Of course, some of this is because Facebook was wise enough to seed its SDK to developers months in advance. But it's also because the company laid out its groundwork for bots in Messenger as early as last year. In 2015, Facebook unveiled its Messenger for Businesses program, which would allow consumers like you and me to talk with businesses on Messenger. You could chat with Hyatt to ask for more towels in your room or with Sprint to find out why your network was slow. Of course, you'd be speaking to a customer-support agent rather than a bot, but it was a starting point. On top of that, Facebook has been working with partners like Uber, Lyft and KLM to try out an early version of a bot system where you could request a car or book a flight through Messenger.

"These [programs] really formed what is being built today," said Peter Martinazzi, a product manager for Messenger. "We did a really slow and deliberate approach over the past year, learning along the way." The Messenger for Businesses initiatives, he said, have been successful. "People have messaged businesses twice as much as they did before."

The result is a healthy roster of partners right when Messenger's bot platform launches. Big national brands like Bank of America and Burger King are already onboard while news outlets like CNN and The Wall Street Journal are already using the service to deliver headlines on the fly. Microsoft, on the other hand, only had a few Bing bots on Skype when it announced its platform. It seems that even though Microsoft announced its bot platform two weeks before Facebook did, the latter is already well ahead.

That's not to say that Microsoft didn't already have a few bot initiatives going: It's experimented with Tay, the infamous Twitter bot, and it has deployed several thousand bots on WeChat, a popular chat app in China, before having them pulled down. Indeed, Tay is actually a spin-off of Xiaoice, a bot that's been on WeChat, Weibo and Line (two other popular Asian chat apps) for a few years.

But none of that is useful if Microsoft doesn't get help from developers. Facebook, on the other hand, already has a healthy relationship with plenty of companies and brands, thanks to Pages and advertising initiatives. So it wasn't too much of a leap to get many of them onboard the Messenger bot plan, too. Companies already know that Facebook is where the money is. Developing bots for Messenger ahead of competitors like Skype is a no-brainer.