{
  "evidence_type": "current list rates for the new model lineup",
  "approved_date": "2026-10-11",
  "price_version": "S1-LAUNCH-6",
  "status": "current rates for new customers and all public pages from the 11 Oct 2026 lineup cutover; customers with an account before the cutover keep the existing-customer s1-pro rates below until the end date; earlier usage keeps the rate recorded on its receipt",
  "unit": "currency per 1,000,000 actual input tokens",
  "output_tokens": "free",
  "models": { "quyet-1-large": { "available": true }, "reax-1": { "available": true }, "reax-1.2": { "available": true } },
  "s1_pro_precision": "FP8",
  "rates": {
    "USD": {
      "s1-fast": { "global": 0.019, "eu": 0.021 },
      "s1-pro": { "global": 0.080, "eu": 0.084 },
      "s1-vision": { "global": 0.031, "eu": 0.032 },
      "quyet-1-large": { "global": 0.035, "eu": 0.038 },
      "reax-1": { "global": 0.080, "eu": 0.084 },
      "reax-1.2": { "global": 0.080, "eu": 0.084 },
      "s1-llm-auto-router": { "global": 0.001, "eu": 0.001 }
    },
    "EUR": {
      "s1-fast": { "global": 0.017, "eu": 0.018 },
      "s1-pro": { "global": 0.070, "eu": 0.074 },
      "s1-vision": { "global": 0.027, "eu": 0.028 },
      "quyet-1-large": { "global": 0.031, "eu": 0.033 },
      "reax-1": { "global": 0.070, "eu": 0.074 },
      "reax-1.2": { "global": 0.070, "eu": 0.074 },
      "s1-llm-auto-router": { "global": 0.001, "eu": 0.001 }
    }
  },
  "s1_pro_existing_customers": {
    "price_version": "S1-LAUNCH-5",
    "until": "2026-11-12",
    "rule": "Customers whose account existed before the 11 Oct 2026 cutover keep these s1-pro rates for usage created before the end date and are billed the s1-pro rates above from that date. New customers are billed the rates above from the start.",
    "USD": { "global": 0.038, "eu": 0.040 },
    "EUR": { "global": 0.033, "eu": 0.035 },
    "positioning": "s1-pro is a premium offer for speed, EU hosting, dedicated capacity and one API; it is not the lowest-priced model."
  },
  "previous_rates": "/evidence/launch-prices-2026-10-03.json",
  "applies_to": "requests created after the cutover; no retroactive re-rating",
  "eur_rate_basis": {
    "method": "EUR list rates approved by Florian; USD = EUR x 1.1403, rounded to 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"
  },
  "model_basis": {
    "s1-pro": "26B model based on vLLM-SR d3 (Apache-2.0), served in FP8 on our own engine; previous version Perplexity Decider v1.1 (Apache-2.0) stays available as s1-pro-2 until at least 11 Nov 2026",
    "s1-fast": "based on Blink v0.3 26B-A4B (Apache-2.0), NVFP4; text",
    "s1-vision": "same Blink model; one image plus text",
    "quyet-1-large": "Quyet-1.0-Large by Chinh Nguyen (Apache-2.0), FP8; text only, explicit model id",
    "reax-1.2": "REAX 1.2 by Decision Models, a fine-tune of REAX 1 (Apache-2.0), itself a fine-tune of Perplexity Decider v1.2 by Perplexity (Apache-2.0), derived from Qwen3.8-27B by the Qwen team (Apache-2.0). Not affiliated with or endorsed by Perplexity AI or the Qwen team. 27B, text only, billed at the s1-pro list rate.",
    "reax-1": "REAX 1 by Decision Models, a fine-tune of Perplexity Decider v1.2 by Perplexity (Apache-2.0), derived from Qwen3.8-27B by the Qwen team (Apache-2.0). Not affiliated with or endorsed by Perplexity AI or the Qwen team. Text only, billed at the s1-pro list rate. reax-1 always points to the current REAX 1 release. We may replace the model behind this id with a newer REAX version at any time, with the same API and price; we switch only to a version that measures at least as well on our evaluations. For reproducibility, pin a dated id such as reax-1-20261021; pinned ids stay available for at least 30 days after they stop being current."
  },
  "s1_llm_auto_router_note": "s1-llm-auto-router is unchanged: USD/EUR 0.001 per 1M input tokens in both tiers. CPU-only fixed-schema routing classifier.",
  "s1_vision_note": "Text-only s1-vision requests use the s1-vision text rate above. Requests that contain an image keep the image-request rate below.",
  "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 use the s1-vision text rate above.",
    "reason": "Image requests take about 3x the GPU time per input token of text requests.",
    "status": "unchanged by the 11 Oct 2026 lineup prices",
    "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 }
  }
}