Contour levels at the 68.3% (darker) and 95.4% (lighter) CL of w and H₀ in a flat wCDM (fwCDM) model for different cosmological probes: time-delay cosmography in MACS 1149 (r model; blue), Planck (orange), H0LiCOW (brown), and BAORSD (red). The horizontal dashed line corresponds to models with w = −1, i.e. with a cosmological constant. BAORSD includes Gaussian priors on the values of ω_b and n_s. Details on these datasets are given in Sect. 3.