Wire · technology
Nace AI Open-Sources Drex 1.5: A 9B Decision Model That Scores Options, Not Text
◆ Sectors
◆ Geography
◆ Source
◆ Verified
Fusion42 · 10 October 2026 · Fusion42 review
Nace.AI has open-sourced Drex 1.5, a 9 billion parameter decision model that scores fixed options instead of generating text. Drex 1.5 achieves top performance on the public Decision Index benchmarks, supports long document contexts up to 131,072 tokens, and runs efficiently on a single GPU or Apple silicon CPU with open weights available.
This Wire brief sits within Fusion42's coverage of AI Infrastructure and AI Agents.
◆ ◆ The Wire takeaway
You can now deploy a top-tier open decision model on a single GPU or Apple silicon, unlocking efficient handling of long-context tasks without text generation overhead. This shifts focus to building applications that require option scoring rather than text output, opening unique backend and agent workflow opportunities.
◆ Coverage
1 source · 10 Oct 2026
◆ Related on Wire
◆ Topics