curl --request GET \
  --url https://api.arize.com/v2/evaluator-versions/{version_id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "RXZhbHVhdG9yVmVyc2lvbjoxMDpYeVp3",
  "evaluator_id": "RXZhbHVhdG9yOjEyOmFCY0Q=",
  "commit_hash": "a3b1c9e4f7d2a0518e6c3bb9217f87d1c4e810f2",
  "commit_message": "Initial version",
  "template_config": {
    "name": "hallucination",
    "template": "You are an evaluation assistant...",
    "include_explanations": true,
    "use_function_calling_if_available": true,
    "classification_choices": {
      "hallucinated": 0,
      "factual": 1
    },
    "direction": "maximize",
    "data_granularity": "span",
    "llm_config": {
      "ai_integration_id": "TGxtSW50ZWdyYXRpb246MTI6YUJjRA==",
      "model_name": "gpt-4o",
      "invocation_parameters": {
        "temperature": 0
      },
      "provider_parameters": {}
    }
  },
  "created_at": "2026-02-16T22:05:48.143Z",
  "created_by_user_id": "VXNlcjoxOm5OYkM="
}