An Alphabet Inc. AI researcher GOOGL, +2.81% GOOG, +2.65% Google's Bard chatbot used OpenAI's ChatGPT, which powers Microsoft Corp.'s MSFT, +1.50% Bing Chat search functionality.

After finding Google used ShareGPT data "heavily," researcher Jacob Devlin joined OpenAI, according to The Information.

“Bard is not trained on any data from ShareGPT or ChatGPT,” a Google official told MarketWatch.

Google AI offers machine learning, computer vision, natural language processing, and more.

Google AI is a general name for Google's artificial intelligence activities, whereas ChatGPT is OpenAI's AI language model.

ChatGPT, on the other hand, generates natural language answers like humans.

Google AI is developed by a large team of researchers and engineers within Google, whereas ChatGPT is developed by OpenAI, an independent research organization focused on safe and usable AI progress.

Google AI powers Google search, Maps, and Assistant, while ChatGPT powers chatbots, customer care, and language translation.

Lastly, ChatGPT employs a transformer-based neural network for language modeling, whereas Google AI uses deep learning, reinforcement learning, and unsupervised learning.