The short answer
Squad is one product: a flat roster of teammates, running on the AI subscription you arrive with, for $99 a month. Rerun is the ecosystem around them. You split your workspace into Boxes, staff each one from a library of 120+ ready-made agents or have an expert build yours, run them on whichever model you like, and watch every run light up on a live board instead of reading a task list. All of it from $24 a month, Box, model credit and unlimited runs included. Pick Squad if you already pay for a large ChatGPT plan you want to use up and a single flat roster is all you need.