"Outstripped" Natural Recordings by Native Speakers
(outstrip) to go beyond or pass someone or something in speed, progress, or achievement. For example: "The new smartphone outstripped its competitors in terms of processing power and memory capacity."
Outstrip means to surpass or exceed someone or something in speed, distance, time, ability, or performance. It can also imply that someone or something is going beyond what is expected or required.
I apologize, but "outtell" is not a word in the English language. It's possible that it's a typo or a nonstandard term. If you meant to say "outtell" as a verb, it doesn't exist. However, if you meant to say "out tell", it would mean to reveal or make known something that was previously hidden or secret.