WhichAI / Models / GPT-6 Luna

GPT-6 Luna

· verified October 3, 2026

public paid api reasoning vision long-context value

Provider

Statuspublic

AA Intelligence Index38.1 (official, read October 3, 2026)

Released2026-09-22

Context window1.05M

ModalitiesText + image + files

API price $/1M (in / out)$0.1 / $0.5 (OpenRouter)

Speedn/a

AccessAPI $0.1/$0.5 per 1M tokens on OpenRouter · listed September 22, 2026

In one line

GPT-6 Luna by OpenAI, measured by Artificial Analysis at 38.1 on the Intelligence Index. Added to WhichAI automatically from live data on October 3, 2026: no editorial review yet, so judge it by the numbers, not by a verdict. OpenRouter's description: “GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol.”

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Claude Sonnet 5 (Anthropic) · AA 38.2FREE tier of claude.ai · API
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GPT-5.5 (OpenAI) · AA 38.4Free (limited messages) · Plus $20/mo · Go ~$8/mo · API

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Artificial Analysis Intelligence Index, official scale (the number published on artificialanalysis.ai), relayed by OpenRouter and refreshed automatically: last read October 3, 2026. 97 models carry a current official measurement. A value marked ~ is converted from an earlier snapshot because no current measurement is published; an unmeasured model is never ranked. Context, price, modality and listing dates come from the public OpenRouter model list (refreshed automatically on the live site; static copy retrieved October 3, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (Model guide and About > Methodology).