Phi-4 Mini Flash Reasoning
Phi-4 Mini Flash Reasoning is a mathematics-focused release with a 64K context. It explores a different architecture from the dense Phi-4 Mini Reasoning checkpoint, so the similar names do not identify interchangeable model files.
What distinguishes this release
The release describes the SambaY architecture and links its own inference integrations. Its purpose is efficient reasoning; the model card's context is half the 128K listed for Phi-4 Mini Reasoning.Phi-4 Mini Flash Reasoning official model card
Build the task around its input and output
Practical guidance. Check support for this exact architecture in the intended inference engine before selecting a weight format. A loader that accepts another Phi model may not support this checkpoint. Include prompt processing and a complete reasoning response in the latency measurement.
Review the result in its intended setting
Practical guidance. For a maths assistant, compare completed and verified solutions at the same input size and output budget. A faster first token is not enough if the answer takes substantially more tokens or fails to complete within the application's deadline.
Specifications & access
| Detail | Value and conditions |
|---|---|
| Access | Downloadable |
| Model identifiers | microsoft/Phi-4-mini-flash-reasoning |
| Context window | 65,536 tokens Published checkpoint context; serving engines may impose lower limits Phi-4 Mini Flash Reasoning official model card |
| Model size | 3.8B hybridPhi-4 Mini Flash Reasoning official model card |
| Input and output | Text input and text outputPhi-4 Mini Flash Reasoning official model card |
| Weight license | MITPhi-4 Mini Flash Reasoning official model card |