There are several alternatives to OpenAI’s GPT-3 based ChatGPT, including:

1. Google Dialogflow: Dialogflow is a conversational platform that allows businesses to build chatbots for websites and mobile apps. Dialogflow is free to use and provides an easy-to-use interface for building conversational experiences.
2. IBM Watson Assistant: IBM Watson Assistant is an AI-powered conversational platform that allows businesses to build and deploy conversational experiences across a variety of channels. Watson Assistant includes features such as natural language processing, machine learning, and analytics to help businesses understand and improve the customer experience.
3. Microsoft Bot Framework: The Microsoft Bot Framework is a platform that allows developers to build, test, and deploy conversational bots across a variety of channels, including Skype, Teams, and other popular messaging platforms. The framework includes features such as language understanding and dialog management to help developers create engaging and personalized conversational experiences. AI Changing the World: Impact and Future
4. Amazon Lex: Amazon Lex is a conversational platform that allows businesses to build, test, and deploy conversational bots for websites, mobile apps, and popular messaging platforms. Lex uses advanced natural language processing and machine learning to help businesses understand and respond to customer inquiries in real-time. Business Ideas for 2023
5. Tars: Tars is a conversational platform that allows businesses to build and deploy chatbots for websites and mobile apps. Tars includes features such as natural language processing, machine learning, and analytics to help businesses understand and improve the customer experience.
6. Rasa: Rasa is an open-source conversational AI platform that allows businesses to build and deploy custom conversational assistants and chatbots. Rasa offers a variety of tools for building conversational experiences, including natural language processing, dialogue management, and machine learning.
7. Botpress: Botpress is an open-source conversational platform that allows businesses to build, manage, and deploy chatbots for websites and messaging platforms. Botpress includes features such as natural language processing, conversation management, and analytics to help businesses understand and improve the customer experience.
8. WIT.ai: WIT.ai is a conversational platform that allows businesses to build and deploy chatbots for websites and messaging platforms. WIT.ai uses natural language processing and machine learning to help businesses understand customer inquiries and respond in real-time.
9. SnatchBot: SnatchBot is a cloud-based conversational platform that allows businesses to build and deploy chatbots for websites and messaging platforms. SnatchBot includes features such as natural language processing, machine learning, and analytics to help businesses understand and improve the customer experience. Free 30,000 Vector Design Templates Download
10. Motion.ai: Motion.ai is a conversational platform that allows businesses to build and deploy chatbots for websites, mobile apps, and messaging platforms. Motion.ai uses natural language processing and machine learning to help businesses understand and respond to customer inquiries in real-time.

These are some of the most popular alternatives to OpenAI’s GPT-3 based ChatGPT. Each platform has its own strengths and weaknesses, and the best choice will depend on the specific needs and requirements of the business.