Bard accepts URLs, which is a nice feature compared to chatGPT. Example described here: https://news.ycombinator.com/item?id=35250641 When I asked it about a different URL, it seemed to reference an older version of the page, and couldn't answer a question about the text content. chatGPT correctly answered the same question when I pasted the text. I tried pasting the same text in Bard, and Bard still couldn't answer.…
ChatGPT accepts URLs as well, I just did this week. I asked it to summarize new features from a technology website which its model had out of date knowledge, and it made me a diff of new things available. I also asked it to be a critic Go code from a pull request that I provided it the URL.
I just provided ChatGPT with a link to your comment and it claimed it was a "a link to an article on TechCrunch about a startup called Tava Health." I gave Bard the same link and it claimed it was a page about a tool called "TLDR This."[1]
[1] https://i.imgur.com/FRVuSQy.jpg
edit: After playing with it some more, it's evident that Bard can perform web searches and likely access cached content like Bing Chat.