# Artificial Analysis releases Decision Index v2 with a calibration-based score

> Original title: Introducing the Artificial Analysis Decision Index v2

- Source: Artificial Analysis Articles
- Published: 2026-11-08T05:00:00.000Z
- Bad Influence: https://badinfluence.news/items/kktm6sb699rxnr58sa82k8hl4
- Original: https://artificialanalysis.ai/articles/decision-index-v2

## Summary

Artificial Analysis released Decision Index v2, which moves 45% of its weight onto private datasets and adds a Decision Score that rewards correct answers and calibrated confidence. Drex Max v1.1 from Nace AI, GLiDE v1.2 from Fastino Labs and Mammoth 27B from Baseten sit within one point at the top. The post says Claude Haiku 5.5 (Max) scores 77 and GPT-6 Luna (Max) scores 76 but cost about 15 times more per 1M tasks than Drex Max v1.1.