The Model Index
Models/Labs/Microsoft
Lab · 7 models · since Dec 2023

Microsoft

Microsoft has 7 models on The Model Index, from Phi-2 (Dec 2023) to MAI-1-preview (28 Aug 2025). Its strongest is Phi-4, with an index score of 112 (GPT-4 = 100), rank 153 of 229. 6 have open weights.

7models tracked6 open · 1 closed
112index score of Phi-4#153 of 229 models
28 Aug 2025latest releaseMAI-1-preview
6current versions1 replaced by newer ones

Every modelnewest first

ModelReleasedWeightsIndex scoreInput $/MOutput $/MContext
MAI-1-preview28 Aug 2025Closed
not scored yet
–––
Phi-4-reasoning30 Apr 2025Open
not scored yet
–––
153Phi-412 Dec 2024Open
112
$0.070$0.1416K
195Phi-323 Apr 2024Open
94
–––
phi-3-mini 3.8B23 Apr 2024Open
not scored yet
–––
186WizardLM-2 8x22B15 Apr 2024Open
99
$0.62$0.6266K
Phi-2replaced12 Dec 2023Open
not scored yet
–––

Index score is fitted from independent evaluations and scaled so GPT-4 = 100; a striped bar is an estimate for a model not yet independently tested. Prices are list prices per million tokens.

Release history5 announcements

The Race →
DateReleaseKindSource
28 Aug 2025MAI-1-previewFlagshipno link
30 Apr 2025Phi-4-reasoningOpen weightshuggingface.co ↗
12 Dec 2024Phi-4Open weightsno link
23 Apr 2024Phi-3Open weightshuggingface.co ↗
12 Dec 2023Phi-2Open weightshuggingface.co ↗

Dates come from each lab's own announcement, linked where one exists.