Tesla App Leak Reveals Optimus Gen 3 With 22-DoF Hands
Tesla has rarely spoken publicly about its humanoid robot program in recent months, but its own mobile app may have unintentionally revealed new information. A set of digital assets discovered deep within the Tesla app appears to show an uncovered, production-ready version of the Optimus Gen 3 humanoid robot. The discovery has fueled speculation about the robot's official launch.
Tesla enthusiast @WholeMars found these render models in a recently updated Tesla Android app. Unlike stylized concept sketches, the files are official UI models that Tesla itself built into the app, where they are used to display the Tesla robot on a phone screen. The leak also highlights how Tesla uses its existing app ecosystem to preview and eventually manage new products.
Design changes in Gen 3: The render models extracted from the app offer a direct comparison between the upcoming Gen 3 and the earlier Gen 2.5 prototype. The Optimus Gen 2.5 used exposed mechanical linkages and gold metal trim on its lower legs. By contrast, Gen 3's overall design is noticeably simpler and carries a more industrial-product character. The comparison suggests Tesla is shifting Optimus from a rough prototype toward a more polished product.
First, Tesla redesigned the pelvis and hip assembly. At the junction between the torso and the upper thighs, the company added an integrated flexible joint shroud. This cover hides pinch-prone areas as well as bearings and other mechanical structures, reducing the entry of external dust and debris. The shroud also gives the robot a cleaner exterior and may improve durability in factory environments.
Second, the bright gold finish on the knee and shin guards of Gen 2.5 has been replaced by a subdued matte black casing. When paired with champagne-gold components, the change creates a more unified black-and-champagne two-tone design.
The robot's arms and hands also look more complete, and the Gen 3 hands have been substantially upgraded. According to Tesla, the hands of Optimus Gen 3 have 22 degrees of freedom, with functionality that is already close to human hand capability. The 22-DoF hands represent a major step for manipulation tasks, as more degrees of freedom allow for finer and more human-like movement. In addition, the overall exterior panels of Gen 3 fit more tightly, further simplifying the robot's silhouette and making it look more like a mature hardware product aimed at consumers.
Mass production preparation: Gen 3 has long been positioned as a version designed specifically for large-scale factory manufacturing. Judging from the refined design exposed in this leak, both the simplification of manufacturing processes and the appearance of the final product have been given very important roles. The emphasis on manufacturability indicates that Tesla is prioritizing efficient assembly and consistent quality as it moves closer to volume production.
Tesla had previously postponed the public debut of Optimus Gen 3. Earlier this spring, Musk said the robot still needed some finishing work before it could formally take the stage. Behind the scenes, however, preparations for Optimus production have advanced rapidly.
Early this summer, Tesla began converting its Fremont factory line—previously used to build the Model S and Model X—for Optimus assembly. The goal is to reach an annual production capacity of 1 million units after the ramp-up. Future capacity targets are much higher: Tesla plans to later increase Optimus annual capacity at its Texas Gigafactory to 10 million units. Such targets underscore the scale Tesla envisions for its robotics business.
The discovery of these 3D models inside the Tesla app further indicates that Tesla is already preparing software-level support. In the future, vehicle owners and robot fleet managers may be able to monitor their robots directly through a mobile phone. This software groundwork complements the hardware progress and points to a future in which robots are managed as connected devices.