MiMo V2.5 Pro
V2.5 Pro is a text-only mixture-of-experts release for software engineering and long agent runs. Its published weights remain available under MIT.
The large Pro release was still text-only
The card describes three multi-token-prediction layers, FP8 pretraining and a 27-trillion-token training corpus.MiMo-V2.5-Pro official model card
Xiaomi also publishes MiMo-V2.5-Pro-FP4-DFlash, the package behind its UltraSpeed offering. It combines an FP4-quantized backbone with a BF16 draft model. The draft model proposes a block of tokens, which the backbone checks together. This is a deployment package of V2.5 Pro, rather than another foundation-model generation.MiMo V2.5 Pro FP4 and DFlash deployment package
Do not infer vision support from the newer Pro
Practical guidance. The same family name can cover different modalities across generations. Keep document images on a separate visual path when evaluating these text weights. Compare the final task result with V2.6 Pro, not just whether both accept the same API syntax.
Specifications & access
| Detail | Value and conditions |
|---|---|
| Access | Downloadable |
| Model identifiers | MiMo-V2.5-Promimo-v2.5-proMiMo-V2.5-Pro-FP4-DFlash |
| Context window | 1,000,000 tokens Post-trained V2.5 Pro context capacity. MiMo-V2.5-Pro official model card |
| Size | 1.02 trillion total parameters, 42 billion active per token.MiMo-V2.5-Pro official model card |
| Attention | Sliding-window and global attention are interleaved at a 6:1 ratio, with a 128-token sliding window.MiMo-V2.5-Pro official model card |
| API retirement | The original model ID stopped working on 21 October 2026 at 10:00 UTC+8. The replacement is V2.6 Pro.MiMo model retirement and replacement schedule |
Related models
- MiMo V2.6 Pro
Xiaomi · MiMo V2.6
MiMo V2.6 Pro accepts text, images, video and audio, then returns text.
Launch date not confirmedAPI · Downloadable · Provider product - MiMo V2.5 Pro Base
Xiaomi · MiMo V2.5
A large pretrained text model in the MiMo V2.5 Pro family with a 256K context.
Launch date not confirmedResearch releaseDownloadable