There is. Specifically the pricing for open models from third party providers on OpenRouter since inference is a "commodity" at this point. Unless we think that Opus/GPT-5.6 are many times less efficient than GLM 5.2 or Kimi Openai and Anthropic are making money from inference.
> it's nowhere near enough to cover the bill
Obviously it does not cover R&D, marketing and other spending but nobody has ever claimed that here.