It has the power of Google's Knowledge Graph, which understands many thousands of "entities" and how they relate to each other.So you can ask more complicated questions that couldn't be resolved just by crawling the web.At this point, you're probably a little creeped out, so let me tell you what the privacy rules are with Allo.
Google recognized it was a graduation photo and then went a step beyond just guessing what it was, it guessed at appropriate responses.
"It's really liberating to start from scratch sometimes," says Erik Kay, director of engineering, communications products. Its interface is clean and easy to understand, with some clever little innovations on what you've seen in other chat apps like Whats App or Messenger. You sign up with your phone number and you can connect your Google account to it, though there's no need to.
You can see the usual chat app stuff: there are sent and received indicators, emoji, and a big set of custom stickers.
Kay told us that his suggestions were the text-version of smileys because he prefers to use those over actual emoji.
When you "invoke" @google in a chat either by hitting one of those suggestion chips or just typing @google, both you and everybody you're chatting with can see and respond to the answers.