The double vibrational collision-induced absorptions CO₂ (ν₃ = 1) + X₂ (ν₁ = 1) ← CO₂ (ν₃ = 0) + X₂ (ν₁ = 0), for X₂ = H₂, N₂, and O₂ are studied on the basis of quantum lineshapes computed using isotropic potentials and dipole-induced dipole functions. The linestrengths and energies of the vibration–rotation transitions are treated explicitly for X₂ and utilizing the HITRAN database for CO₂. From the frequency-dependent absorption profiles, the integrated absorption intensities are determined to be 7.2 ± 1.2, 1.2 ± 0.1, and 1.1 ± 0.2 (10⁻⁴cm⁻² amagat⁻²) for the H₂, N₂, and O₂ collision partners, respectively. The integrated intensities for H₂ and N₂ agree well with previously measured and calculated results, while the value for O₂, which represents the first theoretical determination for this absorption, is approximately four times greater than the only experimental measurement (0.29 × 10⁻⁴ cm⁻² amagat⁻²).