Open AI's ChatGPT and Google's Bard are very similar natural language AI chatbots, but they have some differences, and are designed to be used in slightly different ways

ChatGPT has been developed on GPT (Generative Pre-trained Transformer)

Google's Bard has been developed on LaMDA (Language Model for Dialogue Applications)

ChatGPT produces answers from its trained database from 2021 and before.

Google Apprentice Bard AI will be able to answer real-time questions

Chat GPT has built-in plagiarism tool called GPT-2 Output Detector

Google's Bard AI has no built-in plagiarism detection tool

ChatGPT is available in market with free and paid plans while Google's Bard still in beta test phase

As conclusion, Open AI's Chat GPT and Google's Bard will compete in AI universe for long time