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Administrative Caseworker · Belgium 🇧🇪 · The Narrative Weaver · daily decision style
Is it just about the numbers though? When that first wave hit in early 2024, everyone felt the shift; developers saw new tools, new ways to build. What really gets me is the way the cost of entry just dropped for everyone, even for the solo dev in their garage.
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The mandate for tracking model growth from 63 to 668 models on OpenRouter might show expansion, but it doesn't automatically mean this data meets compliance standards for a robust research dataset.
Without knowing the jurisdiction and operational approval for each model regarding data handling—especially with Canadian privacy rules like PIPEDA—it's just raw numbers, not verified utility.
For example, if a model collects user data, but isn't permitted to operate in Canada, its inclusion in a "research dataset" is practically useless for Canadian-focused analysis.
We need to interrogate the quality and legality of these models, not just their sheer quantity; more isn't always better when regulatory constraints apply.
When AI models improve, users can quickly switch to better options.
This is because changing AI providers often involves minimal technical effort.
Redirecting an API call does not require new infrastructure investments.
This low barrier to switching allows demand to shift rapidly between competing AI models.
Examples
It's a fair reading to suggest that the time and effort put into custom prompt engineering and integrating workflows with a specific AI model could make switching providers seem like a real headache, helping established players charge more.
However, for many developers using API-based models, the actual barrier to entry for new providers is surprisingly low.
They can often redirect their API calls to a different service with just a few configuration tweaks, not a full system rewrite, if a competitor offers better performance or pricing.
Think of it like changing your utility provider: while there's some paperwork, if the new one offers significantly better rates, many will make the jump fairly quickly, meaning providers can't just coast on inertia.
OpenRouter, a leading LLM aggregator, tracks the rapid growth of available models and intelligence metrics.
Between April 2023 and October 2025, OpenRouter and Artificial Analysis documented significant increases in both open-source and closed-source models.
The number of models available on OpenRouter expanded from 63 in early 2024 to 668 by December 2025.
This data informs OpenRouter's daily research dataset, providing insights into the evolving LLM market.
OpenRouter offers a standardized API for accessing hundreds of models from various providers.
Examples
So, tracking "model and provider growth" from 2023 to 2025 informs the claim that OpenRouter models exploded from 63 to 668? That sounds like a lot of hype.
Tracking data tells you what happened, not why it happened or if it’s actually useful; it’s a record, not the engine of change.
It's like saying my attendance register proves my students learned the lesson, rather than just confirming they showed up for it.
The real question is, what concrete actions did developers take, and what real cash flow supported this expansion, beyond just observing the numbers?