what revenues? If by big AI companies you mean llm service providers (OpenAI, ...), their revenues are far from high or profitable.
https://www.cnbc.com/2024/09/27/openai-sees-5-billion-loss-t...Maybe Nvidia, but they are a chip / hardware maker first. And even for them 50B training run with no exponential gains seems unreasonable.
Better to optimize the architecture / approach first, which also is what most companies are doing now before scaling out.
