{
 "schema": "usta.ai-cost-index.v1",
 "blogId": "D0418",
 "slug": "ai-model-pricing-trends-august-2026",
 "title": "275 Matched AI Listings Rose 4.4% on Input Price",
 "template": "R3T_AI_PRICE_CHANGE",
 "editionId": "2026-08",
 "sealedAt": "2026-08-10T15:31:41Z",
 "source": "US Tech Automations Research",
 "source_scope": "OpenRouter public model listing only",
 "source_url": "https://openrouter.ai/api/v1/models",
 "methodology": "https://ustechautomations.com/resources/research",
 "methodology_version": "openrouter-matched-listing-price-index-v1",
 "methodology_sha256": "05608da79469294c956c3ce5de1d05cbdb9893501405960b44efa40dd863101a",
 "canonicalUrl": "https://ustechautomations.com/resources/blog/ai-model-pricing-trends-august-2026",
 "summary": {
  "first_date": "2026-06-11",
  "last_date": "2026-08-10",
  "elapsed_days": 60,
  "sealed_dates": 56,
  "sealed_model_rows": 19360,
  "distinct_model_ids": 449,
  "stable_cohort_models": 275,
  "models_with_any_pricing_json_change_across_consecutive_observations": 169,
  "models_with_any_pricing_json_change_across_adjacent_seals": 168,
  "full_pricing_json_change_events_across_adjacent_seals": 435,
  "fixed_primary_reprice_events": 309,
  "models_with_fixed_primary_reprices": 88,
  "primary_price_state_transition_events": 2,
  "auxiliary_only_change_events": 124,
  "nonadjacent_observation_changes_excluded": 1,
  "unlinked_stored_rows_excluded": 2,
  "catalog_appearances": 139,
  "catalog_disappearances": 78,
  "prompt_direction_counts": {
   "increases": 134,
   "decreases": 150
  },
  "completion_direction_counts": {
   "increases": 132,
   "decreases": 139
  },
  "event_direction_counts": {
   "increases": 133,
   "decreases": 148,
   "mixed": 28
  },
  "prompt_index_first": 100,
  "prompt_index_last": 104.440995,
  "prompt_index_change_pct": 4.440995,
  "completion_index_first": 100,
  "completion_index_last": 105.043476,
  "completion_index_change_pct": 5.043476
 },
 "uncertainty": {
  "confidence_interval": null,
  "status": "NOT_APPLICABLE",
  "reason": "The curve is a census of the complete qualified fixed listing cohort, not a probability sample.",
  "reported_band": "Per-date empirical p10/p50/p90 model price relatives; this is dispersion, not a confidence interval."
 },
 "announcement_audit": {
  "status": "UNKNOWN",
  "events_checked": null,
  "silent_event_count": null,
  "reason": "No dated, archived announcement corpus was captured under a frozen search contract for these events."
 },
 "method": {
  "cohort": "The same model ID is present with fixed positive prompt and completion prices on every successful sealed date.",
  "index": "Equal-weight geometric mean of per-model price relatives to the first date, normalized to 100.",
  "reprice": "A numeric fixed-to-fixed change in prompt or completion between adjacent successful source seals.",
  "exclusions": "Free, variable, missing, invalid, catalog entry/exit, auxiliary pricing fields, key order, and nonadjacent observations cannot create a fixed-price reprice."
