Nace AI Open-Sources Drex 1.5: A 9B Decision Model That Scores Options, Not Text Nace.AI has open-sourced Drex 1.5, a 9B decision model that returns a probability for every option in a single forward pass and reads up to 128K tokens. Drex 1.5 scores 58.08 on Decision Index 0.3.1. Nace.AI has open-sourced Drex 1.5, a 9B decision model that returns a probability for every option in 1 forward pass. It scores 58.08 on Decision Index 0.3.1 and reads up to 128K tokens. The post Nace AI Open-Sources Drex 1.5: A 9B Decision Model That Scores Options, Not Text https://www.marktechpost.com/2026/10/09/nace-ai-open-sources-drex-1-5-a-9b-decision-model-that-scores-options-not-text/ appeared first on MarkTechPost https://www.marktechpost.com .