Conditional pricing is more and more common (long context pricing, fast mode, etc.) across modern AI providers. This registry provides data for these pricing adjustments.

There're many similar but different implementations of AI API. For example, some providers support the `store` field in Open Responses AI format, but some don't. This is very annoying for AI App developers. So this registry also provides data for this.

Also, apart from the json data available for programming use, there's also a friendly interface for humans. This UI also supports showing which suppliers have the same model, and it can identify (guess) some models with similar but different names (for example, `gpt-5.4` might be called `openai/gpt-5.4`).