Nature of Operations and Organization	3 Months Ended
Mar. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations and Organization	Nature of Operations and Organization Oklo Inc. (the “Company” or “Oklo”), conducts its operations through its subsidiary Oklo Technologies, Inc., a Delaware corporation incorporated on July 3, 2013. The Company is developing advanced fission power plants to provide clean, reliable, and affordable energy at scale and plans to commercialize its metal-fueled fast reactor technology with the Aurora powerhouse product line. The Aurora product line is designed to produce up to 15 and 75 megawatts of electricity (“MWe”) on both recycled nuclear fuel and fresh fuel. Oklo’s advanced fission technology has a history of successful operation, first demonstrated by the Experimental Breeder Reactor-II, which sold and supplied power to the grid and showed effective waste recycling capabilities over 30 years of operation. Furthermore, Oklo has achieved several significant deployment and regulatory milestones, including securing a site use permit from the U.S. Department of Energy (“DOE”) for the Idaho National Laboratory (“INL”) Site and a fuel award from INL for a commercial-scale advanced fission power plant in Idaho. On May 9, 2024, the Company consummated a business combination pursuant to an Agreement and Plan of Merger and Reorganization dated July 11, 2023 (as amended, modified, supplemented or waived, the “Merger Agreement”), by and among AltC Acquisition Corp. ("AltC"), and Oklo Technologies, Inc. (the "Recapitalization") (further details are provided below). Before the Recapitalization, Oklo Technologies, Inc. was formerly known as Oklo Inc. (referred to herein as "Legacy Oklo"). Upon consummation of the Recapitalization, AltC changed its name to Oklo Inc. In connection with the Recapitalization consummated on May 9, 2024 that was accounted for as a reverse recapitalization, where Legacy Oklo was determined to be the accounting acquirer, the common stock has been recast to reflect the retroactive application of the reverse recapitalization. Under this method of accounting, AltC was treated as the “acquired” company for financial reporting purposes. Accordingly, for accounting purposes, the Recapitalization was treated as the equivalent of Legacy Oklo issuing stock for the net assets of AltC, accompanied by a recapitalization. Results of operations prior to the Recapitalization are presented as belonging to Legacy Oklo. The Recapitalization had no effect on reported net loss, cash flows, or total assets as previously reported. The Company’s Class A common stock ("common stock") commenced trading on the New York Stock Exchange (“NYSE”) under the symbol “OKLO” on May 10, 2024. On February 28, 2025, the Company's entered into a stock purchase agreement pursuant to which it acquired 100% of the common stock outstanding of Atomic Alchemy, Inc. ("Atomic Alchemy"), by way of statutory merger, to combine Oklo’s expertise in building and operating fast reactors and nuclear fuel recycling with Atomic Alchemy’s expertise in its radioisotope business to meet the increasing demands for radioisotopes in medical, energy, industry, defense and artificial intelligence applications (further details are provided in Note 3). Liquidity and Capital Resources As of March 31, 2025, the Company's cash, cash equivalents and marketable debt securities were $260,688. The Company continues to incur significant operating losses. For the three months ended March 31, 2025, the Company had a net loss of $9,810, loss from operations of $17,874, and net cash used in operating activities of $12,243. As of March 31, 2025, the Company had an accumulated deficit of $144,919. The Company will utilize its existing cash, cash equivalents and marketable debt securities to fund its powerhouses, radioisotopes business, operations and growth plans and believes that its existing cash, cash equivalents and marketable debt securities will be sufficient to fund its operations for the one-year period following the issuance date of these condensed consolidated financial statements.

The Company is developing advanced fission power plants to provide clean, reliable, and affordable energy at scale and plans to commercialize its metal-fueled fast reactor technology with the Aurora powerhouse product line. The Aurora product line is designed to produce up to 15 and 75 megawatts of electricity (“MWe”) on both recycled nuclear fuel and fresh fuel. Oklo’s advanced fission technology has a history of successful operation, first demonstrated by the Experimental Breeder Reactor-II, which sold and supplied power to the grid and showed effective waste recycling capabilities over 30 years of operation. Furthermore, Oklo has achieved several significant deployment and regulatory milestones, including securing a site use permit from the U.S. Department of Energy (“DOE”) for the Idaho National Laboratory (“INL”) Site and a fuel award from INL for a commercial-scale advanced fission power plant in Idaho.

On May 9, 2024, the Company consummated a business combination pursuant to an Agreement and Plan of Merger and Reorganization dated July 11, 2023 (as amended, modified, supplemented or waived, the “Merger Agreement”), by and among AltC Acquisition Corp. ("AltC"), and Oklo Technologies, Inc. (the "Recapitalization") (further details are provided below). Before the Recapitalization, Oklo Technologies, Inc. was formerly known as Oklo Inc. (referred to herein as "Legacy Oklo"). Upon consummation of the Recapitalization, AltC changed its name to Oklo Inc.

In connection with the Recapitalization consummated on May 9, 2024 that was accounted for as a reverse recapitalization, where Legacy Oklo was determined to be the accounting acquirer, the common stock has been recast to reflect the retroactive application of the reverse recapitalization. Under this method of accounting, AltC was treated as the “acquired” company for financial reporting purposes. Accordingly, for accounting purposes, the Recapitalization was treated as the equivalent of Legacy Oklo issuing stock for the net assets of AltC, accompanied by a recapitalization. Results of operations prior to the Recapitalization are presented as belonging to Legacy Oklo. The Recapitalization had no effect on reported net loss, cash flows, or total assets as previously reported.

On February 28, 2025, the Company's entered into a stock purchase agreement pursuant to which it acquired 100% of the common stock outstanding of Atomic Alchemy, Inc. ("Atomic Alchemy"), by way of statutory merger, to combine Oklo’s expertise in building and operating fast reactors and nuclear fuel recycling with Atomic Alchemy’s expertise in its radioisotope business to meet the increasing demands for radioisotopes in medical, energy, industry, defense and artificial intelligence applications (further details are provided in Note 3).

As of March 31, 2025, the Company's cash, cash equivalents and marketable debt securities were $260,688. The Company continues to incur significant operating losses. For the three months ended March 31, 2025, the Company had a net loss of $9,810, loss from operations of $17,874, and net cash used in operating activities of $12,243. As of March 31, 2025, the Company had an accumulated deficit of $144,919.

The Company will utilize its existing cash, cash equivalents and marketable debt securities to fund its powerhouses, radioisotopes business, operations and growth plans and believes that its existing cash, cash equivalents and marketable debt securities will be sufficient to fund its operations for the one-year period following the issuance date of these condensed consolidated financial statements.