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Duolingo put its sarcastic teen chatbot to work on its earnings call

Duolingo's Wednesday earnings call started with an AI chatbot demonstration. The chatbot, Lily, summarized the company's performance this quarter, which missed paid user targets, and its stock fell 5% in late trading.

Duolingo kicked off its latest investor call on Wednesday with a new voice: Lily, an artificial intelligence-driven chatbot based on a longtime app character. The purple-haired chatbot, which sounded like a bored, sarcastic teenager, replaced CEO Luis von Ahn at the beginning of the video call. In September, the company launched a feature where users can video call Lily and practice speaking with the bot, part of its most expensive pricing tier.

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