Simple Agreements for Future Equity	3 Months Ended
Mar. 31, 2025
Other Liabilities Disclosure [Abstract]
Simple Agreements for Future Equity	Simple Agreements for Future Equity The Company issued simple agreements for future equity (the “Legacy Oklo SAFEs”) to investors (the “SAFEs”) prior to the Recapitalization, where the SAFEs allowed investors to purchase equity at a negotiated price at the time of each investor’s entry into such agreement with each investor receiving equity in the future with no set time for conversion. The SAFEs converted in connection with the Recapitalization. Prior to the conversion, the SAFEs were classified as a liability under ASC 480, Distinguishing Liabilities from Equity. No SAFEs were issued during the three months ended March 31, 2025. During the three months ended March 31, 2024, the Company issued SAFE notes in exchange for aggregate cash proceeds of $10,232. Fair Value Measurements Prior to the SAFEs conversion, they were measured at fair value on a recurring basis using significant unobservable inputs based upon a three-tier hierarchy under the authoritative guidance (Level 3) at each reporting period-end, with changes in the fair value recognized on the condensed consolidated statements of operations. The change in fair value during the three months ended March 31, 2024 was $16,793, as reflected on the condensed statements of operations.

Simple Agreements for Future Equity

3 Months Ended

Mar. 31, 2025

Other Liabilities Disclosure [Abstract]

The Company issued simple agreements for future equity (the “Legacy Oklo SAFEs”) to investors (the “SAFEs”) prior to the Recapitalization, where the SAFEs allowed investors to purchase equity at a negotiated price at the time of each investor’s entry into such agreement with each investor receiving equity in the future with no set time for conversion. The SAFEs converted in connection with the Recapitalization. Prior to the conversion, the SAFEs were classified as a liability under ASC 480, Distinguishing Liabilities from Equity.

No SAFEs were issued during the three months ended March 31, 2025. During the three months ended March 31, 2024, the Company issued SAFE notes in exchange for aggregate cash proceeds of $10,232.

Fair Value Measurements

Prior to the SAFEs conversion, they were measured at fair value on a recurring basis using significant unobservable inputs based upon a three-tier hierarchy under the authoritative guidance (Level 3) at each reporting period-end, with changes in the fair value recognized on the condensed consolidated statements of operations. The change in fair value during the three months ended March 31, 2024 was $16,793, as reflected on the condensed statements of operations.