Nature of Operations and Organization	3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations and Organization	Nature of Operations and Organization Oklo Inc. (the "Company" or "Oklo"), a Delaware corporation, and its subsidiaries are developing advanced fission power plants to provide clean, reliable, and affordable energy at scale. Oklo Technologies, Inc., a Delaware corporation and wholly owned subsidiary of Oklo Inc., was incorporated on July 3, 2013. The Company plans to commercialize its metal-fueled fast reactor technology with the Aurora powerhouse product line. The Aurora product line is designed to produce between 15 and 75 megawatts of electricity (“MWe”) on fresh, recycled, or down-blended nuclear fuel. Advanced fission technology built on a deep history of successful operation, first demonstrated by the Experimental Breeder Reactor-II (“EBR-II”), which sold and supplied power to the grid and showed effective used nuclear fuel recycling capabilities over 30 years of operation. The Company is also commercializing nuclear fuel recycling and fuel fabrication technology that can convert used nuclear fuel and other nuclear materials into usable fuel for its reactors, as well as the production of radioisotopes. The Company’s radioisotope activities are intended to support domestic supply for medical, industrial, space, defense, and other critical applications. The Company is pursuing these activities through dedicated isotope production and processing capabilities, which may also benefit from radioisotope co-products generated through its fuel recycling and reactor platform. Liquidity and Capital Resources As of March 31, 2026, the Company’s cash, cash equivalents, and marketable debt securities were $2,536,898. The Company continues to incur significant operating losses. For the three months ended March 31, 2026, the Company had a net loss of $33,065, loss from operations of $51,249, and net cash used in operating activities of $17,867. As of March 31, 2026, the Company had an accumulated deficit of $273,837. The Company expects to utilize its existing cash, cash equivalents, and marketable debt securities to fund construction of its powerhouses, fuel and radioisotope businesses, 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 unaudited condensed consolidated financial statements.

Oklo Inc. (the "Company" or "Oklo"), a Delaware corporation, and its subsidiaries are developing advanced fission power plants to provide clean, reliable, and affordable energy at scale. Oklo Technologies, Inc., a Delaware corporation and wholly owned subsidiary of Oklo Inc., was incorporated on July 3, 2013.

The Company plans to commercialize its metal-fueled fast reactor technology with the Aurora powerhouse product line. The Aurora product line is designed to produce between 15 and 75 megawatts of electricity (“MWe”) on fresh, recycled, or down-blended nuclear fuel. Advanced fission technology built on a deep history of successful operation, first demonstrated by the Experimental Breeder Reactor-II (“EBR-II”), which sold and supplied power to the grid and showed effective used nuclear fuel recycling capabilities over 30 years of operation. The Company is also commercializing nuclear fuel recycling and fuel fabrication technology that can convert used nuclear fuel and other nuclear materials into usable fuel for its reactors, as well as the production of radioisotopes. The Company’s radioisotope activities are intended to support domestic supply for medical, industrial, space, defense, and other critical applications. The Company is pursuing these activities through dedicated isotope production and processing capabilities, which may also benefit from radioisotope co-products generated through its fuel recycling and reactor platform.

As of March 31, 2026, the Company’s cash, cash equivalents, and marketable debt securities were $2,536,898. The Company continues to incur significant operating losses. For the three months ended March 31, 2026, the Company had a net loss of $33,065, loss from operations of $51,249, and net cash used in operating activities of $17,867. As of March 31, 2026, the Company had an accumulated deficit of $273,837.

The Company expects to utilize its existing cash, cash equivalents, and marketable debt securities to fund construction of its powerhouses, fuel and radioisotope businesses, 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 unaudited condensed consolidated financial statements.