There are companies which are only serving open weight models and not doing any training, so they must be profitable? Check for example this list https://openro

There are companies which are only serving open weight models and not doing any training, so they must be profitable? Check for example this list https://openrouter.ai/meta-llama/llama-3.3-70b-instruct/providers https://openrouter.ai/meta-llama/llama-3.3-70b-instruct/prov...