{
 "version": "https://jsonfeed.org/version/1.1",
 "title": "Unbiased LLM Price Index: price changes",
 "home_page_url": "https://unbiased.ai/tools/llm-price-index/",
 "feed_url": "https://unbiased.ai/data/price-changes.json",
 "description": "List-price changes and announced changes, derived from /data/price-index-history.json.",
 "authors": [
  {
   "name": "Unbiased Team",
   "url": "https://unbiased.ai/blog/team/"
  }
 ],
 "language": "en",
 "items": [
  {
   "id": "tag:unbiased.ai,2026-10-17:price-index/announced/google/gemini-3.8-flash/2027-01-01",
   "url": "https://unbiased.ai/tools/llm-price-index/#m-google--gemini-3-8-flash",
   "external_url": "https://ai.google.dev/gemini-api/docs/pricing",
   "title": "Gemini 3.8 Flash: $1.50 in / $7.50 out from January 1, 2027 (announced)",
   "content_text": "Google's pricing page lists Gemini 3.8 Flash at $1.50 in / $7.50 out per million tokens from January 1, 2027, up from $0.75 in / $3.75 out. Seen on October 17, 2026.",
   "date_published": "2026-10-17T00:00:00Z",
   "tags": [
    "announced"
   ],
   "_unbiased_price_change": {
    "type": "announced",
    "date": "2026-10-17",
    "model_id": "google/gemini-3.8-flash",
    "old": {
     "input_usd_per_mtok": 0.75,
     "cached_input_usd_per_mtok": 0.075,
     "output_usd_per_mtok": 3.75
    },
    "new": {
     "input_usd_per_mtok": 1.5,
     "cached_input_usd_per_mtok": 0.15,
     "output_usd_per_mtok": 7.5
    },
    "effective": "2027-01-01"
   }
  },
  {
   "id": "tag:unbiased.ai,2026-10-17:price-index/announced/google/gemini-3.6-flash/2027-01-01",
   "url": "https://unbiased.ai/tools/llm-price-index/#m-google--gemini-3-6-flash",
   "external_url": "https://ai.google.dev/gemini-api/docs/pricing",
   "title": "Gemini 3.6 Flash: $1.50 in / $7.50 out from January 1, 2027 (announced)",
   "content_text": "Google's pricing page lists Gemini 3.6 Flash at $1.50 in / $7.50 out per million tokens from January 1, 2027, up from $0.75 in / $3.75 out. Seen on October 17, 2026.",
   "date_published": "2026-10-17T00:00:00Z",
   "tags": [
    "announced"
   ],
   "_unbiased_price_change": {
    "type": "announced",
    "date": "2026-10-17",
    "model_id": "google/gemini-3.6-flash",
    "old": {
     "input_usd_per_mtok": 0.75,
     "cached_input_usd_per_mtok": 0.075,
     "output_usd_per_mtok": 3.75
    },
    "new": {
     "input_usd_per_mtok": 1.5,
     "cached_input_usd_per_mtok": 0.15,
     "output_usd_per_mtok": 7.5
    },
    "effective": "2027-01-01"
   }
  },
  {
   "id": "tag:unbiased.ai,2026-10-17:price-index/announced/google/gemini-4-argon/2026-12-01",
   "url": "https://unbiased.ai/tools/llm-price-index/#m-google--gemini-4-argon",
   "external_url": "https://ai.google.dev/gemini-api/docs/pricing",
   "title": "Gemini 4 Argon: $4.00 in / $20.00 out from December 1, 2026 (announced)",
   "content_text": "Google's pricing page lists Gemini 4 Argon at $4.00 in / $20.00 out per million tokens from December 1, 2026, up from $2.00 in / $10.00 out. Seen on October 17, 2026.",
   "date_published": "2026-10-17T00:00:00Z",
   "tags": [
    "announced"
   ],
   "_unbiased_price_change": {
    "type": "announced",
    "date": "2026-10-17",
    "model_id": "google/gemini-4-argon",
    "old": {
     "input_usd_per_mtok": 2.0,
     "cached_input_usd_per_mtok": 0.1,
     "output_usd_per_mtok": 10.0
    },
    "new": {
     "input_usd_per_mtok": 4.0,
     "cached_input_usd_per_mtok": 0.2,
     "output_usd_per_mtok": 20.0
    },
    "effective": "2026-12-01"
   }
  },
  {
   "id": "tag:unbiased.ai,2026-10-17:price-index/tracking_started/index/2026-10-17",
   "url": "https://unbiased.ai/tools/llm-price-index/#prices",
   "external_url": "https://unbiased.ai/tools/llm-price-index/",
   "title": "Price index started: 57 models from 7 providers",
   "content_text": "The Unbiased LLM Price Index started tracking 57 models on October 17, 2026, each price read from the provider's own pricing page.",
   "date_published": "2026-10-17T00:00:00Z",
   "tags": [
    "tracking_started"
   ],
   "_unbiased_price_change": {
    "type": "tracking_started",
    "date": "2026-10-17",
    "model_ids": [
     "anthropic/claude-fable-5",
     "anthropic/claude-fable-5-1",
     "anthropic/claude-haiku-4-5",
     "anthropic/claude-haiku-5-5",
     "anthropic/claude-mythos-5",
     "anthropic/claude-mythos-5-1",
     "anthropic/claude-opus-4-5",
     "anthropic/claude-opus-4-6",
     "anthropic/claude-opus-4-7",
     "anthropic/claude-opus-4-8",
     "anthropic/claude-opus-5",
     "anthropic/claude-opus-5-5",
     "anthropic/claude-sonnet-4-5",
     "anthropic/claude-sonnet-4-6",
     "anthropic/claude-sonnet-5",
     "anthropic/claude-sonnet-5-5",
     "deepseek/deepseek-flash",
     "deepseek/deepseek-v4-pro",
     "google/gemini-2.5-flash",
     "google/gemini-2.5-flash-lite",
     "google/gemini-2.5-pro",
     "google/gemini-3-flash-preview",
     "google/gemini-3.1-flash-lite",
     "google/gemini-3.1-pro-preview",
     "google/gemini-3.5-flash-lite",
     "google/gemini-3.6-flash",
     "google/gemini-3.8-flash",
     "google/gemini-4-argon",
     "moonshot/kimi-k2.6",
     "moonshot/kimi-k2.7-code",
     "moonshot/kimi-k2.7-code-highspeed",
     "moonshot/kimi-k3",
     "openai/gpt-4.1",
     "openai/gpt-5-mini",
     "openai/gpt-5-nano",
     "openai/gpt-5.2",
     "openai/gpt-5.3-codex",
     "openai/gpt-5.4",
     "openai/gpt-5.4-mini",
     "openai/gpt-5.4-nano",
     "openai/gpt-5.5",
     "openai/gpt-5.5-pro",
     "openai/gpt-6-astra",
     "openai/gpt-6-luna",
     "openai/gpt-6-sol",
     "openai/gpt-6.1-sol",
     "openai/o3",
     "openai/o4-mini",
     "unbiased/pareto",
     "xai/grok-4.20-0309-non-reasoning",
     "xai/grok-4.20-0309-reasoning",
     "xai/grok-4.20-multi-agent-0309",
     "xai/grok-4.3",
     "xai/grok-4.5",
     "xai/grok-4.6",
     "xai/grok-4.7",
     "xai/grok-build-0.1"
    ]
   }
  }
 ]
}