{
  "evidence_type": "current launch list rates",
  "approved_date": "2026-10-03",
  "price_version": "S1-LAUNCH-3",
  "status": "current rates for usage created after the 3 Oct 2026 deploy; earlier usage keeps the rate recorded on its receipt",
  "unit": "currency per 1,000,000 actual input tokens",
  "output_tokens": "free",
  "rates": {
    "USD": {
      "s1-fast": { "global": 0.032, "eu": 0.034 },
      "s1-pro": { "global": 0.038, "eu": 0.040 },
      "s1-vision": { "global": 0.038, "eu": 0.040 },
      "s1-llm-auto-router": { "global": 0.001, "eu": 0.001 }
    },
    "EUR": {
      "s1-fast": { "global": 0.028, "eu": 0.030 },
      "s1-pro": { "global": 0.033, "eu": 0.035 },
      "s1-vision": { "global": 0.033, "eu": 0.035 },
      "s1-llm-auto-router": { "global": 0.001, "eu": 0.001 }
    }
  },
  "peer_to_peer_change": {
    "date": "2026-10-03",
    "rule": "Peer-to-Peer is about 5 % below EU, rounded to 0.001 per 1M input tokens. EU and s1-llm-auto-router rates are unchanged.",
    "previous_rates": "/evidence/launch-prices-2026-09-27.json",
    "applies_to": "requests created after deploy; no retroactive re-rating"
  },
  "eur_rate_basis": {
    "method": "Fixed EUR list rates converted from the approved USD schedule and rounded to EUR 0.001 per million input tokens.",
    "reference": "ECB euro foreign exchange reference rate",
    "reference_date": "2026-09-25",
    "eur_to_usd": 1.1403,
    "source": "https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/html/index.en.html"
  },
  "jev_comparator": {
    "usd_per_million_input_tokens": 0.042,
    "output_tokens": "free",
    "checked_date": "2026-09-27",
    "source": "https://typesafe.ai/blog/introducing-system-one-models-and-jev"
  },
  "s1_llm_auto_router_note": "s1-llm-auto-router added 2 Oct 2026 (Florian GO). The proposed launch price was USD 0.0015 per 1M input tokens; the ledger bills whole nano-units per token, so the launch rate is USD/EUR 0.001 per 1M in both tiers. CPU-only fixed-schema routing classifier.",
  "s1_vision_note": "s1-vision added 30 Sep 2026 at the s1-pro rates (Opus pricing review). Images were billed at the s1-pro rates until the s1-vision image rate (price book S1-LAUNCH-3-IMAGE) went live on 3 Oct 2026. Text-only s1-vision requests keep the s1-pro rates above. Public since 1 Oct 2026.",
  "s1_vision_image_requests": {
    "price_version": "S1-LAUNCH-3-IMAGE",
    "approved_date": "2026-10-03",
    "applies_to": "s1-vision requests that contain an image: all their input tokens (text and image positions) are billed at the image rate. Text-only s1-vision requests keep the s1-vision text rates above (S1-LAUNCH-3).",
    "reason": "Image requests take about 3x the GPU time per input token of text requests.",
    "status": "current rate for usage created after the 3 Oct 2026 deploy; earlier usage keeps the rate recorded on its receipt",
    "unit": "currency per 1,000,000 actual input tokens",
    "output_tokens": "free",
    "launch_pricing": true,
    "USD": { "global": 0.217, "eu": 0.228 },
    "EUR": { "global": 0.190, "eu": 0.200 }
  }
}