{
  "_comment": "Driftproof model registry. The runner resolves --models ids against this list; an unknown id still runs but its receipt is marked registry:\"unregistered\" and its cost is estimated with the conservative default price in lib/models.js. Prices are STANDARD first-party USD per 1,000,000 tokens (input/output). Anthropic prices are from platform.claude.com (July 2026); Sonnet 5's introductory rate is deliberately NOT used so projections stay an upper bound. OpenAI prices are the public standard per-MTok rates as of July 2026 (see reports/phase-6-providers.md for the fetched source): GPT-5.6 Sol $5/$30, Terra $2.50/$15, Luna $1/$6; GPT-5.5 $5/$30; GPT-5.4 $2.50/$15. gpt-5.4-mini is NOT in the published table (which lists a Nano tier at $0.20/$1.25), so its price here is a deliberately conservative UPPER-bound estimate flagged price_estimate:true. `released` is best-effort (spec RECEIPT.md open question #4). `tier` drives reporting; `judge_eligible` encodes the fixed-judge policy (docs/judge-policy.html) \u2014 only the cheap Haiku judge is eligible, and NO OpenAI model is judge-eligible (the judge stays claude-haiku across providers so a cross-substrate report varies only the target model). `provider` is the two-axis provider; per-provider surface/base_url config is under `providers`. The release trigger (scripts/release-watch.js) appends auto-discovered ids here with auto_added:true. Three optional per-row annotations were added by spec-019b (2026-09-01) and are read by NO code path in lib/: `cache_read_price` is the documented cache-read rate per MTok, recorded for provenance and NOT consumed -- lib/cost.js prices input and output only, and the 019b gate asserts that it stays that way, so wiring caching into the projection turns that assertion red rather than leaving this note quietly false; `lifecycle: legacy` records that the docs moved an id to the Legacy list, and never means removed (claude-fable-5 is referenced by receipts/report-007 and receipts/report-007-rerun); `surface_verified` records that a live call reached the id on that surface on `surface_verified_at`, which is an OBSERVATION, not a routing setting -- the surface is chosen at call time by lib/provider.js from CLAUDE_PROVIDER. claude-fable-5-1 prices are sourced to specs/019b-fable-5-1-registration/evidence/docs-pricing-snapshot-2026-09-01.json. APPROVED FOR SPEC 042's RUN ONLY (operator, 2026-09-23): the npm 0.10.1 registry, unchanged in every other row, plus one row for claude-opus-5-5 at $4 / $20 per MTok (cache read $0.20), priced from specs/042-opus-5-5-release-receipts/evidence/docs-pricing-snapshot-2026-09-23.json. This row is not in config/models.json and registers nothing in the product; run/run.sh passes this file as DRIFTPROOF_REGISTRY and copies it, with its source, into the run record.",
  "registry_version": "1.1",
  "provider": "anthropic",
  "providers": {
    "anthropic": {
      "surfaces": [
        "api",
        "cli"
      ]
    },
    "openai": {
      "base_url": "https://api.openai.com/v1",
      "api_key_env": "OPENAI_API_KEY",
      "surfaces": [
        "api",
        "cli"
      ]
    }
  },
  "default_price_note": "Unregistered ids are costed at the most expensive known tier (Fable, $10/$50) \u2014 a budget guard must never under-estimate. See lib/models.js DEFAULT_PRICE.",
  "models": [
    {
      "id": "claude-fable-5-1",
      "family": "fable",
      "provider": "anthropic",
      "released": "2026-09-01",
      "input_price": 10.0,
      "output_price": 50.0,
      "cache_read_price": 0.25,
      "tier": "frontier",
      "judge_eligible": false,
      "surface_verified": "claude-cli",
      "surface_verified_at": "2026-09-01"
    },
    {
      "id": "claude-fable-5",
      "family": "fable",
      "provider": "anthropic",
      "released": "2026-06-09",
      "input_price": 10.0,
      "output_price": 50.0,
      "tier": "frontier",
      "judge_eligible": false,
      "lifecycle": "legacy"
    },
    {
      "id": "claude-opus-5",
      "family": "opus",
      "provider": "anthropic",
      "released": null,
      "input_price": 5.0,
