> OpenRouter helps, but I don't really like it as a service and not a fan of the mark up.

You're right, I hate it when a business exists to make money. They should just provide their service for free. After all, anyone can build an OpenAI API compatible server that works with every major provider, and even build it using an LLM at that!

It's more just the value for money. It doesn't really offer me anything valuable other than billing consolidation - and the markup is excessive for that use case.

If I was using the routing features it would make more sense - but they charge significantly more for that so the markup is really just for billing consolidation.