Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the use in this Registration Statement on Form S-1 of our report dated November 12, 2020 relating to the financial statements of Sensei Biotherapeutics, Inc. We also consent to the reference to us under the heading “Experts” in such Registration Statement.
/s/ Deloitte & Touche LLP
Baltimore, Maryland
January 15, 2021
