Fermi-LAT spectral energy distributions of J1023 in the pulsar state (magenta diamonds), average disk state (blue crosses), X-ray low mode (red squares), and X-ray high mode (black circles). Solid symbols show data points with TS > 5 and corresponding 1σ uncertainties, and open symbols show 95% confidence level upper limits. Solid lines and shaded regions show best-fit models with the cutoff energy E_c fixed at the average disk state value and their 1σ uncertainties, and dashed lines show best-fit models with the photon index Γ fixed at the average disk state value.