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Phi-4-reasoning-vision-15B

MicrosoftOpen WeightsPending Human Review

Phi-4-reasoning-vision-15B is an MIT-licensed open-weight model in Microsoft’s Phi family. It adds visual perception to the Phi-4-reasoning backbone, supporting visual math, chart interpretation, screenshots, and image-conditioned 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.

2026-03-04
15B
Mid-fusion Phi-4-reasoning language model with SigLIP-2 vision encoder
MIT

Specifications

Parameters
15B
Architecture
Mid-fusion Phi-4-reasoning language model with SigLIP-2 vision encoder
License
MIT
Context Window
16,384 tokens
Type
multimodal
Modalities
textimage

Benchmark Scores

Advanced Specifications

Model Family
Phi
Finetuned From
Phi-4-reasoning
API Access
Available
Chat Interface
Not Available

Capabilities & Limitations

Capabilities
instruction followingreasoningmultimodal understanding
Known Limitations
May hallucinate or produce incorrect reasoningPrimarily English evaluation and trainingVision reasoning context is 16,384 tokens
Notable Use Cases
local assistantsresearchdomain adaptation

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