Oklo

Building nuclear means advancing multiple pieces of work at once, and Oklo has been busy. Over the past year, we moved from planning to execution: construction began @INL for Aurora-INL in Idaho, key partners like @Kiewit and @Siemens_Energy were locked in, fuel milestones were cleared, a fuel recycling facility was unveiled in Tennessee, and advanced our Radioisotopes Pilot Facility in Texas. And the work continues. Watch below ↓

Oklo’s VP of Fuel Recycling, @EdPetitDeMange, joined @ORNL’s The Sound of Science podcast to discuss why fuel recycling matters now more than ever before, how Oklo is integrating fuel supply directly into its business model, and what it takes to build a modern commercial fuel cycle in the United States. Listen: ornl.gov/media/96701

In less than two months, Oklo’s isotope test reactor will go critical. We’re building, iterating, and executing in real time across power, fuel, and isotopes. Follow our journey: @OkloInc" target="_blank" rel="nofollow noopener">youtube.com/@OkloInc

At @INL, Oklo has moved from site mobilization into deep foundation excavation for our first commercial Aurora powerhouse. What makes this moment significant is not just the physical progress at the site, but the coordinated progress taking shape across the entire project. Construction, fuel, and licensing are all advancing at a pace that once seemed inconceivable. Oklo is demonstrating what is possible when the critical pieces move forward in parallel.

Fast reactor technology is the foundation that connects Oklo's power, fuel, and isotope business lines into one integrated system. Our fast-fission powerhouses provide clean, always-on electricity while enabling practical fuel recycling, which can produce isotopes for medical, industrial, space, and national security applications. Together, these business lines function as one platform that maximizes value across the nuclear lifecycle.

Oklo is partnering with @Battelle to integrate @INL’s Prometheus AI platform into Oklo’s reactor and fuel-system design workflows. As advanced reactors like the ones Oklo is commercializing move toward deployment, scaling engineering workflows becomes increasingly important. This collaboration combines Oklo’s reactor and fuel development work with INL’s technical expertise and AI infrastructure to help build the systems and tools to support the commercialization and deployment of Oklo’s advanced nuclear powerhouses. oklo.com/newsroom/news-…

Big news for Oklo’s Aurora reactor site in Idaho: @NRCgov approved our Principal Design Criteria topical report. Completed in less than half the traditional review timeline, this approval establishes the core safety and design framework for our Aurora powerhouse.  It also means approved content can be referenced in future applications without being re-reviewed, helping support faster licensing work. For Oklo, this is a critical step toward repeatable deployment that keeps safety at the center. Learn more: oklo.com/newsroom/news-…

Yesterday, Oklo hosted EBR-II veterans and partners at @INL to mark the start of construction on our Aurora Fuel Fabrication facility, where used fuel from EBR-II will help power our first Aurora powerhouse. It was a special moment connecting past, present, and future, and recognizing the people whose decades-long work on advanced fast reactor technology demonstrated inherent safety, and proved the value of fast-fission systems that can run on recycled fuel through an integrated fuel cycle. That work forged the foundations for Oklo’s advanced reactor design today. Learn more about the EBR-II Shutdown Heat Removal Tests here: publications.anl.gov/anlpubs/2012/0…

Advanced nuclear technologies aren’t just transforming how we power the future. They are also enabling materials that can save  lives and support space exploration. More: oklo.com/newsroom/news-…

This license marks an important step toward strengthening the U.S.  supply of critical isotopes and advancing domestic commercial production of materials that support medicine, industry, and space exploration.

Last month, we celebrated a huge milestone for Oklo’s isotopes business line. The @NRCgov has granted us a license to handle, process, and distribute isotopes – making Oklo one of the first advanced nuclear companies licensed to sell isotopes. 🧵

Oklo CEO Jacob DeWitte joined @BloombergTV to discuss Oklo's progression toward criticality and what it takes to bring advanced nuclear systems online. With our isotope test reactor in Texas just months away from reaching criticality. Full interview:  bloomberg.com/news/videos/20…

As demand for computing capabilities accelerates, Oklo is collaborating with @NVIDIA and @LosAlamosNatLab to advance nuclear fuel validation, AI-enabled nuclear R&D, and infrastructure studies in support of future nuclear-powered AI factories. This is how computing and energy research come together to support what’s next. Learn more -> oklo.com/newsroom/news-…

Oklo CEO Jacob DeWitte joined @LizClaman on @FoxBusiness to discuss why nuclear is the clear solution for power in space. Nuclear has powered missions for decades through isotope systems that deliver continuous energy where others can’t. At Oklo, we’re building the systems that support both the present and the future, including our isotope test reactor that will reach criticality by July 4. Full interview: foxbusiness.com/video/63935748…

Most traditional nuclear systems use fuel only once, leaving about 95% of its potential energy untapped. Oklo is changing that. Fuel recycling is core to our model, recovering that energy and putting it back to work. Less waste. More value. Stronger domestic energy supply. A fundamentally different system that changes how we think about fuel, waste, and long-term supply.

Yesterday on @CNBC, Oklo CEO Jacob DeWitte discussed the White House’s push to deploy nuclear systems in space. The challenge isn’t whether it’s possible. It’s whether we can build the infrastructure fast enough. At Oklo, we’re building the systems needed to deliver at the speed this moment demands. Full interview: cnbc.com/video/2026/04/…

Next stop: criticality.  From our isotope test reactor in Texas to our first Aurora powerhouse in Idaho, Oklo is in full build mode. And we’re going critical by July 4th with our isotope test reactor. Follow our journey: @OkloInc" target="_blank" rel="nofollow noopener">youtube.com/@OkloInc

The Artemis II mission is a reminder of the role isotopes play in space. They power instruments and enable sensing where sunlight can’t reach. From deep space to medical imaging on Earth, these materials make critical capabilities possible. Oklo is working to strengthen domestic isotopes supply. Congrats to @NASA and the Artemis team.

Most nuclear “waste” isn’t actually waste. The U.S. has almost 100,000 metric tons of used fuel—enough to fit inside a large grocery store—and most of it still has usable energy and valuable materials. Conditions have changed. Recycling is back in focus.  A new analysis, co-authored by Oklo’s Dr. Christina Leggett, explains why. More via @Sonalcpatel for @POWERmagazine: powermag.com/nuclear-recycl…

Forty years ago today, a nuclear reactor proved it could shut itself down safely. In 1986, EBR-II, a fast reactor, lost coolant flow. It reduced power and stabilized on its own. No operator action. This wasn’t a theory. It was proven at full scale. This is why we’re commercializing fast reactors. They pair inherent safety with the ability to use recycled fuel to deliver reliable, clean energy from existing nuclear material. That legacy continues to shape how advanced reactors, including Oklo’s, are designed. In May, we’ll carry forward that legacy by hosting EBR-II veterans and partners at @INL and NRIC—recognizing their work and highlighting efforts to repurpose EBR-II fuel for our first Aurora powerhouse.