WE HAVE CRITICALITY! Oklo has completed first criticality at its Groves Isotope Test Reactor. Built in less than a year under the @ENERGY’s Reactor Pilot Program, Groves offers a concrete blueprint for future advanced nuclear deployment as the fastest fully privately financed and built reactor project of its kind. Today, Oklo proves that advanced reactors can be built, started, and operated faster than anyone thought possible and shows the world that America can build nuclear again. oklo.com/newsroom/news-detai…

Can waste from recycling nuclear fuel be disposed of safely and affordably? New research from a three-year @ENERGY-funded study found that every scenario evaluated for permanent disposal in deep boreholes met safety criteria and at a projected cost of less than a fraction of a penny per kilowatt-hour of electricity generated. Conducted with @DeepIsolation, @argonne, @cwru, and Oklo, the study provides an important proof point for a more complete approach to used nuclear fuel. For Oklo, these results support the recycling strategies we are developing to put used nuclear fuel back to work while safely and economically managing what remains.

“The long-term solution for how we think about energy abundance, availability, affordability, sustainability, being clean…it is fast reactors and recycling.” - Oklo CEO Jake DeWitte Less than a year after reaching first criticality at the Groves Isotope Test Reactor, Jake hosted @tboypod’s @NickOfNewYork & @jackkramer for a conversation about how nuclear technology can support America’s future in more ways than one. Paired with fast reactors, Jake described used nuclear fuel recycling as the “silver bullet” that can create a cleaner and more sustainable nuclear lifecycle while also enabling the production of vital medical isotopes used to diagnose disease and treat cancer. Full conversation here: piped.video/CsjoJEZkuGI

When Sci-Fi Becomes Reality: Oklo. What if nuclear power plants could be smaller, easier to deploy, and eventually turn used nuclear fuel into a new source of energy? That was the kind of idea @JacobDeWitte brought to @TimDraper. When Jake was building @Oklo, the timeline alone was enough to make most investors walk away. Tim recalls asking a nuclear physicist friend what it would take to build a new nuclear plant in the U.S. The answer: Five years to design. Five years for approval. Five more years to build. Tim invested anyway. Draper Associates committed $1 million early on. Tim has said the decision was made within an hour. They were betting not only on the technology, but on Jake’s ability to push through an industry defined by long development cycles, regulation, and enormous technical complexity. Draper Associates went on to back Oklo through every round leading up to its public listing. Today, Oklo is developing its Aurora fast-fission powerhouses: compact, metal-fueled, sodium-cooled reactors designed to deliver clean, reliable power. The current Aurora product line is designed to produce 15–75 MW of electricity, with the potential for larger systems in the future. But the reactor itself is only part of the idea. Oklo is also developing technology to recycle used nuclear fuel into new reactor fuel. Conventional reactors leave most of the fuel’s potential energy unused; Oklo says its recycling approach could recover up to 95% of the energy remaining in used fuel while reducing the amount of material requiring long-term disposal. And what once sounded like a distant nuclear vision is moving into the physical world. Oklo’s first Aurora powerhouse at Idaho National Laboratory is under construction. In June 2026, the U.S. Department of Energy approved its Preliminary Documented Safety Analysis, another major step toward operation. Oklo currently forecasts commercial operations at the Idaho project beginning in 2028. The ambition is getting much bigger, too. In 2026, Oklo and Meta announced an agreement supporting development of a nuclear-energy campus in Ohio that could eventually scale to 1.2 GW to support Meta’s regional data-center infrastructure. The best frontier companies don't necessarily make an impossible technology appear overnight. Sometimes they take an industry everyone assumes is too slow, too regulated, or too difficult to reinvent, and ask whether the underlying assumptions are still true. Why it matters for builders: A long timeline doesn't automatically make an idea unrealistic. The more important questions are: 🔎 Has the technology changed? 💰 Can the economics change? 🕚 And is the founder willing to stay with the problem long enough to make the future arrive? That was the bet on Oklo. And more than a decade after the company was founded, the experiment is still moving forward.

What does Oklo’s progress mean for the work ahead? On @SPGlobal’s Energy Evolution podcast, Oklo CFO Craig Bealmear joined @AbbieRBennett to discuss how the opportunity for advanced nuclear has changed and why execution will determine which companies deliver. Craig talks about Oklo’s Groves Isotope Test Reactor, which went from a greenfield site to criticality in less than a year, and gave Oklo concrete experience in construction, procurement, and bringing a nuclear facility into operation. Delivering electricity from our Aurora powerhouses will require applying many of those lessons from Groves, with fuel supply, construction capability, and supply chains central to our ability to deploy. For those following Oklo’s long-term progress, Craig explains what we’ve accomplished and what we need to build for the next stage. Listen to the conversation: podcasts.apple.com/us/podcas…

