GPT-6 Luna specs, prices, where it runs and its benchmark standing

Name: GPT-6 Luna
Author: OpenAI

closed weights · top 10 on 1 of 11 · released Sep 22, 2026

Provider: OpenAI
Release date: Sep 22, 2026; Boards
Parameters: Not disclosed by OpenAI
Modalities: Text, Image, Files to Text; OpenRouter
License: Proprietary; LMArena
Context window: 1.05M tokens; Pricing
Pricing: $0.1 in / $0.5 out per 1M tokens; All prices
Hosting: 8 priced API routes · Azure OpenAI (28 regions) · OpenRouter; Pricing Regions
Weights: Closed weights
Benchmarks: 11 boards captured

Rank	Board	Category	Score	Of
4	OpenRouterUsage · as “openai/gpt-6-luna-20260922”	Usage	7.2T tok	18
13	Search ArenaAgents and tools · as “GPT-6 Luna (Max)”	Agents and tools	1,210	40
24	AA IntelligenceReasoning · as “GPT-6 Luna (Max)”	Reasoning	27.9	50
28	AA SpeedSpeed · as “GPT-6 Luna (max)” Unverified	Speed	13 tok/s	43
32	Epoch ECIReasoning · as “GPT-6 Luna”	Reasoning	156.7	100
37	WebDev ArenaCoding · as “GPT-6 Luna (Max)”	Coding	1,578	82
38	ARC-AGI-2Reasoning · as “GPT-6 Luna (Max)”	Reasoning	59.3%	92
42	GPQA DiamondReasoning · as “gpt-6-luna_max”	Reasoning	90.5%	100
48	LiveBenchReasoning · as “gpt-6-luna-max”	Reasoning	72.0%	64
57	Vision ArenaVision · as “GPT-6 Luna (Max)”	Vision	1,235	85
82	Text ArenaChat · as “GPT-6 Luna (Max)”	Chat	1,440	84