The rank is from the LMSYS Chatbot Arena Leaderboard. It has over 1,000,000 human pairwise comparisons to rank LLMs with the Bradley-Terry model and display the model ratings in Elo-scale. You can find more details in their paper.
Better value models are found in the top-left (high rank and low cost).
I sourced the prices from the websites of the companies who made them and host them. There are other companies that host the models, and I may list them in an update.
You can find the prices here:
There are a few reasons a model might not show up:
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