After building our Groves Isotope Test Reactor from the ground up and bringing it to criticality in less than a year, Oklo has been selected to advance Groves 2 Forge as part of the U.S. @ENERGY’s Nuclear Energy Launch Pad initiative. Groves 2 Forge builds directly on what we learned at Groves. We plan to integrate isotope production and processing together in one facility with an initial focus on lutetium-177, an isotope used in targeted cancer treatments. We are taking what we demonstrated at Groves and moving toward commercial-scale isotope production, while building the experience and infrastructure needed to strengthen domestic isotope supply. Groves showed how quickly we can build. Groves 2 is about building on that momentum to produce materials that can make a meaningful difference in people’s lives. Learn more: oklo.com/newsroom/oklo-to-ad…

Ohio has a proud legacy of manufacturing, innovation, and building the infrastructure that powers America. We're thrilled to build on that foundation by partnering with @OhioState to help develop the talent that will carry it into the next era of nuclear energy. Through $4.5 million in combined support, our partnership will help Ohio State launch a new undergraduate nuclear engineering major in fall 2027, while expanding hands-on learning, research facilities, faculty support, and student scholarships. That includes expanding the university's Nuclear Reactor Laboratory and establishing the new Oklo Experiential Engineering Education Lab, giving students more opportunities to turn classroom learning into real-world engineering experience. Building the next generation of nuclear energy means building the next generation of nuclear engineers alongside it. As we advance our plans for nuclear deployment in Ohio, we're proud to invest in the people who will help bring those plans to life. Learn more: engineering.osu.edu/news/202…

Climate Week may be over, but one of its biggest questions isn’t going anywhere: How do we build enough clean power to keep up with rising electricity demand? Oklo Senior Vice President, Head of Business Development @BrianGitt joined a conversation hosted by @TheEconomist with @lsavickas, @awscloud’s Craig Sundstrom, and @IEA’s Sophie Westlake on how the energy system can support rising electricity demand. A reactor is only one part of the equation. Delivering advanced nuclear at commercial scale also requires the fuel, manufacturing capacity, construction capabilities, supply chains, and supporting infrastructure to bring projects online. Oklo is building with that full ecosystem in mind, designing powerhouses that can draw on existing industrial equipment and supply chains while expanding capabilities across manufacturing, engineering, procurement, and construction. Building those pieces alongside generation will be essential to delivering more clean, always-on power where it’s needed. Learn more about Oklo’s approach here: oklo.com/nycw/building-relia…

As the U.S. looks to quadruple nuclear generation by 2050, it will need a fuel strategy that can power that growth.  Nuclear fuel recycling can support a more sustainable and economical path by recovering more energy from used nuclear fuel, reducing the need for newly mined uranium, and shrinking the amount of waste that requires long-term management. That shift toward a more integrated approach to nuclear generation, fuel, and waste management is taking shape through efforts like the @ENERGY’s Nuclear Lifecycle Innovation Campuses. Our partnership and research with @argonne will help Oklo advance toward recycling commercialization, making this vision a reality.

In case you missed it: the nuclear comeback is underway, and Oklo is building it. A few weeks ago, just after reaching criticality at the Groves Isotope Test Reactor, CEO Jake DeWitte brought @tboypod’s @NickOfNewYork & @jackkramer along for a tour of the facility and to unpack the ideas behind Oklo’s efforts to build a new approach to nuclear. They cover how fast reactors work, what criticality actually means, why Oklo is investing in fuel recycling technology now, and why the conversation around America’s growing power demand is putting nuclear back at the center of the energy debate. Catch up here: piped.video/CsjoJEZkuGI

In case you missed it: the nuclear comeback is underway, and Oklo is building it. A few weeks ago, just after reaching criticality at the Groves Isotope Test Reactor, CEO Jake DeWitte brought @tboypod’s @NickOfNewYork & @jackkramer along for a tour of the facility and to unpack the ideas behind Oklo’s efforts to build a new approach to nuclear. They cover how fast reactors work, what criticality actually means, why Oklo is investing in fuel recycling technology now, and why the conversation around America’s growing power demand is putting nuclear back at the center of the energy debate. Catch up here: piped.video/CsjoJEZkuGI

“It’s a resource. If we can use all this energy and recycle it and do it again and again and again, why aren’t we doing this?”  When people think about used nuclear fuel, they often see waste. Oklo’s Senior Director of Fuel Cycle Technology, Dr. Christina Leggett, sees it as a resource. Advanced fuel recycling can recover valuable material that can be made into new fuel for future powerhouses. It can also create opportunities to recover critical isotopes that support healthcare, research, national security, and even space exploration. Hear why Dr. Leggett believes we should get more value from the nuclear materials we already have.

