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MiMo V2 Pro

XiaomiProprietaryPending Human Review

MiMo V2 Pro is Xiaomi’s hosted flagship for long-running software engineering and agent tasks. Its trillion-scale sparse backbone activates approximately 42B parameters and combines sliding-window and global attention. The text model supports up to 1M tokens and structured tool use. Anonymous evaluation names such as Hunter Alpha are aliases, rather than separate releases. Xiaomi provides API and chat access; the V2 Pro weights were not publicly released alongside the later V2.5 family.

2026-03-18
Over 1T total, approximately 42B active
Hybrid-attention Mixture of Experts
Proprietary

Specifications

Parameters
Over 1T total, approximately 42B active
Architecture
Hybrid-attention Mixture of Experts
License
Proprietary
Context Window
1,048,576 tokens
Type
text
Modalities
text

Benchmark Scores

Advanced Specifications

Model Family
MiMo
API Access
Available
Chat Interface
Available

Capabilities & Limitations

Capabilities
text generationreasoning
Known Limitations
Provider-reported evaluations need application-specific validationSparse or long-context serving can require substantial memoryCustom license conditions apply
Notable Use Cases
hosted assistantsdocument and code workflowslanguage-model research
Tool Use Support
Yes

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