Alternatives · Chat & Assistants

SiteGPT alternatives

The closest alternatives to SiteGPT are Voiceflow, Chatbase and Retell AI, which also cover answering customer support and building chatbots for your website. 9 of the 15 listed here can be used for free, including Voiceflow and Chatbase. The lowest paid plan starts at $6 per month (ElevenLabs).

Alternatives
15
Free options
9
Updated
Nov 2026

Closest first: ordered by how many of SiteGPT's tasks each tool shares, then by popularity.

  1. 1

    VoiceflowVerifiedPay as you go

    A platform for support and CX teams to build, test, and deploy AI agents across chat and voice.

    Also does:Answering customer supportBuilding chatbots for your website

    Web · API

  2. 2

    ChatbaseVerifiedFree trial · from $40/mo

    Builds AI support and sales agents trained on your own content for chat, email, and voice.

    Also does:Building chatbots for your websiteAnswering customer support

    Web · API · iOS · Android · Command line

  3. 3

    Retell AIVerifiedPay as you go

    Build and run AI voice agents that answer and place phone calls for support, sales, and scheduling teams.

    Also does:Answering customer supportBuilding chatbots for your website

    Web · API

  4. 4

    CrispVerifiedFree tier · from $45/mo

    Crisp is a customer support platform with a shared inbox, website chat, and no-code AI agents for support teams.

    Also does:Answering customer supportBuilding chatbots for your website

    Web · iOS · Android

  5. 5

    TidioVerifiedFree tier · from $24.17/mo

    Customer service platform with an AI agent, live chat, and sales automation for online businesses.

    Also does:Answering customer supportBuilding chatbots for your website

    Web

  6. 6

    IntercomVerifiedFree trial · from $19/mo

    Customer service platform that pairs a shared helpdesk with an AI agent for support teams.

    Also does:Answering customer supportBuilding chatbots for your website

    Web

  7. 7

    BotpressVerifiedFree tier · from $150/mo

    Build AI support agents that resolve tickets and take actions like refunds, without code.

    Also does:Building chatbots for your websiteAnswering customer support

    Web · API

  8. 8

    Relevance AIVerifiedFree tier

    A platform for teams to build, run and monitor AI agents and multi-agent workflows.

    Also does:Building chatbots for your websiteAnswering customer support

    API

  9. 9

    ElevenLabsVerifiedFree tier · from $6/mo

    AI voice platform for generating speech, music, and sound effects, plus voice agents for creators and developers.

    Also does:Answering customer support

    Web · API

  10. 10

    ZapierVerifiedFree tier · from $19.99/mo

    Automation platform that connects apps and AI tools so teams can run and govern workflows.

    Also does:Building chatbots for your website

    API

  11. 11

    ChatPDFVerifiedFree tier

    Upload a document, ask questions in plain language, and get answers with page citations.

    Also does:Building chatbots for your website

    Web

  12. 12

    FinVerifiedPay as you go

    AI customer agent that resolves support, sales and ecommerce conversations for service teams.

    Also does:Answering customer support

    API

  13. 13

    LindyVerifiedFree trial · from $29.99/mo

    An AI teammate that plugs into your work apps to run scheduled and on-demand tasks for your team.

    Also does:Answering customer support

    Web

  14. 14

    ZendeskVerifiedFree trial · from $19/mo

    A customer service platform that combines ticketing, support channels, and AI agents for service teams.

    Also does:Answering customer support

    Web · API

  15. 15

    CustomGPT.aiFree trial · from $99/mo

    Builds a ChatGPT-powered assistant trained on your business documents and websites.

    Also does:Answering customer support

    Web · API

At a glance

ToolPricingFreePlatformsAPIChecked
SiteGPTFree trial · from $39/moNoiOS, APIYesNov 4, 2026
VoiceflowPay as you goYesWeb, APIYesNov 4, 2026
ChatbaseFree trial · from $40/moYesWeb, API, iOS, Android, Command lineYesNov 4, 2026
Retell AIPay as you goNoWeb, APIYesNov 4, 2026
CrispFree tier · from $45/moYesWeb, iOS, AndroidYesNov 4, 2026
TidioFree tier · from $24.17/moYesWebYesNov 4, 2026
IntercomFree trial · from $19/moNoWebYesNov 4, 2026
BotpressFree tier · from $150/moYesWeb, APIYesNov 4, 2026
Relevance AIFree tierYesAPIYesNov 4, 2026
ElevenLabsFree tier · from $6/moYesWeb, APIYesNov 3, 2026
ZapierFree tier · from $19.99/moYesAPIYesNov 3, 2026
ChatPDFFree tierYesWebYesNov 4, 2026
FinPay as you goNoAPIYesNov 4, 2026
LindyFree trial · from $29.99/moNoWebNoNov 4, 2026
ZendeskFree trial · from $19/moNoWeb, APIYesNov 4, 2026
CustomGPT.aiFree trial · from $99/moNoWeb, APIYes—

Common questions

What is the best alternative to SiteGPT?
Voiceflow is the closest match: it also covers answering customer support and building chatbots for your website. Chatbase and Retell AI come next. Alternatives are ordered by how many of SiteGPT's tasks they share, then by how popular they are.
Is there a free alternative to SiteGPT?
Yes. Voiceflow, Chatbase and Crisp can be used for free. Voiceflow has a free tier and then charges by usage.
What is the cheapest alternative to SiteGPT?
Among paid plans, ElevenLabs starts lowest at $6 per month, against $39 for SiteGPT.
Which SiteGPT alternatives have a mobile app?
Chatbase and Crisp have an iPhone or Android app.