Tri-21B is an AI model developed by Trillion Labs (South Korea), first published in August 2025. It works in the language domain, on tasks such as language modeling/generation, question answering, code generation and quantitative reasoning.
Training it took an estimated 2.9×10²³ FLOP of compute (estimation method: reported,operation counting). The model has 20,730,000,000 parameters. It was trained on roughly 2.3T datapoints.
Access: Open weights (restricted use). Its weights are openly available. Epoch AI rates the confidence of this record as confident.