| ISO 27001 | — | — |
| HIPAA (BAA available) | — | Enterprise plan (BAA) |
| GDPR DPA | Yes | Enterprise plan |
| Data residency options | — | — |
| No training on your data | — | Yes |
| Audit logs | Yes | — |
| Admin controls | Yes | — |
| Deployment | Cloud | Cloud |
From each vendor's security documentation. "—" = not confirmed. What to ask vendors · Compare all tools
What each tool does
CustomGPT.ai
CustomGPT.ai is a no-code retrieval-augmented generation (RAG) platform that builds AI agents from websites, sitemaps, documents, videos and audio. Answers include citations and are restricted to your content to reduce hallucinations. It is used by businesses, publishers and internal knowledge teams with large or varied content libraries.
Key features- Ingests websites, sitemaps and 1,400+ document formats
- Indexes YouTube videos and audio files
- Citations and anti-hallucination controls on every plan
- Support for 90+ languages
- RAG API for building custom apps
- Connectors for Google Drive, Notion, Confluence, Zendesk and HubSpot
SiteGPT
SiteGPT builds an AI chatbot from your website, sitemaps, YouTube videos, files and connected sources like Notion and Google Drive. The bot is embedded as a website widget and can also answer in Slack, Messenger and several helpdesk tools. Higher plans add a live inbox app for human takeover and more detailed analytics.
Key features- Trains on website links, sitemaps, YouTube and uploaded files
- Connectors for Notion, Google Drive, Dropbox, OneDrive and GitHub
- Answers in the visitor's language
- iOS app for human takeover on Growth plan and above
- Knowledge-gap reports with one-click Q&A fixes
- Channels include Slack, Google Chat, Messenger, Crisp and Zendesk
Pricing
CustomGPT.ai
No free plan; 7-day free trial; paid from $99/mo ($89/mo billed annually) Standard
SiteGPT
No free plan; 7-day free trial (card required); paid from $39/mo billed yearly ($59 monthly)
Prices last checked September 2026. Plans change often — confirm on each vendor's site.
Pros and cons
CustomGPT.ai
Strengths- Strong focus on answer accuracy with cited sources
- Handles very large content volumes and many file types
- API access included from the entry plan
- Wide language support
- No free plan, only a short trial
- No native WhatsApp or Messenger channel; requires Make or Zapier setup
- No built-in live chat inbox for human agents
- Entry plan keeps only 7 days of analytics history
Not ideal for: Teams wanting a combined chatbot and live chat helpdesk should look at Tidio or Intercom Fin instead.
SiteGPT
Strengths- Simple setup focused on website support
- Broad range of training sources on every plan
- Knowledge-gap reporting helps improve answers
- Works inside existing helpdesks such as Crisp and Zendesk
- No free plan; trial requires a card
- No WhatsApp or Instagram channel
- Branding removal is a paid add-on
- API access and human takeover need Growth plan or higher
Not ideal for: Businesses that sell through WhatsApp or Instagram should choose a tool with native social channels such as ManyChat or Tidio.
Integrations
CustomGPT.ai
SiteGPT
FAQ
What is the main difference between CustomGPT.ai and SiteGPT?
CustomGPT.ai is built for businesses that need accurate, citation-backed answers from large document collections; SiteGPT is built for small businesses wanting a website support chatbot trained on their existing content.
Is CustomGPT.ai or SiteGPT cheaper?
CustomGPT.ai starts from $99/mo and SiteGPT starts from $39/mo (as of September 2026). On entry price, SiteGPT is cheaper — but compare what each plan includes, since limits differ. Always confirm current pricing on each vendor's site.
Do CustomGPT.ai and SiteGPT have free plans?
Neither has a permanent free plan, but you can start with a free trial.
Which is easier to use, CustomGPT.ai or SiteGPT?
Both have a low learning curve.
What are good alternatives to CustomGPT.ai and SiteGPT?
Other chatbots tools worth comparing include Tidio, Chatbase and ManyChat.
