Microsoft · Phi line · lightweight · open weights
Phi-4-reasoning-vision was released by Microsoft on March 4, 2026, as an open-weights lightweight model in the Phi line.
A 15B open-weight Phi model built on Phi-4-reasoning that reads images and mixes quick answers with step-by-step reasoning, aimed at visual math and science and at finding elements on computer and phone screens.
Compared with Phi-4-multimodal · comparison chosen by Microsoft
Solves 3 in 4 math problems that come with charts, figures or diagrams
MathVista (mini) — math questions about images, charts and figures
75.2%
▲ up from 50.5% for Phi-4-multimodal in Microsoft's table · +24.7 points
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Phi-4-reasoning-vision is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.
Latest: Phi-4-reasoning-vision · Mar 4, 2026
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