Oklo
Updated: December 09, 2025
Founders: Caroline Cochran, Jacob DeWitte
Country: USA | Funding: $440.6M (+)
Founded: 2013
Website: http://oklo.com/
Oklo is building a container-sized, continuously operating, carbon-free and emissions-free fission nuclear reactor Aurora. It uses liquid metal coolant and metallic fuel, generates up to 75 MW, features built-in safety and can run on reprocessed waste. The reactor is self-stabilizing, self-regulating and cooled by natural forces. This means the plant is safe for personnel and the technology that enables this has been demonstrated at scale. Oklo also reprocesses nuclear fuel. The company has three project sites and the broadest regulatory support of any modern nuclear power system in the United States. OpenAI co-founder Sam Altman is the primary investor and even served as an early Oklo CEO.
Founded: 2013
Website: http://oklo.com/
Oklo is building a container-sized, continuously operating, carbon-free and emissions-free fission nuclear reactor Aurora. It uses liquid metal coolant and metallic fuel, generates up to 75 MW, features built-in safety and can run on reprocessed waste. The reactor is self-stabilizing, self-regulating and cooled by natural forces. This means the plant is safe for personnel and the technology that enables this has been demonstrated at scale. Oklo also reprocesses nuclear fuel. The company has three project sites and the broadest regulatory support of any modern nuclear power system in the United States. OpenAI co-founder Sam Altman is the primary investor and even served as an early Oklo CEO.
