Gemini 4 Carbon vs Claude Opus 5.5 vs GPT-6 Astra vs Grok 4.7
Google DeepMind's Gemini 4 Carbon, announced October 28, 2026, took the top spot on Artificial Analysis's Intelligence Index v5 with a score of 59, one point above Claude Opus 5.5 at 58, according to the independent eval…