 },
 "displays": [
  {
   "key": "edition.fromDate",
   "display": "June 11, 2026",
   "value": "2026-06-11",
   "kind": "date"
  },
  {
   "key": "edition.toDate",
   "display": "August 10, 2026",
   "value": "2026-08-10",
   "kind": "date"
  },
  {
   "key": "edition.elapsedDays",
   "display": "60",
   "value": 60,
   "kind": "count"
  },
  {
   "key": "edition.sealedDates",
   "display": "56",
   "value": 56,
   "kind": "count"
  },
  {
   "key": "edition.modelRows",
   "display": "19,360",
   "value": 19360,
   "kind": "count"
  },
  {
   "key": "edition.modelIds",
   "display": "449",
   "value": 449,
   "kind": "count"
  },
  {
   "key": "audit.rawChangedModels",
   "display": "169",
   "value": 169,
   "kind": "count"
  },
  {
   "key": "audit.adjacentChangedModels",
   "display": "168",
   "value": 168,
   "kind": "count"
  },
  {
   "key": "audit.fullChangeEvents",
   "display": "435",
   "value": 435,
   "kind": "count"
  },
  {
   "key": "audit.repriceEvents",
   "display": "309",
   "value": 309,
   "kind": "count"
  },
  {
   "key": "audit.repricedModels",
   "display": "88",
   "value": 88,
   "kind": "count"
  },
  {
   "key": "audit.stateTransitions",
   "display": "2",
   "value": 2,
   "kind": "count"
  },
  {
   "key": "audit.auxiliaryOnly",
   "display": "124",
   "value": 124,
   "kind": "count"
  },
  {
   "key": "audit.nonadjacentExcluded",
   "display": "1",
   "value": 1,
   "kind": "count"
  },
  {
   "key": "audit.unlinkedStoredRowsExcluded",
   "display": "2",
   "value": 2,
   "kind": "count"
  },
  {
   "key": "index.cohortModels",
   "display": "275",
   "value": 275,
   "kind": "count"
  },
  {
   "key": "index.base",
   "display": "100.00",
   "value": 100,
   "kind": "index"
  },
  {
   "key": "index.prompt.last",
   "display": "104.44",
   "value": 104.440995,
   "kind": "index"
  },
  {
   "key": "index.prompt.change",
   "display": "+4.44%",
   "value": 4.440995,
   "kind": "percent"
  },
  {
   "key": "index.prompt.titleRounded",
   "display": "4.4%",
   "value": 4.4,
   "kind": "percent"
  },
  {
   "key": "index.completion.last",
   "display": "105.04",
   "value": 105.043476,
   "kind": "index"
  },
  {
   "key": "index.completion.change",
   "display": "+5.04%",
   "value": 5.043476,
   "kind": "percent"
  },
  {
   "key": "directions.event.increases",
   "display": "133",
   "value": 133,
   "kind": "count"
  },
  {
   "key": "directions.event.decreases",
   "display": "148",
   "value": 148,
   "kind": "count"
  },
  {
   "key": "directions.event.mixed",
   "display": "28",
   "value": 28,
   "kind": "count"
  },
  {
   "key": "curve.2026-06-11.date",
   "display": "June 11, 2026",
   "value": "2026-06-11",
   "kind": "date"
  },
  {
   "key": "curve.2026-06-11.prompt.index",
   "display": "100.00",
   "value": 100,
   "kind": "index"
  },
  {
   "key": "curve.2026-06-11.prompt.p10",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-06-11.prompt.p50",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-06-11.prompt.p90",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-06-11.completion.index",
   "display": "100.00",
   "value": 100,
   "kind": "index"
  },
  {
   "key": "curve.2026-06-11.completion.p10",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-06-11.completion.p50",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-06-11.completion.p90",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-07-11.date",
   "display": "July 11, 2026",
   "value": "2026-07-11",
   "kind": "date"
  },
  {
   "key": "curve.2026-07-11.prompt.index",
   "display": "100.72",
   "value": 100.721044,
   "kind": "index"
  },
  {
   "key": "curve.2026-07-11.prompt.p10",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-07-11.prompt.p50",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-07-11.prompt.p90",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-07-11.completion.index",
   "display": "100.97",
   "value": 100.971222,
   "kind": "index"
  },
  {
   "key": "curve.2026-07-11.completion.p10",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-07-11.completion.p50",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-07-11.completion.p90",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-08-10.date",
   "display": "August 10, 2026",
   "value": "2026-08-10",
   "kind": "date"
  },
  {
