Image reconstructions of GMVA+ALMA M87 at 86 GHz. Each image presents results obtained by a different algorithm. The top posterior mean image was reconstructed using the resolve Bayesian self-calibration and imaging method. The middle image was obtained using DoG-HiT closure amplitudes and closure phases only imaging. The bottom image was obtained using the CLEAN self-calibration and imaging in Lu et al. (2023). The CLEAN image is convolved with an elliptical beam, which is represented as an ellipse with sizes 79 × 37 μas, PA = −63^∘ in the bottom-left corner.