Scaling advanced nuclear will require cultivating a new generation of skilled workers across engineering, manufacturing, construction, operations, and other fields. That was the focus of Oklo Vice President of Product Integration Scott Auerbach’s conversations today at Climate Week. He joined industry leaders to discuss how to build the workforce needed to support nuclear growth, from creating new career pathways and investing in training to ensuring the talent pipeline keeps pace with deployment. Learn more about Oklo’s approach and explore opportunities with our talented and growing team: oklo.com/about/careers

Oklo’s Chief Financial Officer Craig Bealmear joined Stefano Buono, Chief Executive Officer, @newcleoenergy, Jacob Stedman, Chief Executive Officer, Blykalla, and Amir Vexler, President and CEO, @centrus_energy, plus Amy Roma, Partner at @Orrick, at the @Atlantic Council’s Nuclear Energy Policy Summit for a conversation on how to meet rising electricity demand. The entire panel agreed: it’s time to execute on the opportunity in advanced nuclear energy. As Craig shared, Oklo is moving from proving what is possible to proving what can be deployed repeatedly and at commercial scale. Speed and execution will be critical as the industry works together to bring more clean, reliable power online – and at a pace fast enough to keep up with a growing and evolving economy. More on Oklo’s approach here: oklo.com/nycw/meeting-americ…

New York, we’re on our way. Advanced nuclear is a climate solution within reach—and Oklo is coming to Climate Week NYC to discuss what it takes to deploy it at scale. Throughout the week, our leaders will join conversations about delivering clean, always-on power, unlocking more energy from used nuclear fuel through recycling, and training the workforce needed to support industry growth and the energy transition.  Looking for somewhere to recharge? Meet us at the Oklo Lounge at @Axios House at GH on the Park—we’ll have charging stations, coffee, and more to keep you and your devices fueled.  Join us in New York and follow along here as we share perspectives from our team, highlights from the week, and a closer look at how Oklo is working to deliver clean, reliable power at scale.

The 1st podcast recorded inside a nuclear reactor. We sat down with @jakedewitte, co-founder and CEO of @oklo, just feet from actual splitting atoms. We talked about why nuclear got cancelled in the 80s, and how his nuclear is safer, recycles nuclear waste, and (*checks notes*) fights cancer. This one’s special, Yetis. WATCH the full episode wherever you get your pods!

Not every podcast is recorded at the site of a functioning nuclear reactor. Shortly after criticality at the Groves Isotope Test Reactor, Oklo CEO Jake DeWitte welcomed @tboypod’s @NickOfNewYork & @jackkramer onsite for a look at the infrastructure and approach behind the milestone. Their conversation explored the lessons learned from Groves as the fastest-built fully privately financed reactor project of its kind, as well as how Oklo’s integrated platform across power, fuel, and isotopes is creating a more flexible path to scaling advanced nuclear. They also discussed what comes next for Oklo, from meeting growing demand for clean, reliable power to investing in domestic fuel capabilities to get ahead of constraints and producing critical isotopes for medicine, space, and other essential applications. Full conversation: piped.video/watch?v=CsjoJEZk…

Oklo is proud to be investing in Tennessee and contributing to the state’s next chapter of nuclear innovation. We’re building on Tennessee’s nuclear legacy with plans to develop America’s first privately funded advanced nuclear fuel recycling and manufacturing facility in Oak Ridge. The center aims to create more than 800 high-quality jobs and help establish a secure domestic fuel supply for the next generation of advanced nuclear reactors. We’re excited to keep building with Tennessee’s people and communities!

Electricity demand is surging, and meeting that demand will require clean, reliable, and affordable power at scale. Advanced nuclear can support growing power demand while strengthening domestic fuel supply and making better use of nuclear materials. Oklo is building an integrated platform across power, fuel, and isotopes to help build a more resilient energy system.  Read more in our @Nature partner content: nature.com/articles/d42473-0…

Oklo co-founder and COO @caorilne joined @PaulHShapiro on the Business for Good podcast to discuss her decade-long journey building Oklo and why Groves reaching criticality means much more than just starting up a reactor. Built from the ground up in less than a year, the Groves Isotope Test Reactor gave Oklo hands-on experience across engineering, construction, regulatory execution, operator training, security, quality assurance, startup, and operations. That experience creates a foundation Oklo can build on to advance commercial-scale isotope production, fuel fabrication, and planned Aurora powerhouse deployments. Listen to the full conversation: piped.video/watch?v=9bO4oqRh…

Reaching criticality at Groves was a major milestone. It was also just the beginning. In less than a year, Oklo built our Groves Isotope Test Reactor from the ground up and brought it to criticality, demonstrating our ability to move from design to operation on a timeline few thought possible. What we learned extends far beyond Groves. The project gave our team hands-on experience across engineering, construction, regulatory execution, startup, and operations that we can apply as we advance projects across power, fuel, and isotopes. Now, we're putting that experience to work as we build toward commercial scale. That includes targeting our first commercial isotope revenue in early 2027 through our NRC-licensed Idaho Radioisotope Laboratory, while advancing our power and fuel projects toward deployment. Groves demonstrated our ability to build, learn, and repeat. Now, we're doing it across the business. piped.video/0H8A4jXKuyA?si=Pm2M…