      "output_price": 25.0,
      "tier": "frontier",
      "judge_eligible": false
    },
    {
      "id": "claude-opus-4-8",
      "family": "opus",
      "provider": "anthropic",
      "released": null,
      "input_price": 5.0,
      "output_price": 25.0,
      "tier": "frontier",
      "judge_eligible": false
    },
    {
      "id": "claude-opus-4-7",
      "family": "opus",
      "provider": "anthropic",
      "released": null,
      "input_price": 5.0,
      "output_price": 25.0,
      "tier": "frontier",
      "judge_eligible": false
    },
    {
      "id": "claude-opus-4-6",
      "family": "opus",
      "provider": "anthropic",
      "released": null,
      "input_price": 5.0,
      "output_price": 25.0,
      "tier": "frontier",
      "judge_eligible": false
    },
    {
      "id": "claude-opus-4-5-20251101",
      "family": "opus",
      "provider": "anthropic",
      "released": "2025-11-01",
      "input_price": 5.0,
      "output_price": 25.0,
      "tier": "frontier",
      "judge_eligible": false
    },
    {
      "id": "claude-sonnet-5",
      "family": "sonnet",
      "provider": "anthropic",
      "released": "2026-06-30",
      "input_price": 3.0,
      "output_price": 15.0,
      "tier": "standard",
      "judge_eligible": false
    },
    {
      "id": "claude-sonnet-4-6",
      "family": "sonnet",
      "provider": "anthropic",
      "released": "2026-02-17",
      "input_price": 3.0,
      "output_price": 15.0,
      "tier": "standard",
      "judge_eligible": false
    },
    {
      "id": "claude-sonnet-4-5-20250929",
      "family": "sonnet",
      "provider": "anthropic",
      "released": "2025-09-29",
      "input_price": 3.0,
      "output_price": 15.0,
      "tier": "standard",
      "judge_eligible": false
    },
    {
      "id": "claude-haiku-4-5",
      "family": "haiku",
      "provider": "anthropic",
      "released": "2025-10-01",
      "input_price": 1.0,
      "output_price": 5.0,
      "tier": "cheap",
      "judge_eligible": true
    },
    {
      "id": "claude-haiku-4-5-20251001",
      "family": "haiku",
      "provider": "anthropic",
      "released": "2025-10-01",
      "input_price": 1.0,
      "output_price": 5.0,
      "tier": "cheap",
      "judge_eligible": true
    },
    {
      "id": "gpt-5.6-sol",
      "family": "gpt-5.6",
      "provider": "openai",
      "released": "2026-07-09",
      "input_price": 5.0,
      "output_price": 30.0,
      "tier": "frontier",
      "judge_eligible": false
    },
    {
      "id": "gpt-5.6-terra",
      "family": "gpt-5.6",
      "provider": "openai",
      "released": "2026-07-09",
      "input_price": 2.5,
      "output_price": 15.0,
      "tier": "standard",
      "judge_eligible": false
    },
    {
      "id": "gpt-5.6-luna",
      "family": "gpt-5.6",
      "provider": "openai",
      "released": "2026-07-09",
      "input_price": 1.0,
      "output_price": 6.0,
      "tier": "cheap",
      "judge_eligible": false
    },
    {
      "id": "gpt-5.5",
      "family": "gpt-5.5",
      "provider": "openai",
      "released": null,
      "input_price": 5.0,
      "output_price": 30.0,
      "tier": "frontier",
      "judge_eligible": false
    },
    {
      "id": "gpt-5.4",
      "family": "gpt-5.4",
      "provider": "openai",
      "released": null,
      "input_price": 2.5,
      "output_price": 15.0,
      "tier": "standard",
      "judge_eligible": false
    },
    {
      "id": "gpt-5.4-mini",
      "family": "gpt-5.4",
      "provider": "openai",
      "released": null,
      "input_price": 0.4,
      "output_price": 2.0,
      "tier": "cheap",
      "judge_eligible": false,
      "price_estimate": true,
      "price_note": "conservative upper-bound estimate; the public table lists a GPT-5.4 Nano tier ($0.20/$1.25) but not a Mini rate as of July 2026"
    },
    {
      "id": "claude-opus-5-5",
      "family": "opus",
      "provider": "anthropic",
      "released": "2026-09-22",
      "input_price": 4.0,
      "output_price": 20.0,
      "tier": "frontier",
      "judge_eligible": false,
      "cache_read_price": 0.2
    }
  ]
}