I see. So, it's just a slide-ware bullet point right now? It would be helpful to really emphasize a word like "planned" in that bullet. It might have been lifted from some future-sounding/plan-oriented list and now the material makes it seem like it's actually available.
The nightly release of the Carbon compiler can be used via https://carbon.compiler-explorer.com/ . Note that it is definitely a work in progress, it hasn't even reached our v0.1 goals yet, but a good chunk of important functionality is working.