{
  "schema_version": 1,
  "experiment": "multimodel_cache_policy",
  "created_at": "2026-10-02T17:42:29.229570+00:00",
  "models": [
    {
      "label": "Jev",
      "id": "typesafe/jev-1.13",
      "provider": "TypeSafe",
      "provider_name": "TypeSafe",
      "prices": {
        "prompt": "0.0000002",
        "completion": "0.00000075"
      },
      "reasoning": null,
      "cache_control": "unsupported",
      "max_tokens": null,
      "reasoning_mandatory": false,
      "protocol_difference": null
    },
    {
      "label": "Luna",
      "id": "openai/gpt-6-luna",
      "provider": "OpenAI",
      "provider_name": "OpenAI",
      "prices": {
        "prompt": "0.0000001",
        "completion": "0.0000005",
        "web_search": "0.01",
        "input_cache_read": "0.00000001",
        "input_cache_write": "0.000000125",
        "overrides": [
          {
            "min_prompt_tokens": 272000,
            "prompt": "0.0000002",
            "completion": "0.00000075",
            "input_cache_read": "0.00000002",
            "input_cache_write": "0.00000025"
          }
        ]
      },
      "reasoning": {
        "effort": "none"
      },
      "cache_control": "explicit",
      "max_tokens": 128,
      "reasoning_mandatory": false,
      "protocol_difference": null
    },
    {
      "label": "Qwen3.8 Flash",
      "id": "qwen/qwen3.8-flash",
      "provider": "alibaba",
      "provider_name": "Alibaba",
      "prices": {
        "prompt": "0.00000015",
        "completion": "0.00000047",
        "input_cache_read": "0.000000016",
        "input_cache_write": "0.0000002"
      },
      "reasoning": {
        "effort": "none"
      },
      "cache_control": "unsupported",
      "max_tokens": 128,
      "reasoning_mandatory": false,
      "protocol_difference": null
    },
    {
      "label": "DeepSeek V4.1 Flash",
      "id": "deepseek/deepseek-v4.1-flash",
      "provider": "deepinfra/fp8",
      "provider_name": "DeepInfra",
      "prices": {
        "prompt": "0.00000014",
        "completion": "0.00000042",
        "input_cache_read": "0.0000000042",
        "discount": 0.3
      },
      "reasoning": {
        "effort": "none"
      },
      "cache_control": "unsupported",
      "max_tokens": 128,
      "reasoning_mandatory": false,
      "protocol_difference": null,
      "cache_reason": "No verified matched OpenRouter cache-enable/cache-disable treatment for this provider in this study."
    },
    {
      "label": "MiMo V2.6 Flash",
      "id": "xiaomi/mimo-v2.6-flash",
      "provider": "xiaomi/fp8",
      "provider_name": "Xiaomi",
      "prices": {
        "prompt": "0.00000014",
        "completion": "0.00000028",
        "input_cache_read": "0.0000000028",
        "discount": 0
      },
      "reasoning": {
        "effort": "none"
      },
      "cache_control": "unsupported",
      "max_tokens": 128,
      "reasoning_mandatory": false,
      "protocol_difference": null,
      "cache_reason": "No verified matched OpenRouter cache-enable/cache-disable treatment for this provider in this study."
    },
    {
      "label": "Hy4 Preview",
      "id": "tencent/hy4-preview",
      "provider": "tencent/fp8",
      "provider_name": "Tencent",
      "prices": {
        "prompt": "0.000000834",
        "completion": "0.000002501",
        "input_cache_read": "0.000000042",
        "discount": 0,
        "overrides": [
          {
            "utc_start": 0,
            "utc_end": 1600,
            "prompt": "0.000000834",
            "completion": "0.000002501",
            "input_cache_read": "0.000000042"
          },
          {
            "utc_start": 1600,
            "utc_end": 0,
            "prompt": "0.0000007506",
            "completion": "0.0000022509",
            "input_cache_read": "0.0000000378"
          }
        ]
      },
      "reasoning": {
        "effort": "none"
      },
      "cache_control": "unsupported",
      "max_tokens": 128,
      "reasoning_mandatory": false,
      "protocol_difference": null,
      "cache_reason": "No verified matched OpenRouter cache-enable/cache-disable treatment for this provider in this study."
    }
  ],
  "seed": 20261002,
  "blocks": 4,
  "cases": 96,
  "counterfactual_pairs": 48,
  "calls_planned": 676,
  "source_hashes": {
    "cases_sha256": "73e400bef4a7025d31ab77523f6dcafe9ae46ee2100c1b8e7d4bd444d3a88e0c",
    "rulebook_sha256": "01006795edc5f9ee13a1e4efc56fc8e19516d74f40cddbce2e72d19b00f0d43b",
    "prime_source_responses_sha256": "a837d11e4ad92e01c258a5d5e1defe82f6b64b7e4440ec6f383defc30d650e3f"
  },
  "source_dir": "benchmark/expanded/runs/cache-20261002T095722Z",
  "protocol_sha256": "65276cccf0f45553045ef30da85c1bb2d7c98046264ac01696a2c58e23cb3374",
  "plan_sha256": "8356d29841cab994b3ca934229fb712b38f66d74db8a082038ea9efdc82b3c46",
  "automatic_retries": 0,
  "unknown_bill_allowance_usd": 0.01,
  "protocol": "Four sequential blocks. Fresh shared prefix nonce per block; one separate prime per controlled model per block. Frozen case order and all-model arm order randomized within each block. One serial injected adapter session. Unsupported cache models receive one baseline arm only.",
  "resume_policy": "Complete-block boundaries only; no repeated attempts.",
  "billing_guard": "Reserve max(adapter conservative estimate, $0.01) before each call. Known charges count at actual recorded values; each missing bill uses a $0.01 guard allowance while its reported price remains null. This local guard is not a remote account spending limit.",
  "status": "aborted",
  "budget_usd": 1.5,
  "calls_completed": 55,
  "charged_usd": null,
  "known_charge_subtotal_usd": 0.0125614895,
  "cost_missing_n": 18,
  "unknown_bill_allowance_total_usd": 0.18,
  "budget_accounted_usd": 0.1925614895,
  "completed_blocks": [],
  "finished_at": "2026-10-02T17:47:04.490714+00:00",
  "calls_dispatched": 55,
  "unresolved_dispatch_n": 0,
  "lost_outcome_n": 1,
  "error": "Cache construction generated 66-character Luna keys; upstream maximum is 64. Entire session excluded from primary cache inference and retained as supplementary setup evidence.",
  "primary_analysis_eligible": false
}