It's not really a 90% discount (I went into the rabbit hole) and none of the sites from this list are what people use (looks like some labs and random sites). I

It's not really a 90% discount (I went into the rabbit hole) and none of the sites from this list are what people use (looks like some labs and random sites). It's more closer to 30% specifically for Claude models, and it's constantly changing. It's also a discount relative to API prices. It would still be much more expensive than a Claude subscription, because that's what these providers are actually doing - pooling subscriptions.