{
  "schema": "rxlabs.echo2-benchmark.v1",
  "release": "ECHO-2",
  "status": "closed",
  "date": "2026-09-09",
  "benchmarkKind": "causal acceptance benches with frozen held-out exams",
  "sources": [
    {
      "file": "echoai/lab/echo2_report.json",
      "sha256": "40608247770d373d8552b1bff7cffff1d261b48b408ed32374cabcb8740389de"
    },
    {
      "file": "echoai/lab/echo2_pattern1_report.json",
      "sha256": "15973815a3267b08c7284a7789accfc0069fa6dca19cbb28d363d2110302e029"
    },
    {
      "file": "echoai/lab/echo2_shifts_report.json",
      "sha256": "510371644ebb25a61001f3656fd94c8d131dfa806e84a3c88502372008d1cce4"
    },
    {
      "file": "echoai/lab/echo2_stream1_report.json",
      "sha256": "1449356bcfd2e11573ff912a1bdefc43a263138d6f42f6d5e68ccc37c10413bc"
    },
    {
      "file": "echoai/lab/echo2_sleep2_report.json",
      "sha256": "4427db7db758ae6560b0ac778723b33e4461223a543fa45c6329f11e85ee6005"
    },
    {
      "file": "echoai/lab/echo2_gen1f_report.json",
      "sha256": "a6e85ea88e1d0e0762a927b3300df7189870a38cf9ff1b9b0846ada47d9b54e2"
    },
    {
      "file": "echoai/lab/echo2_heat1b_report.json",
      "sha256": "cdfe49f5d192c9a792f02fd28dc8f1d24a2e0c124f13b20e03be28ddfe669570"
    },
    {
      "file": "echoai/lab/echo2_capacity1_report.json",
      "sha256": "8250125545eda65d1b2c1a33071b5a0472bcbc70f8e45fd1f2506390153b5464"
    }
  ],
  "video": {
    "file": "public/media/echoai/echo2-neural-viz-demo.mp4",
    "sha256": "4cf8116009a787d45a3bfe6e34084ba986538d3045408b9dc386e1a95354d73d",
    "durationSeconds": 123.466667,
    "width": 1280,
    "height": 720,
    "videoCodec": "H.264",
    "audioCodec": "AAC"
  },
  "comparison": {
    "note": "Capacity comparisons were run inside CAPACITY-1; 256 LIF is the ECHO-1-size baseline, not a retroactive ECHO-1 release score.",
    "perception": {
      "echo1SizeBaseline": {
        "neurons": 256,
        "hits": 829,
        "total": 2048
      },
      "echo2": {
        "neurons": 512,
        "hits": 2048,
        "total": 2048
      }
    },
    "temporal": {
      "staticControl": {
        "neurons": 640,
        "hits": 0,
        "total": 256
      },
      "echo2": {
        "lif": 512,
        "adaptiveLif": 128,
        "hits": 256,
        "total": 256
      }
    },
    "streamScale": {
      "note": "Different workloads; this comparison shows exercised sequence scale only.",
      "echo1Turns": 352,
      "echo2Frames": 4608
    }
  },
  "survival": {
    "seeds": [
      {
        "seed": 17,
        "retainedMedian": 28,
        "resetMedian": 16
      },
      {
        "seed": 101,
        "retainedMedian": 40,
        "resetMedian": 16
      },
      {
        "seed": 20260903,
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        "resetMedian": 16
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    ],
    "inertRetainedMedian": 16,
    "inertResetMedian": 16
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  "pattern": {
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    "trainSamples": 144,
    "heldOutHits": 32,
    "heldOutTotal": 32,
    "exactBaselineHits": 0,
    "families": 4,
    "objectIdUsed": false
  },
  "shift": {
    "seeds": [
      {
        "seed": 17,
        "gainVsFrozen": 421,
        "gainVsScratch": -99
      },
      {
        "seed": 101,
        "gainVsFrozen": 416,
        "gainVsScratch": -53
      },
      {
        "seed": 20260903,
        "gainVsFrozen": 446,
        "gainVsScratch": -27
      }
    ]
  },
  "stream": {
    "frames": 4608,
    "chunks": 48,
    "coherentKnown": 4512,
    "coherentHits": 4512,
    "dynamicAlias": 0
  },
  "sleep": {
    "sourceRows": 8208,
    "rules": 144,
    "heldOutHits": 720,
    "heldOutTotal": 720,
    "tBaselineHits": 0,
    "sourceUnchanged": true
  },
  "inheritance": {
    "evidenceBudget": 8,
    "inheritedLateErrors": 360,
    "naiveLateErrors": 602,
    "strictWins": 52,
    "strictLosses": 24,
    "ties": 52,
    "reached": 126
  },
  "heat": {
    "jointTurns": 20786,
    "temperatureBlindTurns": 7221,
    "noQTurns": 7186,
    "resetTurns": 5293,
    "loadCoolExam": {
      "hits": 12,
      "total": 12
    }
  },
  "capacity": {
    "lif": 512,
    "adaptiveLif": 128,
    "perceptionHits": 2048,
    "perceptionTotal": 2048,
    "temporalHits": 256,
    "temporalTotal": 256,
    "selectedMemoryTicks": 8,
    "selectedAdaptGain": 4
  },
  "integrity": {
    "wspBytes": 16,
    "falseFacts": 0,
    "destroyed": 0,
    "cortexCallsInCapacityBench": 0
  }
}