Toss users can now contribute real-world data to train AI and get paid for it, in a first-of-its-kind model launching in Korea ahead of global expansion. Poseidon, the data infrastructure built to source and license real-world data for AI, today announced a partnership with Toss, the mobile financial platform operated by Viva Republica, to let everyday users contribute to AI training and be paid for what they provide. It is Toss’s first move into AI data, and it opens that market to its roughly 30 million users.