OpenAI
GPT-5.6 Luna (Non-reasoning)
Quality Score32.2
Value Score29.1
Reliability37.5
Cache Discount90%
Model specification
- Reasoning
- non-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
- $0.012
Capability
- Intelligence
- 26.8
- Coding
- 39.3
- Agentic
- 22.2
- Omniscience
- -24.9
- Correct
- 28.6%
- Blended price
- $0.174
Answer outcomes
Correct 28.6%Incorrect 53.5%Abstained 17.8%
Artificial Analysis benchmarks
- GDPval-AA v2
- 29%
- τ³-Banking
- 10%
- Terminal-Bench v2.1
- 39%
- SciCode
- 40%
- Humanity’s Last Exam
- 7%
- GPQA Diamond
- 65%
- CritPt
- 0%
- AA-Omniscience
- 38%
- AA-LCR
- 39%
Similar models
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- GPT-5.6 Sol (Non-reasoning)OpenAIQuality Score 56.7Value Score 32.3
- GPT-5.5 Instant (June 2026)OpenAIQuality Score 44.5Value Score 24.8
- GPT-5.6 Luna (low)OpenAIQuality Score 42.2Value Score 37.7