   "key": "curve.2026-08-10.prompt.index",
   "display": "104.44",
   "value": 104.440995,
   "kind": "index"
  },
  {
   "key": "curve.2026-08-10.prompt.p10",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-08-10.prompt.p50",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-08-10.prompt.p90",
   "display": "117.83",
   "value": 117.827972,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-08-10.completion.index",
   "display": "105.04",
   "value": 105.043476,
   "kind": "index"
  },
  {
   "key": "curve.2026-08-10.completion.p10",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-08-10.completion.p50",
   "display": "100.00",
   "value": 100,
   "kind": "empirical-band"
  },
  {
   "key": "curve.2026-08-10.completion.p90",
   "display": "115.38",
   "value": 115.384615,
   "kind": "empirical-band"
  },
  {
   "key": "example.deepseek/deepseek-chat.2026-07-30.model",
   "display": "deepseek/deepseek-chat",
   "value": "deepseek/deepseek-chat",
   "kind": "label"
  },
  {
   "key": "example.deepseek/deepseek-chat.2026-07-30.fromDate",
   "display": "July 29, 2026",
   "value": "2026-07-29",
   "kind": "date"
  },
  {
   "key": "example.deepseek/deepseek-chat.2026-07-30.toDate",
   "display": "July 30, 2026",
   "value": "2026-07-30",
   "kind": "date"
  },
  {
   "key": "example.deepseek/deepseek-chat.2026-07-30.prompt.from",
   "display": "$0.2002",
   "value": 0.2002,
   "kind": "money-per-million"
  },
  {
   "key": "example.deepseek/deepseek-chat.2026-07-30.prompt.to",
   "display": "$0.2574",
   "value": 0.2574,
   "kind": "money-per-million"
  },
  {
   "key": "example.deepseek/deepseek-chat.2026-07-30.completion.from",
   "display": "$0.8001",
   "value": 0.8001,
   "kind": "money-per-million"
  },
  {
   "key": "example.deepseek/deepseek-chat.2026-07-30.completion.to",
   "display": "$1.0287",
   "value": 1.0287,
   "kind": "money-per-million"
  },
  {
   "key": "example.x-ai/grok-4.20-multi-agent.2026-06-16.model",
   "display": "x-ai/grok-4.20-multi-agent",
   "value": "x-ai/grok-4.20-multi-agent",
   "kind": "label"
  },
  {
   "key": "example.x-ai/grok-4.20-multi-agent.2026-06-16.fromDate",
   "display": "June 15, 2026",
   "value": "2026-06-15",
   "kind": "date"
  },
  {
   "key": "example.x-ai/grok-4.20-multi-agent.2026-06-16.toDate",
   "display": "June 16, 2026",
   "value": "2026-06-16",
   "kind": "date"
  },
  {
   "key": "example.x-ai/grok-4.20-multi-agent.2026-06-16.prompt.from",
   "display": "$2.00",
   "value": 2,
   "kind": "money-per-million"
  },
  {
   "key": "example.x-ai/grok-4.20-multi-agent.2026-06-16.prompt.to",
   "display": "$1.25",
   "value": 1.25,
   "kind": "money-per-million"
  },
  {
   "key": "example.x-ai/grok-4.20-multi-agent.2026-06-16.completion.from",
   "display": "$6.00",
   "value": 6,
   "kind": "money-per-million"
  },
  {
   "key": "example.x-ai/grok-4.20-multi-agent.2026-06-16.completion.to",
   "display": "$2.50",
   "value": 2.5,
   "kind": "money-per-million"
  },
  {
   "key": "example.qwen/qwen3-coder.2026-07-16.model",
   "display": "qwen/qwen3-coder",
   "value": "qwen/qwen3-coder",
   "kind": "label"
  },
  {
   "key": "example.qwen/qwen3-coder.2026-07-16.fromDate",
   "display": "July 14, 2026",
   "value": "2026-07-14",
   "kind": "date"
  },
  {
   "key": "example.qwen/qwen3-coder.2026-07-16.toDate",
   "display": "July 16, 2026",
   "value": "2026-07-16",
   "kind": "date"
  },
  {
   "key": "example.qwen/qwen3-coder.2026-07-16.prompt.from",
   "display": "$0.22",
   "value": 0.22,
   "kind": "money-per-million"
  },
  {
   "key": "example.qwen/qwen3-coder.2026-07-16.prompt.to",
   "display": "$0.30",
   "value": 0.3,
   "kind": "money-per-million"
  },
  {
   "key": "example.qwen/qwen3-coder.2026-07-16.completion.from",
   "display": "$1.80",
   "value": 1.8,
   "kind": "money-per-million"
  },
  {
   "key": "example.qwen/qwen3-coder.2026-07-16.completion.to",
   "display": "$1.00",
   "value": 1,
   "kind": "money-per-million"
  }
 ],
 "facts": {
  "honestyStatement": "Every reported value is re-derived from the sealed rows; nothing is estimated, modeled, annualized, or extrapolated.",
  "limitation": "This is an OpenRouter listing index without usage, quality, capability, invoice, or direct-vendor weights.",
  "announcementStatus": "Whether any fixed-price event lacked a vendor announcement is UNKNOWN."
