{
  "as_of": "2026-07-10T03:46:09+00:00",
  "beta_capabilities": [],
  "controls": [
    {
      "constraints": [],
      "control_id": "reasoning_effort",
      "default_value": null,
      "note": "Meta documents no fixed default. When this parameter is omitted, the model chooses a reasoning level. Muse Spark rejects none with HTTP 400. Responses API requests use reasoning.effort.",
      "provider_parameter": "reasoning_effort",
      "semantics": "Controls how much internal reasoning the model performs before visible output.",
      "sources": [
        "https://ai.developer.meta.com/docs/features/reasoning.md"
      ],
      "supported_values": {
        "kind": "enum",
        "values": [
          {
            "behavior": "Shortest reasoning pass.",
            "value": "minimal"
          },
          {
            "behavior": "Light reasoning.",
            "value": "low"
          },
          {
            "behavior": "Moderate depth.",
            "value": "medium"
          },
          {
            "behavior": "Deep reasoning.",
            "value": "high"
          },
          {
            "behavior": "Maximum reasoning depth.",
            "value": "xhigh"
          }
        ]
      },
      "value_type": "string"
    }
  ],
  "modalities": [
    "text",
    "image",
    "video",
    "pdf"
  ],
  "model_id": "muse-spark-1.1",
  "provider": "meta",
  "schema_version": "0.1.2",
  "sources": [
    "https://api.meta.ai/v1/models",
    "https://api.meta.ai/v1/models/muse-spark-1.1",
    "https://ai.developer.meta.com/docs/getting-started/overview.md",
    "https://ai.developer.meta.com/docs/getting-started/models.md",
    "https://ai.developer.meta.com/docs/api-reference/models/list-models.md",
    "https://ai.developer.meta.com/docs/api-reference/models/retrieve-model.md",
    "https://ai.developer.meta.com/docs/api-reference/models/schemas.md",
    "https://ai.developer.meta.com/docs/features/reasoning.md",
    "https://aistackregistry.com/provenance/docs/2026-07-10/manifest.json"
  ],
  "supported_generation_methods": [],
  "token_limits": {
    "context_window": 1048576,
    "max_output_tokens": 131072
  }
}