System One Bench

Head to head

d1 vs GPT-6 Luna Decisions

d1 scores 82.7 and GPT-6 Luna Decisions 76.0 on the System One Index. d1 is more accurate on 14 of 16 text datasets, GPT-6 Luna Decisions on 2. Same cases, same request, same scorer.

Overall

d1GPT-6 Luna Decisions
System One Index82.776.0
English81.375.2
Arabic83.978.8
Vision Index–81.6
Calibration error2.9%9.8%
Median latency188 ms215 ms
Cost per 1,000 calls$0.015$0.040

Text datasets, accuracy

d1GPT-6 Luna Decisions
AG News English90.087.5
SST-2 English95.593.5
SST-5 English56.561.5
DAIR Emotion English63.558.5
Banking77 English89.077.5
BoolQ English90.085.5
XNLI English English91.366.7
Typed decisions English74.571.0
XNLI French French84.762.0
XNLI Arabic Arabic80.054.0
MASSIVE scenario Arabic73.066.0
MASSIVE intent Arabic90.084.5
OSACT4 offensive Arabic95.593.5
Tweet sentiment Arabic67.580.0
MIRACL rerank Arabic90.586.0
MIRACL pairwise Arabic91.087.5

Image datasets, accuracy

d1GPT-6 Luna Decisions
SST-2, as an image–88.5
Arabic sentiment, as an image–67.0
Oxford-IIIT Pet–87.0
VQAv2 yes/no–80.5
CountBench–85.0

Model pages: d1 · GPT-6 Luna Decisions. Latency for API models is the median per call through OpenRouter, timed from one machine.