from together import Together
client = Together()

regions = client.beta.clusters.list_regions()
print(regions)

{
  "regions": [
    {
      "name": "<string>",
      "driver_versions": [
        {
          "cuda_version": "<string>",
          "nvidia_driver_version": "<string>"
        }
      ],
      "supported_instance_types": [
        "<string>"
      ]
    }
  ]
}