News
US overtakes Chinese supercomputer to take top spot for fastest in the world
After a semi-annual assessment measuring supercomputer computational speeds, US-built IBM machine “Summit” has toppled two Chinese competitors to take the lead as the fastest of its kind in the world. China’s Tianhe-2 and Sunway TaihuLight spent the last two years at the top of the SuperComputer TOP500 List, but this month Summit pulled ahead of both with a performance of 143.5 quadrillion operations per second, making it 65% more powerful than the next non-US supercomputer on the list. Out of the top ten machines ranked, five are in the United States.
The TOP500 project was established in 1993 to track and rank meaningful statistics for organizations to use in determining their needs with regard to high-performance computing (HPC). The benchmark test used to determine the rankings is called “Linpack”, which requires HPC systems to solve a specific set of linear equations using floating point arithmetic. To help quantify just how powerful the machines in the HPC category are, Summit is 1 million times more powerful than the fastest laptop with 250 petabytes of storage capacity.
Located at the Oak Ridge Leadership Computing Facility (OCLF) in Tennessee, the Summit supercomputer has an architecture purpose-built and optimized by IBM for artificial intelligence. While specialized, access to its technology isn’t exclusive to the machine’s developers. All components are available to any enterprise as part of IBM’s product line.
Summit was funded with part of a $258 million grant from the U.S. Department of Energy to help maintain US leadership in national security, manufacturing, industrial competitiveness, and energy and earth sciences. Summit’s “sister” computer, Sierra, was developed as part of the same Department of Energy commission and takes second place in the TOP500 list. This machine is located at Lawrence Livermore National Laboratory (LLNL) in California, and it boasts a computing speed of just under 95 quadrillion operations per second.
The HPC field overall provides computing power for advanced artificial intelligence along with massive data projects in business, medicine, science, and engineering. A recent competition hosted by the Association for Computing Machinery to recognize achievements in HPC, the Gordon Bell Prize, named five finalists that used Summit for advanced science research. The projects included, among others, an algorithm looking for genetic variations linked to complex traits and conditions such as opioid addiction, an AI simulation of earthquake physics in urban environments, and a deep neural network to identify extreme weather patterns from climate simulations. The winner of the competition will be named later this week at the 2018 International Conference for High Performance Computing, Networking, Storage, and Analysis in Dallas.
Watch the video below for more about Summit’s supercomputer capabilities.
News
Lucid and Uber team with Nuro for new robotaxi program with Gravity SUV
The plan currently is to launch it to the public in the Bay later this year.
Lucid and Uber are teaming up with Nuro to launch an autonomous robotaxi program utilizing the automaker’s Gravity SUV. The project will be unveiled at CES 2026, introducing an in-cabin rider experience completely designed by Uber, the world’s largest ride-sharing service.
Back in 2025, the partnership between the three companies was announced, aiming to launch a unique ride-sharing platform using over 20,000 Lucid vehicles equipped with the Nuro Driver technology. The vehicles are owned and operated by Uber.
The companies have already initiated some testing in the San Francisco Bay Area, which is a big step in the right direction for the project. The plan currently is to launch it to the public in the Bay later this year. Nuro will lead the testing using robotaxi engineering prototypes that are supervised by autonomous vehicle operators.
Currently, there are over 100 robotaxis in the Engineering Test Fleet.
The Gravity vehicles are fitted with a next-gen sensor array featuring high-res cameras, solid-state LiDAR sensors, and radars that will provide a 360-perception model, as well as a “purpose-built roof-mounted halo designed to maximize sensor visibility,” which is seen on top of the Gravity unit above.
The halo also has integrated LEDs to help riders more easily identify the correct vehicle by displaying their initials. The halo will also provide clear status updates from pickup through dropoff.
These units for the robotaxi program between the three companies will start being produced later this year at Lucid’s Arizona AMP-1 factory.
Uber chose the Lucid Gravity specifically due to its “unprecedented comfort” and its reputation, as it was named to Car and Driver’s 10 Best for 2026. But Uber is customizing some things for the Gravity so that it is specifically catered to robotaxi riders:
- For the first time, Uber is designing the in-vehicle rider experience, which will include interactive screens with entertainment and climate control options, as well as support contacts and vehicle maneuver requests, like a request to pull over.
- It will also have in-vehicle visualization, showing what the robotaxi sees and its path in real-time. This will be a nice transition for those who are skeptical about driverless vehicles, and will show what the vehicle and its sensors, LiDAR, and cameras see.
- The Gravity is also a sizeable SUV, which will give riders space for themselves and their luggage.
