211,000,000 cells is $2,327 (= 10 x 20 + 90 x 15 + 111 x 7) If the training data produced by the SELECT query of the CREATE MODEL request exceeds the MAX_CELLS limit you provided (or the default 1 million, if you did not provide one), the CREATE MODEL will randomly choose approximately MAX_CELLS/“number of columns” records from the training dataset and will train using these randomly chosen tuples.