United States securities and exchange commission logo

                          September 15, 2022

       Timothy Lu, M.D., Ph.D
       Chief Executive Officer
       Senti Biosciences, Inc.
       2 Corporate Drive, First Floor
       South San Francisco, CA 94080

                                                        Re: Senti Biosciences,
Statement on Form S-1
                                                            Filed September 12,
                                                            File No. 333-267390

       Dear Dr. Lu:

              This is to advise you that we have not reviewed and will not
review your registration

               Please refer to Rules 460 and 461 regarding requests for
acceleration. We remind you
       that the company and its management are responsible for the accuracy and
adequacy of their
       disclosures, notwithstanding any review, comments, action or absence of
action by the staff.

                                                        Please contact Jason
Drory at 202-551-8342 with any questions.


                          Division of Corporation Finance

                          Office of Life Sciences
       cc:                                              Swetha Gopalakrishnan,