{
  "model_name": "ESS-AIST-81M",
  "base_family": "AIST-86M-compatible",
  "output_dimension": 1536,
  "slices": {
    "semantic": [
      0,
      512
    ],
    "subject": [
      512,
      1024
    ],
    "event": [
      1024,
      1536
    ]
  },
  "prefixes": {
    "semantic_prefix": 512,
    "semantic_subject_prefix": 1024,
    "full_prefix": 1536
  },
  "normalized_views": {
    "semantic_key": "l2norm(z[0:512])",
    "subject_key": "l2norm(z[512:1024])",
    "event_key": "l2norm(z[1024:1536])",
    "full_key": "l2norm(z[0:1536])"
  },
  "supported_modalities": [
    "text",
    "image",
    "audio"
  ],
  "normalization_behavior": {
    "raw_embedding": "un-normalized 1536d vector",
    "recommended_runtime": "L2-normalize per-slice or full vector depending on task"
  },
  "matryoshka_behavior": {
    "512": "semantic retrieval",
    "1024": "semantic plus subject continuity",
    "1536": "semantic plus subject plus event continuity"
  },
  "optional_probes": [
    "salience_score",
    "novelty_score",
    "boundary_score"
  ]
}