XiaomiMiMo Unleashes MiMo-V2.5-Pro For Massive Local Text Tasks

MiMo-V2.5-Pro is an open-source language model built with a Mixture-of-Experts (MoE) design, handling up to one million tokens of input at once. It manages complex software workflows while keeping memory usage low.
The XiaomiMiMo team built this release along with MiMo-V2.5 for professionals running local reasoning jobs without cloud services. It processes large files by activating forty-two billion parameters from a one trillion pool.
Model Size: 1.02T parameters & VRAM GPU: requirements vary
Extended context handling with optimized routing
- Processes continuous input windows up to one million tokens without losing earlier details.
- Mixes global and local attention layers to cut memory storage by nearly seven times.
- Uses three lightweight prediction modules that triple standard text output speeds.
- Applies multi-teacher reinforcement training to maintain accuracy across thousands of tool calls.
Teams managing local automation pipelines can leverage this setup for parsing technical manuals or running extended debugging loops. The streamlined architecture allows operators to scale extended tasks without expanding current hardware setups.
Architecture choices and setup requirements
Creators prioritized stable performance across extended task chains instead of targeting isolated test metrics. They combined supervised tuning with domain-specific rewards before distilling those methods through on-policy guidance. Proper execution demands specific SGLang or vLLM configurations to manage the expert routing correctly.
The Xiaomi MiMo team noted they:
"strongly recommend deploying using the officially supported approach to get the latest best practices and optimal performance"
in their project documentation. Operators should also adjust sampling temperatures to prevent processing delays. Users with hefty rigs can download the files from the Hugging Face repository.