Ref. No. 863/41-1093 A
In the name of Allah the most Gracious the most Merciful
The answer to your question is as follows:
Allamah Jarullah Zamakhshari was Hanafite in school of thought and according to his belief he was Mu’tazilite.
الزمخشری جاراللہ: کان اماما فی التفسیر والنحو واللغۃ والادب واسع العلم کبیرالفضل متفننا فی علوم شتی معتزلی المذھب متجاھرا بذلک۔ (معجم الادباء 6/2688)
And Allah knows best
Darul Uloom Waqf Deoband
This answer was collected from the official website of Darul Uloom Deoband Waqf. The institution is based in India and the answers are provided in accordance to the Hanafi Fiqh.