AIGrok 4.5 Tops Frontier Models for Speed and CostGavin Baker and Elon Musk share X posts on model testing results.digg it—5 Sources, 95d ago, first seen 95d agoCombined views4.8M5 Sources, first seen 95d ago6.5K likesCombined views4.8M5 Sources, first seen 95d ago6.5K likes