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GPT-6 Luna

OpenAI · 2026-09-22

GPT-6 Luna is OpenAI's September 22, 2026 model for fast coding and agentic work. It accepts text and images and supports none, low, medium, high, xhigh, and max reasoning effort, with medium as the default.

Benchmark scores

BenchmarkScore
AA-Briefcase v1.1 Elo1299
AA-LCR v1.183.3
AA-Omniscience Index0.7
ALE-Bench1791
Artificial Analysis Intelligence Index v4.3.237.3
Artificial Analysis Omniscience Accuracy44.2
Artificial Analysis Omniscience Hallucination Rate76.7
AutomationBench 1.0.6 (Zapier)20.7
AutomationBench-AA 1.0.653.2
Capability158.4
CritPt (avg@5)19.4
FrontierCode 1.1 Extended - Pass Rate62.3
FrontierCode 1.1 Extended - Score56.1
FrontierCode 1.1 Main - Pass Rate47.8
FrontierCode 1.1 Main - Score42.4
GDP.pdf (Artificial Analysis, All-pass)20.4
GDP.pdf (Artificial Analysis, Mean Criteria)69.8
GDPval-AA v2.11367
Humanity's Last Exam (Text-Only)38.5
Medical Long Context Reasoning (MLCR-AA)16.1
MLCR-AA Accuracy (Judged Responses)93.8
MLCR-AA Completeness (Judged Responses)16.5
MLCR-AA Conciseness97.8
MMMU Pro75.5
Next.js AI Agent Evaluations87.0
SciCode 1.0.1 (Artificial Analysis)54.6
Terminal-Bench 4.0 (Artificial Analysis)12.6
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