Grok 4.6 scores 61 on Artificial Analysis Intelligence Index

Grok 4.6 scores 61 on the Artificial Analysis Intelligence Index, up 5 points from Grok 4.5 and in line with GPT-5.6 Sol, behind Claude Opus 5 (63). It costs $2/$6 per 1M tokens, 60%+ below Claude Opus 5, with strong agentic performance (GDPval-AA Elo 1753).