OpenAI doesnt have a single model in top 10 models being used on openrouter.ai
Thats a weekly metric on https://openrouter.ai/rankings flagship chatgpt 5.2 model is at #16
PMF is now evolving when competitor models are either smarter or cheaper.
The number of tokens seen per model on OpenRouter is not a good measure of quality.
There are so many plausible explanations for why a particular model is or is not ranked in the top 10 by this metric.
Maybe people using OpenAI models are so happy that they don't care about other models and have no need for OpenRouter. Maybe OpenAI models produce fewer tokens, or are more expensive per token.
Your conclusion might be correct, but citing the number of tokens seen by OpenRouter is not very strong evidence.
OpenAI, frankly, benefits from the "nobody ever got fired for buying IBM" phenomenon.
And there's a reason that OpenRouter has an OpenAI compatible layer highlighted not deep in docs, but on their Quickstart page: https://openrouter.ai/docs/quickstart#using-the-openai-sdk
The number of projects accessing OpenAI directly, who might only reach for OpenRouter once an alternative is desired, is unknowable (since OpenAI doesn't share usage statistics), but likely meaningful.
Could also just be a bias in the audience
I hadn't heard of openrouter.ai. I have heard of OpenAI.
Is this like Windows and MacOS not being in the top 10 of distrowatch.com?