Comment by mbreese

But, Openrouter stats can only measure the usage they see. I'm not sure it is really all that representative of total LLM usage across the market.

I think that's the difference here -- OpenAI and Anthropic are competing more with each other (and Google Gemini) than they are with open weight models. While people on HN are familiar with Kimi and GLM models, I'm not sure how many casual users of LLMs know about them. I think the competitive risk open weight models pose to OpenAI and Anthropic is much further in the future.

There is a lot of usage that's only known by Anthropic or OpenAI that's not visible to the rest of the world.