Xiaomi MiMo-V2-Pro vs GPT-5.4 in 2026: China’s Stealth Trillion-Parameter Model Takes on OpenAI’s Flagship
A Xiaomi AI model appeared anonymously on OpenRouter on March 11, topped the usage charts, processed 1 trillion tokens, and beat GPT-5.4 on Terminal-Bench 2.0 (86.7% vs 75.1%) — before anyone knew who built it. Full breakdown inside.