The tracking of growth in AI models on OpenRouter, while useful for observation, isn't the direct causal input driving the expansion from 63 to 668 models; it's a second-order effect of a much larger system.
This overlooks the underlying feedback loop between developer innovation, market demand for diverse AI capabilities, and the platform's own incentives to host more models, creating a bottleneck if we confuse measurement with a driver.
For instance, simply tracking the number of available doctors on an online platform in Spain doesn't cause more doctors to join; it's the regulatory regime for healthcare professionals and the patient demand that truly expand the offerings.