Here are some of the key differences between Bard and ChatGPT:

Data source: Bard continually draws information from the internet, so it has the latest information. 

ChatGPT's sources end with 2021 data, so it is limited on newer research and information.

Large language model (LLM):

Bard is based on Google's PaLM 2 LLM, while ChatGPT is based on OpenAI's GPT-3.5 and GPT-4 LLMs. 

PaLM 2 is a newer and more powerful LLM than GPT-3.5 and GPT-4, so Bard has a larger vocabulary and can generate more complex and nuanced text.

Capabilities: Bard is capable of a wider range of tasks than ChatGPT, including research, writing, and answering questions in an informative way. 

ChatGPT is better at generating human-like text, but it is not as good at understanding and responding to complex questions.

It is difficult to say definitively which AI emulates the thinking process of the human brain the most. 

Both Bard and ChatGPT are capable of learning and adapting to new information, but they do so in different ways. 

Bard is more focused on understanding the meaning of information, while ChatGPT is more focused on generating text that is similar to human language.

The main competition for Bard and ChatGPT is other large language models, such as;

Jurassic-1 Jumbo and Megatron-Turing NLG. 

These models are also trained on massive datasets of text and code, and they are capable of a wide range of tasks. 

However, Bard and ChatGPT have some advantages over these other models, such as their ability to access and process real-time information from the internet.

Overall, both Bard and ChatGPT are powerful AI models that are capable of a wide range of tasks. The best model for a particular task will depend on the specific requirements of that task.