> This is, plain and simple, a tie-in sale of claude code. I am particularly amused by people accepting it as "fair" because in Brazil this is an illegal practice

I am very curious what is particularly illegal about this. On the sales page nowhere do they actually talk about the API https://claude.com/pricing

Now we all know obviously the API is being used because that is how things work, but you are not actually paying a subscription for the API. You are paying for access to Claude Code.

Is it also illegal that if you pay for Playstation Plus that you can't play those games on an Xbox?

Is it illegal that you can't use third party netflix apps?

I really don't want to defend and AI company here but this is perfectly normal. In no other situation would we expect access to the API, the only reason this is considered different is because they also have a different service that gives access to the API. But that is irrelevant.

I've heard they actually cache the full Claude Code system prompt on their servers and this saves them a lot of money. Maybe they cache the MCP tools you use and other things. If another harness like Opencode changes that prompt or adds significantly to it, that could increase costs for them.

What I don't understand is why start this game of cat and mouse? Just look at Youtube and YT-DLP. YT-DLP, and the dozens of apps that use it, basically use Youtube's unofficial web API and it still works even after Youtube constantly patches their end. Though now, YT-DLP has to use a makeshift JS interpreter and maybe even spawn Chromium down the line.

While the cost may not be lower the price certainly can be if they are operating like any normal company and adding margin.

> Their costs are not magically lower when you use claude code vs when you use a third-party client.

If subsidizing that offering is a good hook to get higher paying API users on board, then some of that cost is a customer aquisition cost, whereas the cost to them of providing the API doesn't have the same proportion that they can justify as a customer acquisition cost.

> Except they can't. Their costs are not magically lower when you use claude code vs when you use a third-party client.

I don't have a dog in this fight but is this actually true? If you're using Claude Code they can know that whatever client-side model selection they put into it is active. So if they can get away with routing 80% of the requests to Haiku and only route to Opus for the requests that really need it, that does give them a cost model where they can rely on lower costs than if a third-party client just routes to Opus for everything. Even if they aren't doing that sort of thing now, it would be understandable if they wanted to.