Do other ships have the new AIR fuel system, or is the Origin 100 the first?

Technically, it's the first to have the AIR system, but it's not the concept of... again, this is sort of explained better and in more detail in the design piece that's going up later. It's exclusive to the 100 series, but it's not the only instance of that technology in the universe. Other ships have their own version of it. Starfarers, naturally, have the ability to scoop fuel and process it similar to the AIR system. It's just on two wildly different ends of the spectrum.