 },
 "curve": [
  {
   "date": "2026-06-11",
   "cohort_models": 275,
   "prompt": {
    "index": 100,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "bdc0169749cdf2b01432aa91d46c5ef5514600d7d417ae96894ab71d5749a778"
  },
  {
   "date": "2026-06-12",
   "cohort_models": 275,
   "prompt": {
    "index": 100.386484,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.08535,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "44e97b1bb943ffca2a962c89fb99b82ef34a9e48ca3726311c18e05c2ef8e450"
  },
  {
   "date": "2026-06-13",
   "cohort_models": 275,
   "prompt": {
    "index": 100.362927,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.108542,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "3840dfabaeecf1ac9a2ee714eb2eb0d99ecc5d02501a980a21e038ba13e0fbcb"
  },
  {
   "date": "2026-06-14",
   "cohort_models": 275,
   "prompt": {
    "index": 100.331853,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.077547,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "52a1503d12e65d3d52e813f68cef6e8d2e3ee2c20ae4283e7ff2f20013b5c7d4"
  },
  {
   "date": "2026-06-15",
   "cohort_models": 275,
   "prompt": {
    "index": 100.362927,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.108542,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "5e3f13050ba6a33929e8a28f2513c7f9b58a6aa72c048ff0652ea5c83b62d108"
  },
  {
   "date": "2026-06-16",
   "cohort_models": 275,
   "prompt": {
    "index": 100.218084,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.884565,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "f35a0295fd91651e104f7f6b45971e974fbcf8d0777f0bca0448d3a00a983e3e"
  },
  {
   "date": "2026-06-17",
   "cohort_models": 275,
   "prompt": {
    "index": 100.187055,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.807233,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "0015d3c69353d336b6acd6beaec75e45bb1b4ae13ba3e587ddaa1928b0b59c1b"
  },
  {
   "date": "2026-06-18",
   "cohort_models": 275,
   "prompt": {
    "index": 100.161923,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.807233,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "13457ec1cd6b361aa36b398c0b7c21e42bf13a51c8071366317fd40aec88bd8c"
  },
  {
   "date": "2026-06-20",
   "cohort_models": 275,
   "prompt": {
    "index": 100.180667,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.717212,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "cea0be62de6ec6919ae1232f085533e7776bff3c5e1cdc24299bef2c5400feaa"
  },
  {
   "date": "2026-06-21",
   "cohort_models": 275,
   "prompt": {
    "index": 100.180667,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.717212,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "13ac385b4bd9c18f71170e0a55d84b091eb4256471f54326783f69029553dac7"
  },
  {
   "date": "2026-06-22",
   "cohort_models": 275,
   "prompt": {
    "index": 100.180667,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.707766,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "953ebbab1bb3f62f7de01863e85205858c421c98338c712384ebf423d9a2ba82"
  },
  {
   "date": "2026-06-23",
   "cohort_models": 275,
   "prompt": {
    "index": 100.348299,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.762466,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "5ecea826921773a3acb81b89922e9afdc58e7967eaf950327e0725e54d7cabdc"
  },
  {
   "date": "2026-06-24",
   "cohort_models": 275,
   "prompt": {
    "index": 100.228498,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.747658,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "603134e34bcbba796a609821661858868da03b35fafdb2475cd5f420171dfd7e"
  },
  {
   "date": "2026-06-25",
   "cohort_models": 275,
   "prompt": {
    "index": 100.228498,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.747658,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "06ec5feef1db792ecdd8a7d2a72cb177391846977dd549e2e049b641039d74ec"
  },
  {
   "date": "2026-06-26",
   "cohort_models": 275,
   "prompt": {
    "index": 99.92632,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.307423,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "bc654f5851c06f0e4cf7129ee89027ccdd97e30994d6b7526b006d6be8e364c2"
  },
  {
   "date": "2026-06-27",
   "cohort_models": 275,
   "prompt": {
    "index": 99.92632,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.242742,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "fbebff7260651fe5b605501fe57887511f7597317d583650074246aed8954d3d"
