OpenAI Decisions API
OpenAIGPT-6 Luna's general-availability Decisions API discounts cached input.
OpenAI's generally available Decisions API is a direct endpoint for classification, routing, and rubric scoring. It returns typed answers and probabilities instead of generated text, and currently uses GPT-6 Luna.
OpenAI lists $0.10 per 1M uncached input tokens, $0.01 per 1M cached input tokens, and no output-token charge. Cache writes cost $0.125/M for a 30-minute lifetime or $0.25/M for 12 hours; the comparison schema does not represent cache-write fees. Regional processing premiums and long-context input multipliers apply. The Azure Retail Prices feed has no GPT-6 Luna Decisions meter, so this remains a Direct-only lane outside generative workload comparisons.
Pricing
per 1M tokens · USD / CHF| Model | Tier / Host | Context | Input | Cached | Output | Confidence |
|---|---|---|---|---|---|---|
GPT-6 Luna (Decisions API) Generally available at `/v1/decisions`. Uncached input costs $0.10/M, cached input $0.01/M, and output is free. Cache writes cost $0.125/M for 30 minutes or $0.25/M for 12 hours and are billed separately from this row. Regional processing premiums and long-context input multipliers apply. | Direct API OpenAI Decisions API | 1.1M | $0.10CHF 0.081 | $0.01CHF 0.008 | $0.00CHF 0.00 | official OpenAI's Decisions API guide, checked 2026-10-23, marks `/v1/decisions` generally available and lists $0.10/M uncached input, no output-token charge, and cache pricing that matches standard GPT-6 Luna rates. OpenAI's API pricing page, checked 2026-10-23, lists GPT-6 Luna at $0.01/M cached input, $0.125/M for 30-minute cache writes, and $0.25/M for 12-hour writes. Regional processing premiums and long-context input multipliers apply. The GPT-6 Luna model page lists a 1,050,000-token context window. An Azure Retail Prices query for Azure OpenAI product meters containing `decision` returned zero rows on 2026-10-23, so no Foundry rate is inferred. |
Confidenceofficial published pagederived reconciled from billing †estimate pattern-inferred ‡
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