X @Elon Musk

AI Model Performance Improvement - Grok 4.1 Fast demonstrates an approximate 3X increase in long-context accuracy, addressing the challenge of AI models losing focus in extended conversations [1] - Accuracy improved from 21% to 57%, representing an approximate 2.8x increase [2] - Reliability increased from 22% to 67%, showing an approximate 3x improvement [2] Key Features of Grok 4.1 Fast - Grok 4.1 Fast is specifically trained with "Long-Horizon" learning to maintain focus across 2 million-token conversations [1] - Grok 4.1 Fast aims to provide more reliable performance in tasks such as building support agents, debugging codebases, or writing novels [1]