{
  "calculator": "fallback-chain-simulator",
  "title": "Fallback Chain Simulator",
  "site": "AI Fin Hub",
  "input": {},
  "defaults_used": {
    "deadline_ms": 3000,
    "fallback1_model_id": "gpt-5-4-mini",
    "fallback1_p99_latency_ms": 3000,
    "fallback1_provider_id": "openai",
    "fallback1_rate_429": 0.05,
    "fallback2_enabled": true,
    "fallback2_model_id": "gemini-3-8-flash",
    "fallback2_p99_latency_ms": 2500,
    "fallback2_provider_id": "google",
    "fallback2_rate_429": 0.03,
    "input_tokens": 4000,
    "output_tokens": 500,
    "primary_model_id": "claude-sonnet-5-5",
    "primary_p99_latency_ms": 3500,
    "primary_provider_id": "anthropic",
    "primary_rate_429": 0.08,
    "seed": 1,
    "trials": 1000
  },
  "result": {
    "trials": 1000,
    "successes": 977,
    "successRate": 0.977,
    "p50Ms": 810.7932899617905,
    "p95Ms": 2186.2463920340883,
    "p99Ms": 3000,
    "totalCostUsd": 12.309124999999932,
    "avgCostUsd": 0.012309124999999933,
    "degradedToFallback1": 85,
    "degradedToFallback2": 3,
    "perProviderCalls": {
      "anthropic:claude-sonnet-5-5": 889,
      "openai:gpt-5-4-mini": 85,
      "google:gemini-3-8-flash": 3
    },
    "perProviderLabel": {
      "anthropic:claude-sonnet-5-5": "Claude Sonnet 5.5",
      "openai:gpt-5-4-mini": "GPT-5.4 Mini",
      "google:gemini-3-8-flash": "Gemini 3.8 Flash"
    },
    "perProviderShare": {
      "anthropic:claude-sonnet-5-5": 0.90992835209826,
      "openai:gpt-5-4-mini": 0.08700102354145343,
      "google:gemini-3-8-flash": 0.0030706243602865915
    },
    "legKeys": [
      "anthropic:claude-sonnet-5-5",
      "openai:gpt-5-4-mini",
      "google:gemini-3-8-flash"
    ],
    "recommendation": "On cost per successful call alone, Gemini 3.8 Flash beats the current primary ($0.0144 → $0.0050). Swap only if its output quality is acceptable for the task; quality is not modeled."
  },
  "provenance": {
    "run": "https://aifinhub.io/api/run/fallback-chain-simulator",
    "page": "https://aifinhub.io/fallback-chain-simulator/",
    "methodology": "https://aifinhub.io/methodology/fallback-chain-simulator/",
    "contract": "https://aifinhub.io/contracts/fallback-chain-simulator.json",
    "engine": "https://aifinhub.io/engines/fallback-chain-simulator.js",
    "engine_sha256": "21b07c4d833dfbee312a1da74dfb8d09558022bd8f8d4f105523c3a5a422afbd",
    "build": "9e8a56a16bda662ba90601b49561a2b176e9c379",
    "prices_verified": "2026-10-24",
    "prices_source": "https://aidevhub.io/api/models.json"
  },
  "disclaimer": "Planning estimates only — not financial, tax, or investment advice.",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "cite": "AI Fin Hub, Fallback Chain Simulator (engine 21b07c4d833d), https://aifinhub.io/api/run/fallback-chain-simulator"
}