MiMo-V2.5-Pro introduces 1.02T total parameters (up from 310B in V2.5) with 42B active parameters, extends context to 1M tokens, and adds hybrid attention architecture with sliding window and global attention patterns. The model achieves 99.6% on GSM8K and maintains coherence at extreme context lengths.
Xiaomi has released MiMo-V2.5-Pro, an open-source Mixture-of-Experts model with 1.02 trillion total parameters and 42 billion active parameters. The model supports up to 1 million tokens context length and claims 99.6% on GSM8K and 86.2% on MATH benchmarks.
Xiaomi released MiMo-V2.5-Pro on April 22, 2026, its flagship model featuring a 1,048,576 token context window and pricing at $1 per million input tokens and $3 per million output tokens. According to Xiaomi, the model ranks highly on ClawEval, GDPVal, and SWE-bench Pro benchmarks, designed for autonomous completion of professional tasks requiring thousands of tool calls.