{"schema_version":1,"checked_at_utc":"2026-10-09T03:18:48Z","checked_date_pacific":"2026-10-08","currency":"USD","price_unit":"1,000,000 tokens","pricing_mode":"standard on-demand first-party text API","defaults":{"cache_hit_fraction":0,"output_tokens_include_reasoning":true},"exclusions":["batch/flex/fast/priority","regional uplifts","tools and grounding","media","taxes","negotiated discounts","cache creation/storage unless explicitly modeled"],"models":[{"id":"gpt-5.2","provider":"OpenAI","name":"GPT-5.2","snapshot_id":"gpt-5.2-2025-12-11","input_usd_per_mtok":1.75,"output_usd_per_mtok":14,"cached_input_usd_per_mtok":0.175,"context_window_tokens":400000,"max_output_tokens":128000,"long_context":null,"status":"previous flagship","benchmark_match_candidate":"gpt-5-2-2025-12-11-high","sources":[{"url":"https://developers.openai.com/api/docs/models/gpt-5.2","supports":"model ID, snapshot, price, limits"}],"checked_date_pacific":"2026-10-08"},{"id":"gemini-3.1-pro-preview","provider":"Google","name":"Gemini 3.1 Pro Preview","snapshot_id":null,"input_usd_per_mtok":2,"output_usd_per_mtok":12,"cached_input_usd_per_mtok":0.2,"cache_storage_usd_per_mtok_hour":4.5,"input_token_limit":1048576,"max_output_tokens":65536,"long_context":{"input_threshold_exclusive":200000,"input_usd_per_mtok":4,"output_usd_per_mtok":18,"cached_input_usd_per_mtok":0.4},"status":"preview","benchmark_match_candidate":"gemini-3.1-pro-preview","sources":[{"url":"https://ai.google.dev/gemini-api/docs/pricing","section":"Gemini 3.1 Pro Preview / Standard","supports":"text pricing, 200k threshold, cache storage"},{"url":"https://ai.google.dev/gemini-api/docs/models/gemini-3.1-pro-preview","supports":"model ID and token limits"}],"checked_date_pacific":"2026-10-08"},{"id":"claude-opus-4-8","provider":"Anthropic","name":"Claude Opus 4.8","snapshot_id":null,"input_usd_per_mtok":5,"output_usd_per_mtok":25,"cached_input_usd_per_mtok":0.5,"cache_write_5m_usd_per_mtok":6.25,"cache_write_1h_usd_per_mtok":10,"context_window_tokens":1000000,"max_output_tokens":128000,"long_context":{"premium":false},"status":"active legacy","benchmark_match_candidate":"claude-opus-4-8-high","sources":[{"url":"https://platform.claude.com/docs/en/models/opus-4-8/overview","supports":"model ID, price, limits, legacy status"},{"url":"https://platform.claude.com/docs/en/about-claude/pricing","supports":"full-context standard rates"}],"checked_date_pacific":"2026-10-08"},{"id":"claude-sonnet-5-5","provider":"Anthropic","name":"Claude Sonnet 5.5","snapshot_id":null,"input_usd_per_mtok":2,"output_usd_per_mtok":10,"cached_input_usd_per_mtok":0.1,"cache_write_5m_usd_per_mtok":2.5,"cache_write_1h_usd_per_mtok":4,"context_window_tokens":1000000,"max_output_tokens":128000,"long_context":{"premium":false},"status":"active latest","benchmark_match_candidate":null,"benchmark_note":"No comparable score selected; cost-only until exact compatible evaluation data is verified.","sources":[{"url":"https://platform.claude.com/docs/en/models/sonnet-5-5/overview","supports":"model ID, price, limits, latest status"},{"url":"https://platform.claude.com/docs/en/about-claude/pricing","supports":"full-context standard rates"}],"checked_date_pacific":"2026-10-08"},{"id":"gemini-3-flash-preview","provider":"Google","name":"Gemini 3 Flash Preview","snapshot_id":null,"input_usd_per_mtok":0.5,"output_usd_per_mtok":3,"cached_input_usd_per_mtok":0.05,"cache_storage_usd_per_mtok_hour":1,"input_token_limit":1048576,"max_output_tokens":65536,"long_context":null,"status":"preview, legacy Flash","benchmark_match_candidate":"gemini-3-flash-preview-thinking-high","sources":[{"url":"https://ai.google.dev/gemini-api/docs/pricing","section":"Gemini 3 Flash Preview / Standard","supports":"text pricing and cache storage"},{"url":"https://ai.google.dev/gemini-api/docs/models/gemini-3-flash-preview","supports":"model ID and token limits"}],"checked_date_pacific":"2026-10-08"},{"id":"gemini-3.8-flash","provider":"Google","name":"Gemini 3.8 Flash","snapshot_id":null,"input_usd_per_mtok":0.75,"output_usd_per_mtok":3.75,"cached_input_usd_per_mtok":0.075,"cache_storage_usd_per_mtok_hour":0.5,"input_token_limit":1048576,"max_output_tokens":65536,"long_context":null,"status":"stable latest Flash","price_valid_through":"2026-12-31","announced_price_change":{"effective_date":"2027-01-01","input_usd_per_mtok":1.5,"output_usd_per_mtok":7.5,"cached_input_usd_per_mtok":0.15,"cache_storage_usd_per_mtok_hour":1},"benchmark_match_candidate":null,"benchmark_note":"No comparable score selected; cost-only until exact compatible evaluation data is verified.","sources":[{"url":"https://ai.google.dev/gemini-api/docs/pricing","section":"Gemini 3.8 Flash / Standard","supports":"current and scheduled prices"},{"url":"https://ai.google.dev/gemini-api/docs/models/gemini-3.8-flash","supports":"model ID, stable status and token limits"}],"checked_date_pacific":"2026-10-08"}],"caveats":["Prices were checked on October 8, 2026 Pacific time. They are current list prices, not benchmark-run historical prices.","Benchmark matching candidates are keys supplied by the benchmark researcher, pending that researcher's cohort and configuration verification.","A high-effort benchmark score is not evidence of high-effort quality at low-effort cost.","Use total billed output, including thinking/reasoning tokens; visible response length alone understates cost.","Equal token counts are hypothetical workload scenarios. Actual tokenization, reasoning, and retries differ by model.","Cache writes and storage are additional cost dimensions. Default caching off unless these are modeled.","No inference API calls were made. No measured latency, live availability, or throughput is asserted.","Null long_context means no separate long-context tier was listed on the cited page; token limits still apply.","Google Gemini 3.8 Flash prices are scheduled to double January 1, 2027; surface that expiry.","Anthropic US inference geography can add 10%; omitted from the base global scenario."],"billing_sources":[{"url":"https://developers.openai.com/api/docs/guides/reasoning","supports":"reasoning tokens are billed output"},{"url":"https://platform.claude.com/docs/en/build-with-claude/extended-thinking","supports":"thinking token usage is part of billed output"},{"url":"https://ai.google.dev/gemini-api/docs/pricing","supports":"Google output pricing includes thinking"}]}