GPT-5.6 Luna (medium)

July 9, 2026Last synced Aug 1, 2026, 12:17 AM

Human Frontier

—

Human-calibrated frontier signal, backed by Arena-style preference evidence and separate from raw AgMoBench benchmark composite scores.

Blended Price

$0.45/M

Input Price

$0.20/M

Output Price

$1.20/M

Speed

161 tok/s

TTFT

1.50s

Benchmark Scores

Intelligence Index

Performance Radar

GPT-5.6 Luna (medium)

Field Average

External Benchmarks

ARC-AGI-1

How GPT-5.6 Luna (medium) Compares

Axes

X Axis

Y Axis

Bubble Size

Filters

Blended Price (USD)$0.00 – $37.5

AgMoBench Overall≥ 1.8

Providers

ai2ai21-labsalibabaanthropicarceeawsazurebaidu

Show quadrants

anthropic

openai

mistral

azure

cohere

meta

ai21-labs

inclusionai

google

ai2

ibm

alibaba

upstage

nvidia

aws

kimi

nous-research

thinking-machines

minimax

stepfun

tencent

deepseek

zai

multiversecomputing

xiaomi

xai

deepcogito

sarvam

kwaikat

baidu

swiss-ai-initiative

bytedance_seed

inception

reka-ai

arcee

perplexity

Bubble size = Context Window

8191.00

2000000.00

Compare with other models

ARC-AGI-3 Public Demoarc_agi

v3 · public-demo · GPT-5.6 Luna (Medium) · effort medium · 1 attempt · 5x-human-baseline-median-per-level · arc-agi-3:public-demo · record v3_Semi_Private:openai-gpt-5-6-luna-medium

View run source

Source metadata

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  "modelType": "CoT",
  "modelsUrl": "https://arcprize.org/media/data/models.json",
  "modelGroup": "openai-gpt-5-6-luna",
  "modelNotes": null,
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  "upstreamModelId": "openai-gpt-5-6-luna-medium",
  "environmentCount": 25,
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  "upstreamDatasetId": "v3_Semi_Private",
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Evidence observed 2026-07-31

0.2 / 100

ARC-AGI-3 Public Demoarc_agi

v3 · public-demo · GPT-5.6 Luna (Medium) · effort medium · 1 attempt · 5x-human-baseline-median-per-level · arc-agi-3:public-demo · record v3_Semi_Private:openai-gpt-5-6-luna-medium

View run source

Source metadata

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  "modelGroup": "openai-gpt-5-6-luna",
  "modelNotes": null,
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Evidence observed 2026-07-31

0.2 / 100

ARC-AGI-3 Public Demoarc_agi

v3 · public-demo · GPT-5.6 Luna (Medium) · effort medium · 1 attempt · 5x-human-baseline-median-per-level · arc-agi-3:public-demo · record v3_Semi_Private:openai-gpt-5-6-luna-medium

View run source

Source metadata

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  "provider": "OpenAI",
  "modelType": "CoT",
  "modelsUrl": "https://arcprize.org/media/data/models.json",
  "modelGroup": "openai-gpt-5-6-luna",
  "modelNotes": null,
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Evidence observed 2026-07-30

0.2 / 100

ARC-AGI-3 Public Demoarc_agi

v3 · public-demo · GPT-5.6 Luna (Medium) · effort medium · 1 attempt · 5x-human-baseline-median-per-level · arc-agi-3:public-demo · record v3_Semi_Private:openai-gpt-5-6-luna-medium

View run source

Source metadata

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Evidence observed 2026-07-24

0.2 / 100

SWE-rebenchswe_rebench

vcontinuous-leaderboard · tasks-created:2026-05-15:2026-07-01 · GPT-5.6 Luna [medium] · harness swe-rebench-react@tools · 5 attempts · pass@1 · swe-rebench:standardized:128k-or-model-limit · provider GPT-5.6 Luna [medium]__tools · record GPT-5.6 Luna [medium]__tools:1778803200000:1782864000000

View run source

Source metadata

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Evidence observed 2026-07-01

43.6 / 100

SWE-rebenchswe_rebench

vcontinuous-leaderboard · tasks-created:2026-05-15:2026-07-01 · GPT-5.6 Luna [medium] · harness swe-rebench-react@tools · effort medium · 5 attempts · pass@1 · swe-rebench:standardized:128k-or-model-limit · provider GPT-5.6 Luna [medium]__tools · record GPT-5.6 Luna [medium]__tools:1778803200000:1782864000000

View run source

Source metadata

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  "instanceType": "model",
  "contextPolicy": "128k unless the model supports less",
  "attemptsPerTask": 5,
  "totalTokenUsage": 395521.6576576577,
  "modelReleaseDate": "2026-06-26",
  "scoreStandardError": 1.4693249036306386,
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  "modelReleaseTimestamp": 1782432000000,
  "standardContextTokens": 128000,
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  },
  "publishedTaskRangeTimestamp": {
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    "from": 1778803200000
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}

Evidence observed 2026-07-01

43.6 / 100