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Phi-4-mini-flash-reasoning

MicrosoftOpen WeightsPending Human Review

Phi-4-mini-flash-reasoning is an MIT-licensed open-weight model in Microsoft’s Phi family. A new SambaY architecture uses state-space modeling and gated memory sharing to improve decoding efficiency for compact mathematical reasoning. Weights and sample inference code are available on Hugging Face, with deployment through supported local runtimes or hosted platforms. This checkpoint is a static trained model; accuracy and language coverage vary by task. Small model efficiency should not be taken as equal capability to much larger generalist systems.

2025-07-09
3.8B
Hybrid SambaY: state-space layers and Differential Attention
MIT

Specifications

Parameters
3.8B
Architecture
Hybrid SambaY: state-space layers and Differential Attention
License
MIT
Context Window
65,536 tokens
Type
text
Modalities
text

Benchmark Scores

Advanced Specifications

Model Family
Phi
API Access
Available
Chat Interface
Not Available

Capabilities & Limitations

Capabilities
instruction followingreasoningcoding
Known Limitations
May hallucinate or produce incorrect reasoningPrimarily English evaluation and training
Notable Use Cases
local assistantsresearchdomain adaptation

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