Flan T5
図がわかりやすいかも
If you already know T5, FLAN-T5 is just better at everything. For the same number of parameters, these models have been fine-tuned on more than 1000 additional tasks covering also more languages.
「1000を超える追加タスクでファインチューニング」
日本語にも対応(Languages参照)