AI · alternatives · 2026

24 alternatives to Kastro

Create AI support agent on top of ChatGPT

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Kastro launched in 2023; newer entries below may have overtaken it.

1. 1
   SupportGPT▲62

   Generative AI for customer support automation, with ChatGPT

   2023 · forethought.ai · its alternatives →

2. 2
   Chatwith▲249

   Website ChatGPT that does more than just chatting

   2023 · chatwith.tools · its alternatives →

3. 3
   ChatGPT agent▲545

   Bridging research and action

   2025 · openai.com · its alternatives →

4. 4
   Chatio.ai▲202

   ChatGPT like chatbot for your website

   2023 · its alternatives →

5. 5
   YourGPT Chatbot Studio▲331

   Build powerful conversational AI agents

   2024 · yourgpt.ai · its alternatives →

6. 6
   Chatfuel AI▲456

   Take customer communication to the next level

   2023 · chatfuel.com · its alternatives →

7. 7
   Intelswift AI Agents Marketplace▲117

   AI customer service automation

   2025 · intelswift.com · its alternatives →

8. 8
   Supportbot Pro▲90

   Custom ChatGPT chatbot for your website

   2024 · its alternatives →

9. 9
   Chat Interface for OpenAI Assistants▲119

   ChatGPT-like customer interactions in a website widget

   2024 · openwidget.com · its alternatives →

10. 10
    AI Agents▲123

    In 10 secs, build a squad of ChatGPT assistants to help you

    2023 · dailybot.com · its alternatives →

11. 11
    Supster▲156

    Create your own ChatGPT & create a passive source of income

    2023 · its alternatives →

12. 12
    SupportGPT – Generative AI for customer support automation, w ChatGPT▲25

    SupportGPT

    2023 · forethought.ai · its alternatives →

13. 13
    DataSavvy.Chat▲102

    Let AI handles customer support and lead generation for you

    2024 · datasavvy.chat · its alternatives →

14. 14
    Support Guy▲104

    Never miss a customer inquiry again with AI powered chatbots

    2023 · its alternatives →

15. 15
    AI Chat ▲102

    Automate your customer support instantly with AI

    2023 · user.com · its alternatives →

16. 16
    ChatbotGPT▲123

    Custom ChatGPT agents with your own data

    2023 · chaindesk.ai · its alternatives →

17. 17
    Support ChatGPT Playground▲133

    Create your own support chat in a few clicks

    2023 · kodif.ai · its alternatives →

18. 18
    Pulsedesk▲191

    Launch operator-free support with AI

    2023 · pulsedesk.com · its alternatives →

19. 19
    ResolveAI▲107

    ChatGPT powered customer service chatbots

    2023 · resolveai.co · its alternatives →

20. 20
    Chatmate.so▲99

    Create a chatbot widget for your site in seconds

    2024 · chatmate.so · its alternatives →

21. 21
    Finetalk▲101

    Supercharge your customer support with AI 24*7

    2023 · its alternatives →

22. 22
    ChatbotGPT▲76

    Personalized support for users, entirely automated.

    2023 · bubble.io · its alternatives →

23. 23
    LiveChatAI▲154

    AI chatbot you can trust

    2024 · livechatai.com · its alternatives →

24. 24
    Suportal Beta▲101

    ChatGPT powered customer support for your website

    2023 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →