{
 "measured_at": "2026-10-23T18:47:13Z",
 "embedder": "fastembed:BAAI/bge-small-en-v1.5",
 "workload": {
  "requests": 250,
  "intents": 24,
  "distinct_questions": 57,
  "seed": 7,
  "zipf_s": 1.1,
  "provider": "offline (no model called; misses priced at the reference list price)",
  "cache_backend": "memory"
 },
 "reference_models": {
  "light": "claude-haiku-5-5",
  "heavy": "claude-opus-5-5"
 },
 "runs": [
  {
   "threshold": 0.96,
   "requests": 250,
   "hits": 199,
   "exact_hits": 172,
   "semantic_hits": 27,
   "misses": 51,
   "hit_rate": 0.796,
   "false_hits": 0,
   "blocked_by_guard": 1,
   "exact_lookup_ms": {
    "p50": 0.01,
    "p95": 0.02,
    "p99": 0.02
   },
   "semantic_lookup_ms": {
    "p50": 0.57,
    "p95": 7.99,
    "p99": 9.78
   },
   "hit_latency_ms": {
    "p50": 0.1,
    "p95": 0.7,
    "p99": 8.01
   },
   "miss_overhead_ms": {
    "p50": 16.58,
    "p95": 18.37,
    "p99": 19.27
   },
   "tokens": {
    "input": 40937,
    "output": 2316
   },
   "reference_cost_usd": "0.0052517000",
   "avoided_cost_usd": "0.0207845000",
   "cost_without_cache_usd": "0.0260362000",
   "cost_reduction": 0.7983,
   "tiers": {
    "light": 250
   },
   "backend": "memory"
  },
  {
   "threshold": 0.92,
   "requests": 250,
   "hits": 204,
   "exact_hits": 162,
   "semantic_hits": 42,
   "misses": 46,
   "hit_rate": 0.816,
   "false_hits": 0,
   "blocked_by_guard": 3,
   "exact_lookup_ms": {
    "p50": 0.01,
    "p95": 0.02,
    "p99": 0.03
   },
   "semantic_lookup_ms": {
    "p50": 0.64,
    "p95": 8.33,
    "p99": 8.55
   },
   "hit_latency_ms": {
    "p50": 0.12,
    "p95": 6.57,
    "p99": 8.49
   },
   "miss_overhead_ms": {
    "p50": 17.39,
    "p95": 20.24,
    "p99": 21.04
   },
   "tokens": {
    "input": 36999,
    "output": 2140
   },
   "reference_cost_usd": "0.0047699000",
   "avoided_cost_usd": "0.0212684000",
   "cost_without_cache_usd": "0.0260383000",
   "cost_reduction": 0.8168,
   "tiers": {
    "light": 250
   },
   "backend": "memory"
  },
  {
   "threshold": 0.88,
   "requests": 250,
   "hits": 215,
   "exact_hits": 130,
   "semantic_hits": 85,
   "misses": 35,
   "hit_rate": 0.86,
   "false_hits": 2,
   "blocked_by_guard": 21,
   "exact_lookup_ms": {
    "p50": 0.02,
    "p95": 0.03,
    "p99": 0.04
   },
   "semantic_lookup_ms": {
    "p50": 0.66,
    "p95": 9.76,
    "p99": 12.26
   },
   "hit_latency_ms": {
    "p50": 0.18,
    "p95": 8.62,
    "p99": 10.94
   },
   "miss_overhead_ms": {
    "p50": 18.66,
    "p95": 23.52,
    "p99": 25.39
   },
   "tokens": {
    "input": 28202,
    "output": 1548
   },
   "reference_cost_usd": "0.0035942000",
   "avoided_cost_usd": "0.0223303000",
   "cost_without_cache_usd": "0.0259245000",
   "cost_reduction": 0.8614,
   "tiers": {
    "light": 250
   },
   "backend": "memory"
  }
 ]
}
