{
  "as_of": "2026-04-15T03:14:05+00:00",
  "format_version": "0.2.0",
  "lookup": {
    "index": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/index.json",
    "models_index": "https://aistackregistry.com/snapshots/2026-04-15/models/index.json",
    "navigation": {
      "dereference_only": true,
      "rule": "Use model URLs from this payload; do not infer artifact paths."
    },
    "providers_index": "https://aistackregistry.com/snapshots/2026-04-15/models/providers/index.json",
    "uri_templates": {
      "defaults": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/{model_id}/recommended_defaults.json",
      "model_bundle": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/{model_id}/model.json",
      "spec": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/{model_id}/spec.json"
    }
  },
  "model_ids": [
    "grok-4-1-fast-non-reasoning",
    "grok-4-1-fast-reasoning"
  ],
  "models": [
    {
      "defaults": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-non-reasoning/recommended_defaults.json",
      "docs": {
        "api_reference_url": "https://docs.x.ai/developers/rest-api-reference/inference/models",
        "model_docs_url": "https://docs.x.ai/developers/models/grok-4-1-fast-non-reasoning",
        "models_get_docs_url": "https://docs.x.ai/developers/rest-api-reference/inference/models#get-model",
        "models_list_docs_url": "https://docs.x.ai/developers/rest-api-reference/inference/models#list-models",
        "models_overview_url": "https://docs.x.ai/developers/models"
      },
      "model": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-non-reasoning/model.json",
      "model_id": "grok-4-1-fast-non-reasoning",
      "spec": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-non-reasoning/spec.json"
    },
    {
      "defaults": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-reasoning/recommended_defaults.json",
      "docs": {
        "api_reference_url": "https://docs.x.ai/developers/rest-api-reference/inference/models",
        "model_docs_url": "https://docs.x.ai/developers/models/grok-4-1-fast-reasoning",
        "models_get_docs_url": "https://docs.x.ai/developers/rest-api-reference/inference/models#get-model",
        "models_list_docs_url": "https://docs.x.ai/developers/rest-api-reference/inference/models#list-models",
        "models_overview_url": "https://docs.x.ai/developers/models"
      },
      "model": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-reasoning/model.json",
      "model_id": "grok-4-1-fast-reasoning",
      "spec": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-reasoning/spec.json"
    }
  ],
  "models_by_id": {
    "grok-4-1-fast-non-reasoning": {
      "defaults": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-non-reasoning/recommended_defaults.json",
      "docs": {
        "api_reference_url": "https://docs.x.ai/developers/rest-api-reference/inference/models",
        "model_docs_url": "https://docs.x.ai/developers/models/grok-4-1-fast-non-reasoning",
        "models_get_docs_url": "https://docs.x.ai/developers/rest-api-reference/inference/models#get-model",
        "models_list_docs_url": "https://docs.x.ai/developers/rest-api-reference/inference/models#list-models",
        "models_overview_url": "https://docs.x.ai/developers/models"
      },
      "model": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-non-reasoning/model.json",
      "spec": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-non-reasoning/spec.json"
    },
    "grok-4-1-fast-reasoning": {
      "defaults": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-reasoning/recommended_defaults.json",
      "docs": {
        "api_reference_url": "https://docs.x.ai/developers/rest-api-reference/inference/models",
        "model_docs_url": "https://docs.x.ai/developers/models/grok-4-1-fast-reasoning",
        "models_get_docs_url": "https://docs.x.ai/developers/rest-api-reference/inference/models#get-model",
        "models_list_docs_url": "https://docs.x.ai/developers/rest-api-reference/inference/models#list-models",
        "models_overview_url": "https://docs.x.ai/developers/models"
      },
      "model": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-reasoning/model.json",
      "spec": "https://aistackregistry.com/snapshots/2026-04-15/models/xai/grok-4-1-fast-reasoning/spec.json"
    }
  },
  "provider": "xai"
}