I’ve been using the Go tier daily and pretty heavily for those past two weeks, and I honestly haven’t hit any limits so far. Whatever the cap is, it’s clearly set very high and very lenient.
By “heavily,” I mean around 8 hours of work use (roughly 200 messages on an average day), plus another 2–3 hours before bed where I go deep into whatever topic my brain decides to hyperfocus on. In that evening stretch alone I can send around 900 messages without issues. Even with that load, I’ve never once run into a “limit reached” block.
At this point, the value for $4 is almost suspiciously good. They might adjust the limits later as the tier matures, but right now, if you constantly hit the free tier caps, the upgrade is absolutely worth it and is probably the best value per buck you can find in current big player LLM landscape