which-llm
Artificial Analysis needs to step up their game.
Artificial Analysis has a ton of data on language models. which-llm makes that data available to an agent, so I can ask about the models, compare them, and make charts like this one:

It combines the benchmarks with OpenRouter prices, context windows, supported inputs, and the model names you pass to the API. You can ask for a fast model that can read images, compare a few specific models, or see how much intelligence you're giving up to spend less.
The data refreshes daily, enjoy.