System One Bench

Head to head

Clef vs Decider Flash V1.2

Clef scores 81.6 and Decider Flash V1.2 81.9 on the System One Index. Clef is more accurate on 8 of 16 text datasets, Decider Flash V1.2 on 8. Same cases, same request, same scorer.

Overall

ClefDecider Flash V1.2
System One Index81.681.9
English80.680.0
Arabic83.083.3
Vision Index78.177.5
Calibration error2.2%1.8%
Median latency310 ms104 ms
Cost per 1,000 calls$0.116$0.005

Text datasets, accuracy

ClefDecider Flash V1.2
AG News English90.589.0
SST-2 English97.095.0
SST-5 English51.554.0
DAIR Emotion English58.557.0
Banking77 English95.590.5
BoolQ English91.089.0
XNLI English English88.792.7
Typed decisions English72.273.0
XNLI French French80.088.0
XNLI Arabic Arabic78.085.3
MASSIVE scenario Arabic88.070.5
MASSIVE intent Arabic89.586.0
OSACT4 offensive Arabic89.590.5
Tweet sentiment Arabic58.071.5
MIRACL rerank Arabic89.088.5
MIRACL pairwise Arabic89.090.5

Image datasets, accuracy

ClefDecider Flash V1.2
SST-2, as an image95.593.5
Arabic sentiment, as an image35.035.0
Oxford-IIIT Pet82.584.0
VQAv2 yes/no87.587.5
CountBench90.087.5

Model pages: Clef ยท Decider Flash V1.2. Latency for API models is the median per call through OpenRouter, timed from a cloud server with 8 calls in flight.