Which carbene state has parallel electron spins?

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carbene Nonbonding orbitals in triplet and singlet states

The carbene state characterized by parallel electron spins is known as the triplet state.1

In this configuration, the two nonbonding electrons are divided between two available orbitals and possess parallel spins. Because these unpaired electrons create a magnetic moment that can align in three different ways within a magnetic field, the molecule is referred to as a triplet. This contrasts with the singlet state, in which the two nonbonding electrons occupy the same orbital with paired, opposite spins, resulting in no net magnetic moment.1