Exhibit 23.1
Independent Registered Public Accounting Firm’s Consent
We consent to the inclusion in this Registration Statement of AltC Acquisition Corp. (“the Company”) on Form S-1, File No. 333-254263, of our report dated March 15, 2021, which includes an explanatory paragraph as to the Company’s ability to continue as a going concern, with respect to our audit of the financial statements of AltC Acquisition Corp. as of March 31, 2021 and for the period from February 1, 2021 (inception) through March 31, 2021, which report appears in the Prospectus, which is part of this Registration Statement. We also consent to the reference to our Firm under the heading “Experts” in such Prospectus.
/s/ Marcum llp
Marcum llp
New York, NY
May 7, 2021
