{
  "config": {
    "input_seed": 42,
    "timed_runs": 10,
    "tolerance_abs": 0.00001,
    "tolerance_rel": 0.001,
    "warmup_runs": 3
  },
  "input_spec": "1x64:float32",
  "license": "Apache-2.0",
  "model_id": "example-web-a",
  "notes": "synthetic elementwise fixture (NEG+LOGISTIC); provenance example",
  "results": [
    {
      "backend": "wasm_xnnpack",
      "date": "2026-08-10",
      "delegation_evidence": [
        "error: WARNING: [npu_registry.cc:34] NPU accelerator could not be loaded and registered: kLiteRtStatusErrorInvalidArgument.",
        "error: WARNING: [npu_registry.cc:34] NPU accelerator could not be loaded and registered: kLiteRtStatusErrorInvalidArgument."
      ],
      "env": {
        "browser": "chromium",
        "browser_version": "151.0.7922.34",
        "headless": true,
        "jspi": true,
        "litertjs_core_version": "2.5.3",
        "machine_label": "example-dev-mac-arm64",
        "os": "macOS",
        "os_version": "27.0.0",
        "webgpu_adapter": {
          "architecture": "metal-3",
          "description": "",
          "device": "",
          "vendor": "apple"
        }
      },
      "error": null,
      "failure_class": null,
      "full_delegation": null,
      "latency_p50_ms": 0.032,
      "loads": true,
      "max_abs_diff": null,
      "max_rel_diff": null,
      "output_match": null,
      "provenance": "example",
      "runs": true
    },
    {
      "backend": "webgpu_mldrift",
      "date": "2026-08-10",
      "delegation_evidence": [
        "error: WARNING: [npu_registry.cc:34] NPU accelerator could not be loaded and registered: kLiteRtStatusErrorInvalidArgument.",
        "error: WARNING: [npu_registry.cc:34] NPU accelerator could not be loaded and registered: kLiteRtStatusErrorInvalidArgument."
      ],
      "env": {
        "browser": "chromium",
        "browser_version": "151.0.7922.34",
        "headless": true,
        "jspi": true,
        "litertjs_core_version": "2.5.3",
        "machine_label": "example-dev-mac-arm64",
        "os": "macOS",
        "os_version": "27.0.0",
        "webgpu_adapter": {
          "architecture": "metal-3",
          "description": "",
          "device": "",
          "vendor": "apple"
        }
      },
      "error": null,
      "failure_class": null,
      "full_delegation": true,
      "latency_p50_ms": 0.55,
      "loads": true,
      "max_abs_diff": 5.960464477539063e-8,
      "max_rel_diff": 1.3937262805208635e-7,
      "output_match": true,
      "provenance": "example",
      "runs": true
    }
  ],
  "schema_version": "1.0",
  "source": "model_web_a_example.tflite"
}