OpenAI
GPT-5.6 Luna (high)
Quality Score52.8
Value Score48.6
Reliability44.0
Cache Discount90%
Model specification
- Reasoning
- reasoning
- Input modalities
- text, image
- Output modalities
- text
- Context window
- 1M tokens
- Weights
- closed weights
Token prices USD per 1M tokens
- Input
- $0.200
- Output
- $1.20
- Cached Input
- $0.020
- Cached Output
- $0.250
- Cost per task
- $0.022
Capability
- Intelligence
- 47.0
- Coding
- 63.3
- Agentic
- 41.0
- Omniscience
- -12.0
- Correct
- 41.8%
- Blended price
- $0.174
Answer outcomes
Correct 41.8%Incorrect 53.8%Abstained 4.4%
Artificial Analysis benchmarks
- GDPval-AA v2
- 48%
- τ³-Banking
- 25%
- Terminal-Bench v2.1
- 70%
- SciCode
- 51%
- Humanity’s Last Exam
- 33%
- GPQA Diamond
- 89%
- CritPt
- 17%
- AA-Omniscience
- 44%
- AA-LCR
- 74%
Similar models
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- GPT-5.6 Luna (xhigh)OpenAIQuality Score 55.6Value Score 51.3
- GPT-5.6 Terra (low)OpenAIQuality Score 51.0Value Score 34.4
- GPT-5.3 Codex (xhigh)OpenAIQuality Score 58.6Value Score 39.0
- GPT-5.6 Terra (high)OpenAIQuality Score 58.6Value Score 40.1
- GPT-5.6 Luna (max)OpenAIQuality Score 57.3Value Score 53.2