Your link says around 57 tons for a "typical" payload launched by the ESA using an Ariane 6 rocket and <15 tons for a payload that launches from a reusable platform. The parent article says these are launching using SpaceX rockets, which are reusable, so presumably their footprint is lower than an ESA satellite. They're also extremely small satellites and not exactly typical payloads. Possibly they can even fit multiple satellites on a single launch.
