For historical pricing data, you can find it in the git history of the catalog repository. The catalog repository automatically updates the price for hardware periodically for AWS and GCP. If you would like to have the update for Azure as well, you can contribute to the repository. The results shown in sky show-gpus command are also downloaded from the catalog repository, but they may not be up-to-date. To get the latest results, you can run the catalog fetching script yourself. To use the GitHub workflows, you will need your own AWS/GCP key to access the pricing information in those clouds.