  },
  {
   "date": "2026-06-28",
   "cohort_models": 275,
   "prompt": {
    "index": 99.887973,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.204726,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "d7ce66959ce8e4053bc723e0e2334c9e80aff71c2c445e7b3ace515c5bf2e94c"
  },
  {
   "date": "2026-06-29",
   "cohort_models": 275,
   "prompt": {
    "index": 99.860022,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.181799,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "9ef2c5b10d896154cbd5911f1839d92f75262f204eb6dc89efe3fbc2371db4d8"
  },
  {
   "date": "2026-06-30",
   "cohort_models": 275,
   "prompt": {
    "index": 99.892067,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 99.304484,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "d9f717a189be237ef2c99da13659a2c47c6cc0ba1fd24aad1d1a67ffbec7d934"
  },
  {
   "date": "2026-07-01",
   "cohort_models": 275,
   "prompt": {
    "index": 100.420665,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.806243,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "1b3b6c3d20178991fcd1baeb8271ec3b68a11d34d1209a38cab1e440903dc711"
  },
  {
   "date": "2026-07-02",
   "cohort_models": 275,
   "prompt": {
    "index": 100.65774,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.820943,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "295157e35b1bb03044844de09e8fc5d76aff0828f44bfae8803311e0d178f92d"
  },
  {
   "date": "2026-07-03",
   "cohort_models": 275,
   "prompt": {
    "index": 100.658435,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.693412,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "b825b26bdaa53fa7c15604977fd9413626bddb12a1ded4b0217b1c18a65da82b"
  },
  {
   "date": "2026-07-05",
   "cohort_models": 275,
   "prompt": {
    "index": 100.636247,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.736548,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "e7bd46e78e3cc8e6669d3536bded4ac2b07642578c7cc8e75d4dd6b392b9a90e"
  },
  {
   "date": "2026-07-06",
   "cohort_models": 275,
   "prompt": {
    "index": 100.636247,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.736548,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "211e67ea0ab2e88dde15f167c7e2f76bcdb6f936b6b8199927dd4f50c31a2e70"
  },
  {
   "date": "2026-07-07",
   "cohort_models": 275,
   "prompt": {
    "index": 100.629719,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.73104,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "40964cbc1a1a09148de31d05cd06bd935e0da9b4a8f8d37937e55852455d5a3a"
  },
  {
   "date": "2026-07-09",
   "cohort_models": 275,
   "prompt": {
    "index": 100.624132,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.73104,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "90cdc92000462a7ba7ed5583caf82a0fdd8e368ab85465d4da6c4fec111c4de5"
  },
  {
   "date": "2026-07-10",
   "cohort_models": 275,
   "prompt": {
    "index": 100.834705,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 101.085165,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "d63ff68e542a074a8ac280828a3629e251e806926c3b9aa47d56ce49703d4d46"
  },
  {
   "date": "2026-07-11",
   "cohort_models": 275,
   "prompt": {
    "index": 100.721044,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 100.971222,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "996df69b4eb1b9185914161c29d8bab666c522c713306faa41d20f49fc52b13b"
  },
  {
   "date": "2026-07-12",
   "cohort_models": 275,
   "prompt": {
    "index": 100.482408,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 101.683688,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "350c28b67fe9f3b4324e3f1647f12a0f8520493983c3aa31af872841b9e7003e"
  },
  {
   "date": "2026-07-13",
   "cohort_models": 275,
   "prompt": {
    "index": 100.60319,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 101.809644,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "89e105e71b80b301ac22f155c19fdae939d0781248e0943823e9152a045c97d9"
  },
  {
   "date": "2026-07-14",
   "cohort_models": 275,
   "prompt": {
    "index": 100.28851,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "completion": {
    "index": 101.742168,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "dae2f45c44c52680d37f3c3c0f0647069c76ac2d7e081a911b932dc2be205ddc"
  },
  {
   "date": "2026-07-16",
   "cohort_models": 275,
   "prompt": {
