OpenAI

GPT-6 Luna

An efficient reasoning model for focused, high-volume tasks, with text and image input, a 1.05M-token context window, and adjustable reasoning effort.

ActiveReleased September 22, 2026Knowledge cutoff May 18, 2026

Source: Official model specifications and supported features, API release date: September 22, 2026, 1024-token cache minimum and default 30-minute minimum lifetime, Reasoning token billing, Pricing, context tiers, and service tiers, Azure OpenAI pricing

Price per 1M tokens
$0.1 in / $0 out

Decision pricing

Every billing leg from the live catalog, in USD per 1M tokens.

Billing legStandardLong context
Input$0.1 / M$0.2 / M
Output$0 / M—

Long-context rates apply above 272,000 input tokens.

Cost calculator

Estimate costs using the decision rate card above.

Estimated monthly cost
$20.00
at current list prices
Fresh input$20.00
Output$0.00
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Provider

Where this model runs, and what it charges.

PlatformRegionInput / MOutput / MBatchAccess
OpenAI
$0.1$0-First-party API

Some hosts price by region. Shown rates match the selected region.

Price history

Has this model gotten cheaper or more expensive?

No changePriced at $0.1 / $0 per 1M since October 12, 2026.

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Rates are generated from SuperPenguin's live pricing catalog.