X @Elon Musk

Model Performance Improvement - Grok-4-fast-reasoning performance increased from 77.5% to 94.1% [1] - Grok-4-fast-non-reasoning performance increased from 77.9% to 97.9% [1] Potential Applications - The upgrades suggest significant ability increases in reasoning for potential agentic work [1] Industry Impact - The report highlights Grok as the fastest improving AI model [1]