    "index": 104.100905,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 114.025974
   },
   "completion": {
    "index": 104.367116,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 103.957895
   },
   "source_content_sha256": "807a126a5495c98f42835fe8c8aaa5a578cac145926a88747c5e28a1919e70aa"
  },
  {
   "date": "2026-07-17",
   "cohort_models": 275,
   "prompt": {
    "index": 104.19058,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.481728
   },
   "completion": {
    "index": 104.007458,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100.666667
   },
   "source_content_sha256": "aee30cb9b42cb08faeb64dc6e2203d15ae31a722d897439644e090c28b73232b"
  },
  {
   "date": "2026-07-18",
   "cohort_models": 275,
   "prompt": {
    "index": 104.188982,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.481728
   },
   "completion": {
    "index": 104.461827,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 103.511111
   },
   "source_content_sha256": "1fccbc846418c4d7ad8c447ac8f52ac640018a038156e4a7bd65fa8fc8667a12"
  },
  {
   "date": "2026-07-19",
   "cohort_models": 275,
   "prompt": {
    "index": 103.637058,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.481728
   },
   "completion": {
    "index": 104.107565,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 103.612121
   },
   "source_content_sha256": "84e765f803b33e33685beb863c2413bed7996c63fcb11761d2f4910710e76b15"
  },
  {
   "date": "2026-07-20",
   "cohort_models": 275,
   "prompt": {
    "index": 103.89987,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.481728
   },
   "completion": {
    "index": 104.291402,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 103.612121
   },
   "source_content_sha256": "fddd818199cb5ce294bf2aa1730b4349881b057113117ecb5a1fc691cab46b15"
  },
  {
   "date": "2026-07-21",
   "cohort_models": 275,
   "prompt": {
    "index": 103.622213,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 114.025974
   },
   "completion": {
    "index": 104.039055,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 102.929293
   },
   "source_content_sha256": "e91553d15c7321d25de1736324edab2b5986eeb775c540023cdd6802fa541a2d"
  },
  {
   "date": "2026-07-22",
   "cohort_models": 275,
   "prompt": {
    "index": 103.648261,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 114.025974
   },
   "completion": {
    "index": 104.116736,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 102.929293
   },
   "source_content_sha256": "474b249c5b4a870e7e080505971ee28861d4a6502d02fe407e00977e50d42be2"
  },
  {
   "date": "2026-07-23",
   "cohort_models": 275,
   "prompt": {
    "index": 104.331355,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 114.945055
   },
   "completion": {
    "index": 104.616367,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 105.741627
   },
   "source_content_sha256": "ff682e091808812019eaa1af5bf49e7161cd885588664a3f672227ce87cb3518"
  },
  {
   "date": "2026-07-24",
   "cohort_models": 275,
   "prompt": {
    "index": 103.844201,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 110
   },
   "completion": {
    "index": 104.439352,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 103.2
   },
   "source_content_sha256": "31c206fb3c5a651b9fc584e3bdebb0b5b81073a0eebaae03d7e397969711479b"
  },
  {
   "date": "2026-07-25",
   "cohort_models": 275,
   "prompt": {
    "index": 103.435373,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 108.076923
   },
   "completion": {
    "index": 104.272593,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 101.2
   },
   "source_content_sha256": "cbf61befa84e1d3a3aa249356bf3a7b4cb507da85ec1ac8c107d757b4f11e70d"
  },
  {
   "date": "2026-07-26",
   "cohort_models": 275,
   "prompt": {
    "index": 103.570036,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 109.74359
   },
   "completion": {
    "index": 104.368584,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 101.2
   },
   "source_content_sha256": "c855708cd5b0fd5f66b49bf5876f261489cbda848f413fe0af0864cf50be2e88"
  },
  {
   "date": "2026-07-27",
   "cohort_models": 275,
   "prompt": {
    "index": 103.559427,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 106.615385
   },
   "completion": {
    "index": 104.25094,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 100
   },
