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Verified AI pricing for better technical decisions.

Official sources onlyPrices in USD per 1M tokens
OA
OpenAI

GPT-5.6 Luna

gpt-5.6-luna · Last successfully verified Sep 9, 2026, 01:36 AM

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STALEThis historical quote is outside the configured verification window. Check the official source before use. Last successfully verified 2026-09-09 UTC.
Input$0.20per 1M tokens
Output$1.20per 1M tokens
Cached input$0.02per 1M tokens

Cost estimates are paused until this model has a current verified official quote.

Rates

Pricing tiers

Standard, batch and long-context rates from the official source.

Price typeToken rangeInput / 1MCached / 1MOutput / 1M
Standard · STALE≤ 271,999$0.20$0.02$1.20
Long context · STALE≥ 272,000$0.40$0.04$1.80
History

Pricing history

Verified changes to standard input and output rates.

No verified pricing changes recorded yet.

Changes will appear here after a verified update.
Model details

Specifications

Context window1,050,000
Maximum output128,000
ModalitiesText, Vision
ReasoningSupported
Tool callingNot published
Structured outputNot published
Alternatives

Compare with similar models

Open comparison

Alternatives above are nearest by combined input/output rate, not a claim of equivalent model quality or capabilities.

Curated price comparisons

Selected for a concrete pricing decision—not all possible model pairs.

  • GPT-5.6 Luna (OpenAI) vs Gemini 3.1 Flash-Lite (Google)
  • GPT-5.6 Luna (OpenAI) vs DeepSeek V4 Flash (DeepSeek)
  • GPT-5.6 Luna (OpenAI) vs Mistral Small 4 (Mistral AI)
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Provenance

Official source

Every price is tied to the official page and an immutable source snapshot. A successful HTTP check alone does not verify a price.

Official pricing URL
Open source
Last source check
Oct 23, 2026, 12:19 AM
Snapshot captured
Sep 4, 2026, 06:21 PM
Last price verification
Sep 9, 2026, 01:36 AM
Snapshot
d71a4bb908d6