GPT-5.4 is now on the Artificial Analysis Intelligence Index - AA-Intelligence Index score of 57, tied with Gemini 3.1 Pro - Highest score on CritPt with 20% - GPT-5.4 uses about 55.8% more tokens than GPT-5.3-Codex to run AA-Intelligence Index - GPT-5.4 costs about 78.4% more than GPT-5.3-Codex to run AA-Intelligence Index