Sundar Pichai has revealed whether he thinks Google's new AI chatbot is safe.<br /><br />Bard is an "experimental conversational AI service powered by LaMDA" that can be used to simplify complex topics, such as "explaining new discoveries from Nasa's James Webb Space Telescope to a 9-year-old", the technology company says on its website.<br /><br />Speaking to 60 Minutes, the Google and Alphabet CEO said: "The way we have launched it today, as an experiment in a limited way, I think [it is safe]. But we all have to be responsible in each step along the way."