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OpenAI

GPT-6 Luna

ReasoningClosed weights
Intelligence
32.9
Rank 110 of 744 measured models
Output speed
120 t/s
Rank 130 of 403 measured models
Price/1M
$0.20
Rank 161 of 659 measured models
Context window
1M
Rank 84 of 1199 measured models
Cost per task
$0.029
Rank 28 of 193 measured models

GPT-6 Luna (High) scores 32.9 on the Artificial Analysis Intelligence Index, ranking 110th of 744 measured models. The closest models on this index are Gemini 3.5 Flash (32.6), GPT-5.3 Codex (Xhigh) (32.5), and Motif 3 (Beta) (32.3). At $0.20 per million tokens (3:1 input/output blended price), it is cheaper than Gemini 3.5 Flash ($3.38) and GPT-5.3 Codex (Xhigh) ($4.81). With an output speed of 120 t/s, it is faster than GPT-5.3 Codex (Xhigh) (98.5 t/s), slower than Gemini 3.5 Flash (177 t/s).

Artificial Analysis Indices
High
Intelligence32.9
Rank 110 of 744 measured models
Reasoning levels
Each point is a reasoning level of this model: more reasoning often raises the score but costs more. Select a point to open that level.
Intelligence Indexmost efficient ↗Cost per task
Capability indexes
Performance in specific industries, measured by Artificial Analysis
Finance & Accounting36.4
Rank 96 of 218 measured models
Strategy & Ops41.2
Rank 84 of 218 measured models
Legal35.4
Rank 98 of 218 measured models
Engineering31.8
Rank 104 of 217 measured models
Economics40.0
Rank 111 of 225 measured models
Decision Index
GPT-6 Luna (High) · Artificial Analysis
Decision Index59.1Rank 11 of 26 measured models
AA-Omniscience-Decision · accuracy69.6
AA-Omniscience-Decision · non-hallucination3.3
HLE-MultiChoice32.4
When2Call78.6
WildGuardTest88.9
Cost per 1M tasks$234.32
Average time per task1.8 s
Standard Benchmarks
HLE32.9%
Rank 140 of 664 measured models
SciCode50.3%
Rank 105 of 231 measured models
AA-LCR79.3%
Rank 96 of 575 measured models
Terminal-Bench v44.5%
Rank 102 of 218 measured models
Models at a similar level
The closest models on the Intelligence Index, one configuration per family.

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