Banzai International, Inc. is filing this prospectus for the offer and sale from time to time by the selling securityholder named in this prospectus (the "Selling Securityholders") of up to 15,000,000 shares of Class A Common Stock, consisting of shares of Class A Common Stock issuable pursuant to Advances (as defined below) under that certain standby equity purchase agreement (the "Original SEPA"), dated December 14, 2023, by and among Legacy Banzai, 7GC and YA II PN, LTD, a Cayman Islands exempt limited partnership managed by Yorkville Advisors Global, LP ("Yorkville"), as amended by that certain supplemental agreement (the "SEPA Supplemental Agreement" and, together with the Original SEPA, the "SEPA"), dated February 5, 2024. On December 29, 2023, we filed a registration statement on Form S-1 (File No. 333-276307) to register up to 11,453 shares of Class A Common Stock issuable pursuant to Advances under the SEPA; the registration statement was declared effective on February 2, 2024 (the "First SEPA Registration Statement"). On September 20, 2024, we filed another registration statement on Form S-1 (File No. 333-282232) to register an additional 2,500,000 shares of Class A Common Stock issuable pursuant to Advances under the SEPA; the registration statement was declared effective on September 26, 2024 (the "2024 Additional SEPA Registration Statement)." On September 12, 2025, we filed another registration statement on Form S-1 (File No. 333-290241) to register an additional 2,500,000 shares of Class A Common Stock issuable pursuant to Advances under the SEPA; the registration statement was declared effective on September 19, 2025 (the "2025 Additional SEPA Registration Statement," together with the First SEPA Registration Statement and the 2024 Additional SEPA Registration Statement, the "Prior SEPA Registration Statements"). We are filing this registration statement to register additional shares of Class A Common Stock issuable pursuant to Advances under the SEPA for resale.

We will not receive any proceeds from the sale of shares of Class A Common Stock by the Selling Securityholder pursuant to this prospectus. However, we will pay the expenses, other than underwriting discounts and commissions and expenses incurred by the Selling Securityholder for brokerage, accounting, tax or legal services or any other expenses incurred by the Selling Securityholder in disposing of the securities, associated with the sale of securities pursuant to this prospectus. Additional details regarding the securities to which this prospectus relates and the Selling Securityholder is set forth in this prospectus in the Prospectus Summary under the heading "Material Financing Arrangements – SEPA," "Information Related to Offered Securities" and "Description of Securities."