Claude Opus 5.5 Tops RSI Index, Beats Human Baseline

Vals AI's RSI Index shows Claude Opus 5.5 ranking first and becoming the first model to beat the published LM Training reference line and one human baseline, prompting the full-RSI forecast to move up to July 2027.

2026-09-23 ~ 2026-09-23 · 3 related posts

• Claude Opus 5.5 tops ValsAI's RSI Index, first model to beat LM Training reference — scaling01 · 2026-09-23
• Vals AI RSI Index: Opus 5.5 Beats Human Baseline on One of Five Tasks, Pulling RSI Estimate to July 2027 — ResultBackground2450 · 2026-09-23
• Claude Opus 5.5 tops RSI Index, pushing Vals AI's full-RSI timeline to July 2027 — burny_tech · 2026-09-23