Mass–radius diagram of the known transiting BDs, including TOI-7154b (represented by a star), compared with SM24 (C. V. Morley et al. 2024). The sample of transiting BDs compiled from the TEPCAT database (see J. Southworth 2011 and references therein) and represented by points colored according to their age. These SM24 models are at solar metallicity (Z = 0.0), and the hybrid (solid) and the noncloud (dashed) model tracks are plotted at ages of 0.1, 1.0, 3.4, 5.3, 7.2, and 9.7 Gyr. Hybrid models include the effects of clouds on the atmospheric structure and cooling of the BDs, whereas noncloud models assume that condensates have settled below the photosphere. TOI-7154b lies closest to the noncloud models, indicating that its evolution is best described by cloud-free models. Its mass (71.7 M_J) and radius (0.827 R_J) place it near the minimum of the BD mass–radius relation, consistent with strong electron-degeneracy support and an old age.