The newest Phi model is Phi-4-reasoning-vision, released on March 4, 2026. It has been 234 days since then, 3.1 times the line's usual gap of 76 days: a much longer wait than usual.
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
Every Monday, only when something shipped: the AI models that came out, what each one changed, and which lines are due next.
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Newest first — what each version changed versus the one before, in Microsoft's own numbers.
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