Airbnb reports one of its strongest growth quarters in years, and its stock rises more than 15% after the earnings announcement. In comments following the results, CEO Brian Chesky says the company’s progress is being driven by artificial intelligence, which he previously underestimated. He says Airbnb has returned to faster growth over the past year and that AI is now “super-charging” the business.

Chesky also indicates Airbnb plans to increase investment in AI. CNBC reports he says the company will spend “a lot more” on AI, reflecting increased confidence that the technology is contributing to the company’s performance. The reporting frames Chesky’s remarks as a shift from earlier uncertainty about whether AI would materially help Airbnb, to a view that it is playing a major role in renewed momentum.

Overall, the sources link Airbnb’s quarterly results and stock move directly to Chesky’s reassessment of AI’s impact and his stated intention to expand spending in the area.