Teams running very long agent tasks get open weights for a trillion-parameter model, though API prices could not be confirmed.

Kenning's take

What it does

MiMo-V2.5-Pro is Xiaomi's most capable model, a 1.02 trillion parameter mixture-of-experts model with 42 billion active parameters and a 1M-token context window. Xiaomi says it can keep long tasks going across more than a thousand tool calls, and shows it building a full compiler and a desktop video editor on its own. It is on Xiaomi's API platform and AI Studio, and the weights are on Hugging Face under the MIT licence.

  • 1.02T total, 42B active parameters
  • 1M token context window
  • Long tasks over 1,000+ tool calls
  • Better instruction following in agent workflows
  • MIT-licensed weights on Hugging Face

Who it suits. Developers running long coding and agent workflows who want an open model.

Key facts

Category
AI models
Made by
Xiaomi
Based in
China
Released
27 April 2026
How to get it
through Xiaomi's MiMo API platform (model mimo-v2.5-pro) and AI Studio, and as open weights on Hugging Face
Works on
API, Web, self-hosted
Free plan
Free MIT-licensed weights

FAQ

When was MiMo-V2.5-Pro released?

Xiaomi released and open-sourced it on 27 April 2026.

Is MiMo-V2.5-Pro open source?

Yes, Xiaomi published the weights on Hugging Face under the MIT licence.

How big is MiMo-V2.5-Pro?

1.02 trillion total parameters with 42 billion active, and a 1M-token context window.

Facts from the maker's own pages and the sources listed. Checked 2026-10-11.