High-speed machines are widely popular in research due to their high power density, offering excellent technical solutions for many applications. However, synchronous reluctance machines have been absent from this group due to their low mechanical robustness and manufacturing limitations. To address these limitations and broaden the range of high-speed machine solutions, an advanced multi-material additive manufacturing technology of metals was selected. Leveraging the new production possibilities enabled by this technology, the existing topology of the axially laminated anisotropic synchronous reluctance rotor was modified and improved. This resulted in a new rotor design featuring magnetic barriers shaped according to natural flux lines made from non-magnetic 316L stainless steel combined with magnetically conductive 17-4PH stainless steel. Calculations predicted that this rotor design would provide excellent mechanical robustness and electromagnetic properties. Building on these predictions, a 2 kW, 60 000 min−1 high-speed reluctance motor featuring this rotor was designed and optimized. To support the optimization process, various scripts and programs were developed in Python, including an optimization environment and logic using the NSGA-II optimization algorithm, scripts for controlling and processing electromagnetic simulations via the finite element method, and a thermal model with a graphical interface to estimate expected temperatures in the machine. Following this optimization, the final machine design was selected and subsequently manufactured. During manufacturing, the rotor’s inductance was measured both before and after heat treatment, and the homogeneity of the rotor face’s microhardness was verified. The complete machine’s properties were then tested through static and dynamic measurements, with results compared against simulations. During the testing, the machine reached approximately two-thirds of its nominal speed due to excessive vibrations, requiring further performance verification at lower speeds. Nonetheless, these steps were sufficient to validate the functionality and feasibility of the proposed rotor design for the high-speed reluctance machine. Additionally, this is one of the first published and tested machines with a rotor manufactured using multi-material metal additive metal manufacturing. This work presents a novel solution that expands the possibilities for high-speed machines, as confirmed by the awarded patent for this design. Furthermore, the research raised numerous questions and opened new paths for further investigation.