News topic
decision-models
October 13, 2026
Perplexity's pplx-decider v1.1 lifts Decision Index to 61.56
Perplexity's pplx-decider v1.1 raised its Decision Index score from 56.4 to 61.56; the 26B model needs authenticated Hugging Face access and about 49 GiB for weights plus working memory.
61.56 reported Decision Index score26B model parameters49 GiB reported weights plus working memory
October 12, 2026
Nace opens Drex 1.5 for probability-based option scoring
Nace's Drex 1.5 returns a probability for each option in one pass and scored 58.28 on Nace's Decision Index; it is a direct alternative to asking a chat model to choose.
1 forward pass for an option score58.28 Drex score on Decision Index 0.2.171 models on that index
