Nace AI open-sources Drex 1.5, a sub-10B decision-making model reportedly ranking first on Decision Index

Posts describe Drex 1.5 as an open-source decision model with fewer than 10B parameters and a 128K context window. One reports a 58.28 score and first place on the Decision Index, alongside a Twitch chat moderation demo that checked 8,500 messages. Microsoft separately introduced Microsoft-Decision-1, saying it is testing that model for incident response, quality control and scientific discovery.