   "source_content_sha256": "fe1854360d1f97775bbc0bdd3d24c6d414e487b7650f39e7fb397b10fc7db8b6"
  },
  {
   "date": "2026-07-28",
   "cohort_models": 275,
   "prompt": {
    "index": 103.795437,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 109.74359
   },
   "completion": {
    "index": 104.346255,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 101.2
   },
   "source_content_sha256": "c2198f6648e39fc3e39ba205eef7d706b13252e11f146a44cd357077815ea15e"
  },
  {
   "date": "2026-07-29",
   "cohort_models": 275,
   "prompt": {
    "index": 104.302429,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.921288
   },
   "completion": {
    "index": 105.12143,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 112.694444
   },
   "source_content_sha256": "60d32114d5490c4ce6e189b92121391997279bbdec53c04b06dd4261dd8606c4"
  },
  {
   "date": "2026-07-30",
   "cohort_models": 275,
   "prompt": {
    "index": 104.687523,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 117.208625
   },
   "completion": {
    "index": 105.609719,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.921288
   },
   "source_content_sha256": "a3bcb8c1df3dd59aa3cbfe777ce6da44f1635f4a6c5efc718982b7a3f8f9e691"
  },
  {
   "date": "2026-07-31",
   "cohort_models": 275,
   "prompt": {
    "index": 104.569264,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 117.208625
   },
   "completion": {
    "index": 105.473667,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.744453
   },
   "source_content_sha256": "72385336ebf4238bdd63f3f292c9fba920012cf98301cbea9c293905fd542cbd"
  },
  {
   "date": "2026-08-01",
   "cohort_models": 275,
   "prompt": {
    "index": 104.394672,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 116.511628
   },
   "completion": {
    "index": 105.398013,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 114.465517
   },
   "source_content_sha256": "41e17e9a4f7b1aa90fd615a615078f5e09b041060db330752af71d68d74e023e"
  },
  {
   "date": "2026-08-02",
   "cohort_models": 275,
   "prompt": {
    "index": 104.394672,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 116.511628
   },
   "completion": {
    "index": 105.398013,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 114.465517
   },
   "source_content_sha256": "70e32bca9aed2010d216892fb13c5eddc46ae99d11bbb72b7635fdff37f8c93f"
  },
  {
   "date": "2026-08-03",
   "cohort_models": 275,
   "prompt": {
    "index": 104.914603,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 117.208625
   },
   "completion": {
    "index": 105.495183,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 114.465517
   },
   "source_content_sha256": "632d4c6351e22b37f5c731bb02ca097204d5780c2361ab43442f42b384999415"
  },
  {
   "date": "2026-08-04",
   "cohort_models": 275,
   "prompt": {
    "index": 104.488716,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 116.511628
   },
   "completion": {
    "index": 105.450535,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 114.465517
   },
   "source_content_sha256": "8950a2285eef034e2b095ed021e4d925ad5233c2560c3d855a3709f71e10935d"
  },
  {
   "date": "2026-08-05",
   "cohort_models": 275,
   "prompt": {
    "index": 104.40782,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 117.827972
   },
   "completion": {
    "index": 105.570504,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.207781
   },
   "source_content_sha256": "54b925b513a190c0452437038af7a506c40cc785390a27b3b478a9461ce0bb7b"
  },
  {
   "date": "2026-08-06",
   "cohort_models": 275,
   "prompt": {
    "index": 104.639551,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 117.208625
   },
   "completion": {
    "index": 105.493673,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.207781
   },
   "source_content_sha256": "f004d6ca4018cdf58160995e4698f68664a57e45783dfed1177068082adcd62a"
  },
  {
   "date": "2026-08-07",
   "cohort_models": 275,
   "prompt": {
    "index": 104.528477,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 117.827972
   },
   "completion": {
    "index": 105.74351,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.921288
   },
   "source_content_sha256": "f505ee893bbb9013646c5a4e0d4075084f6ab345d4cb81a3c841346dd88b0247"
  },
  {
   "date": "2026-08-09",
   "cohort_models": 275,
   "prompt": {
    "index": 105.05434,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 118.628571
