aiqbench analysis

Nace.AI's release of Drex 1.5 marks a significant advancement in decision-making models by outputting option probabilities directly within a single forward pass, eliminating the need for separate reasoning and scoring steps. This architecture offers a more efficient approach to complex problem-solving compared to traditional text-generation-only models, particularly given its ability to handle long contexts up to 128K tokens. The open-source nature of this 9B parameter model provides researchers with a practical tool for evaluating probabilistic decision capabilities without the heavy computational cost of larger systems.