Are their TOS significantly more vague or restrictive than OpenAI or Anthropic’s?
In any case what matters is what is enforced in practice. It will be a mild inconvenience to switch providers on Openrouter.
If Anthropic or OpenAI decide to apply those same arbitrary terms, you are SOL.
> Are their TOS significantly more vague or restrictive than OpenAI or Anthropic’s?
Yeah, I've compared both. The US companies generally aren't as vague, and they don't claim ownership over inputs and outputs.