OpenAI
GPT-5.6 Terra (medium)
Quality Score55.6
Value Score37.9
Reliability47.4
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
- $2.00
- Output
- $12.00
- Cached Input
- $0.200
- Cached Output
- $2.50
- Cost per task
- $0.119
Capability
- Intelligence
- 46.8
- Coding
- 64.7
- Agentic
- 39.1
- Omniscience
- -5.1
- Correct
- 44.6%
- Blended price
- $1.74
Answer outcomes
Correct 44.6%Incorrect 49.7%Abstained 5.7%
Artificial Analysis benchmarks
- GDPval-AA v2
- 45%
- τ³-Banking
- 26%
- Terminal-Bench v2.1
- 72%
- SciCode
- 50%
- Humanity’s Last Exam
- 33%
- GPQA Diamond
- 87%
- CritPt
- 17%
- AA-Omniscience
- 47%
- AA-LCR
- 70%
Similar models
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- 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
- GPT-5.6 Terra (low)OpenAIQuality Score 51.0Value Score 34.4