This is the latest application of a ride-hailing platform that leans on autonomy for its operation, essentially phasing out the need for human drivers in various markets, starting with the Bay Area.
More companies are dipping their toes in the project, giving them the opportunity to establish some early momentum, as there are only a handful of companies that are currently operating this in the United States. Uber, Lucid, and Nuro aim to be the next, and initiating this program at this time is big for their chance at success.
News
Tesla Cybercab test fleet expands in Austin and Bay Area
In total, the Robotaxi fleet is comprised of 139 total vehicles in both Austin and the Bay Area. The vast majority of these units are Model Y cars, but the Cybercab is the most recent addition to the fleet.
Tesla has expanded its fleet of Cybercab test units in both Austin and the Bay Area of California, as the vehicle is heading toward the first production stages, hopefully early this year.
As the first few units were spotted in Austin late last year, Tesla is now operating seven total Cybercab units in testing, three of which were spotted over the weekend in Texas. Bay Area testing just started on January 3, with both units also being added to the fleet on Saturday and Sunday.
In total, there are seven Cybercabs now operating, according to Robotaxi Tracker, each with different license plates that have been observed over the course of the last several weeks; the first unit was spotted in Austin on December 18.
The future should look like the future, indeed.
The Cybercab really changes the look of the roads, but without the shock factor of the Cybertruck. It’s a pretty good balance, imo.pic.twitter.com/PM0KbjzhxR
— TESLARATI (@Teslarati) December 22, 2025
The expansion of the Cybercab test fleet is a slow but steady process that Tesla is taking to get the car on public roads ahead of its initial production stages.
CEO Elon Musk said last week that Tesla has already started some test production phases of the vehicle at Gigafactory Texas, which is located outside of Austin.
Tesla Cybercab tests are going on overdrive with production-ready units
However, it will likely be some time before Tesla actually adds it to the fleet for rides that are available to the public. Tesla plans to build it without a steering wheel or pedals, so the company will have to reach Level 5 autonomy at that point before customers can hail rides and take it to their destination.
In total, the Robotaxi fleet is comprised of 139 total vehicles in both Austin and the Bay Area. The vast majority of these units are Model Y cars, but the Cybercab is the most recent addition to the fleet.
News
Tesla Germany’s “Giga Train’s” improved service gets rave reviews
As per recent reports, Tesla’s free “train”Giga Train” service will increase its daily trips to six starting this week.
Tesla has expanded its employee shuttle service from Berlin Ostbahnhof East Station to the Gigafactory Berlin-Brandenburg. As per recent reports, Tesla’s free “train”Giga Train” service has increased its daily trips to six starting this week.
The service has so far received positive reviews from the facility’s employees, some of whom noted that the upgraded shuttle train has reduced their travel time by a notable margin.
Giga Berlin’s expanded shuttle service
As noted in a rbb24 report, Giga Berlin’s free shuttle train now operates six times daily, up from one previously. The service also goes directly to the Model Y production facility without stopping at other stations. Tesla employee Dené Schunck described the service to rbb24 in a comment: “The shuttle goes directly to the factory site, without any transfers, which reduces the commute time for our employees by almost half,” Schunck stated.
Operated by Ostdeutsche Eisenbahngesellschaft (Odeg) after switching from Niederbarnimer Eisenbahn (NEB), Giga Berlin’s shuttle train, which also stops at Ostkreuz and Erkner, remains free for all riders, including non-Tesla employees. It has been fully funded by Tesla Germany since September 2023.
Employees praised the changes: One Giga Berlin worker stated that it “definitely makes the journey easier” because employees “used to need two hours for the round trip from Berlin, but now it’s significantly faster.”
Tesla Germany’s previous comments
In late 2025, reports emerged stating that Tesla Germany will be expanding its shuttle train service by adding direct rail trips from Berlin Ostbahnhof to Giga Berlin-Brandenburg. In a comment, Tesla Germany stated that the updated service would mirror the shift changes for the Model Y factory’s employees.
“The service includes six daily trips, which also cover our shift times. The trains will run between Berlin Ostbahnhof (with a stop at Ostkreuz) and Erkner station to the Gigafactory,” Tesla Germany noted.
At the time, Tesla Germany also stated that despite construction being done at Fangschleuse and Köpenick stations, the route of the Giga Train has been optimized to maintain a predictable 35-minute travel time. This should provide Tesla Germany’s employees with a convenient way to travel to and from Giga Berlin.
Lucid and Uber team with Nuro for new robotaxi program with Gravity SUV
Tesla Cybercab test fleet expands in Austin and Bay Area
