Xiaomi: MiMo-V2.6-Pro-UltraSpeed

The Xiaomi MiMo-V2.6-Pro-UltraSpeed model, released on September 21, 2026, is positioned as a fast-speed variant of Xiaomi's flagship foundation model. Despite its "UltraSpeed" designation, the model exhibits longer response times, ranking in the 7th percentile across benchmarks, indicating it performs among the slower models in terms of speed. Its pricing tends to be at premium levels, placing it in the 17th percentile for cost competitiveness. A significant strength of MiMo-V2.6-Pro-UltraSpeed is its exceptional reliability, boasting a 99% success rate across benchmarks, signifying minimal technical failures and consistent operational stability. In terms of performance across categories, the model demonstrates high accuracy in General Knowledge (99.0%), Coding (94.0%), and Reasoning (98.0%), suggesting strong capabilities in these areas. It also performs well in Hallucinations (98.0% accuracy) and Ethics (99.0% accuracy), indicating a robust understanding of factual boundaries and ethical principles. Instruction Following (72.0% accuracy) is a relative weakness, though still respectable. The model's primary weakness lies in its slow processing durations across all benchmarks, consistently ranking in the lower percentiles for speed, despite its name. Its premium pricing also presents a competitive challenge.