Due to the signal averaging TAI is an order of magnitude more stable than its best constituent clock.
dˈuː tə ðə sˈɪɡnəl ˈævɹɪdʒɪŋ tˌiːˌeɪˈaɪ ɪz ɐn ˈɔːɹdɚɹ ʌv mˈæɡnɪtˌuːd mˈoːɹ stˈeɪbəl ðɐn ɪts bˈɛst kənstˈɪtʃuːənt klˈɑːk.