   },
   "completion": {
    "index": 106.022532,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 116.441698
   },
   "source_content_sha256": "868cf4bf1a2cde35176ca5d747f07dbbeda774f7c3bdf100d631fef853e956d0"
  },
  {
   "date": "2026-08-10",
   "cohort_models": 275,
   "prompt": {
    "index": 104.440995,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 117.827972
   },
   "completion": {
    "index": 105.043476,
    "p10_relative": 100,
    "p50_relative": 100,
    "p90_relative": 115.384615
   },
   "source_content_sha256": "fb9333937a1139cb896927ec611af0148a710d0c25946a74f07bdec5a71d23cd"
  }
 ],
 "ledger": {
  "record_count": 309,
  "format": "CSV rows with curve points followed by fixed-price reprice events",
  "url": "/research-data/ai-model-pricing-trends-august-2026.csv",
  "csv_sha256": "c203a5782ffd1562403d5c4d55c23bd766b9780eb77a2b2515b2d7b0a657c7eb"
 },
 "named_examples": [
  {
   "event_id": "de0b6b1f48e15737f3a8cf34f6b2d1f1d05e78d2f5662331a420a9c96d225d89",
   "model_id": "deepseek/deepseek-chat",
   "from_date": "2026-07-29",
   "to_date": "2026-07-30",
   "changed_fields": [
    "prompt",
    "completion"
   ],
   "prices": {
    "prompt": {
     "from_state": "fixed",
     "to_state": "fixed",
     "from_usd_per_million": 0.2002,
     "to_usd_per_million": 0.2574,
     "percent_change": 28.571429
    },
    "completion": {
     "from_state": "fixed",
     "to_state": "fixed",
     "from_usd_per_million": 0.8001,
     "to_usd_per_million": 1.0287,
     "percent_change": 28.571429
    }
   },
   "old_row_sha256": "021511e2f22027f7ecfe007c3abdb9f75290ec34597380083ad5526394705da0",
   "new_row_sha256": "702a8cf93fc1679d308b438f1b8209c77a5e0293326192b748baae7ec2d0fadb",
   "old_content_sha256": "60d32114d5490c4ce6e189b92121391997279bbdec53c04b06dd4261dd8606c4",
   "new_content_sha256": "a3bcb8c1df3dd59aa3cbfe777ce6da44f1635f4a6c5efc718982b7a3f8f9e691"
  },
  {
   "event_id": "ce7191a586fd78e05aae504f31e26ab02776385915cf0839557c3be15df58d0f",
   "model_id": "x-ai/grok-4.20-multi-agent",
   "from_date": "2026-06-15",
   "to_date": "2026-06-16",
   "changed_fields": [
    "prompt",
    "completion"
   ],
   "prices": {
    "prompt": {
     "from_state": "fixed",
     "to_state": "fixed",
     "from_usd_per_million": 2,
     "to_usd_per_million": 1.25,
     "percent_change": -37.5
    },
    "completion": {
     "from_state": "fixed",
     "to_state": "fixed",
     "from_usd_per_million": 6,
     "to_usd_per_million": 2.5,
     "percent_change": -58.333333
    }
   },
   "old_row_sha256": "7041adf822aaf5a8315931fb0a3112bc39eca57ec8a0980d5ec00d6bcf975d3f",
   "new_row_sha256": "289462078f0c77b2256511c272445690d44770da97ce96e25cbe1172297fa728",
   "old_content_sha256": "5e3f13050ba6a33929e8a28f2513c7f9b58a6aa72c048ff0652ea5c83b62d108",
   "new_content_sha256": "f35a0295fd91651e104f7f6b45971e974fbcf8d0777f0bca0448d3a00a983e3e"
  },
  {
   "event_id": "d64b0d376d9d718e5811579dc3c040bda5b29a2677084e42a2c2cce9aa141836",
   "model_id": "qwen/qwen3-coder",
   "from_date": "2026-07-14",
   "to_date": "2026-07-16",
   "changed_fields": [
    "prompt",
    "completion"
   ],
   "prices": {
    "prompt": {
     "from_state": "fixed",
     "to_state": "fixed",
     "from_usd_per_million": 0.22,
     "to_usd_per_million": 0.3,
     "percent_change": 36.363636
    },
    "completion": {
     "from_state": "fixed",
     "to_state": "fixed",
     "from_usd_per_million": 1.8,
     "to_usd_per_million": 1,
     "percent_change": -44.444444
    }
   },
   "old_row_sha256": "59dd0b0d39ae8e7deeed7e5169330f5ec4aeb3d9fde2eba15eff41cf90afc41a",
   "new_row_sha256": "4b3c221f1252f5bc4b8b36b1f91634641edc920a9cda36cc8863c518ad2d9f39",
   "old_content_sha256": "dae2f45c44c52680d37f3c3c0f0647069c76ac2d7e081a911b932dc2be205ddc",
   "new_content_sha256": "807a126a5495c98f42835fe8c8aaa5a578cac145926a88747c5e28a1919e70aa"
  }
 ],
 "sha256": "e60402cf6db0cba5c7332dac1eae59d8cc609d63880331543c721b005780c203",
 "snapshotSha256": "e60402cf6db0cba5c7332dac1eae59d8cc609d63880331543c721b005780c203",
 "integrity": {
  "data_sha256": "e60402cf6db0cba5c7332dac1eae59d8cc609d63880331543c721b005780c203",
  "csv_sha256": "c203a5782ffd1562403d5c4d55c23bd766b9780eb77a2b2515b2d7b0a657c7eb",
  "definition": "data_sha256 covers canonical JSON before sha256, snapshotSha256, and integrity are added."
 }
}