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Sensor Tower · Sneha Pandey · April 2025

MMM: The AI Ghibli Effect Propels ChatGPT Usage and Revenue

Open AI launched their GPT-4o image generation upgrade at the end of March, sparking a Studio Ghibli-inspired image generation trend that catapulted ChatGPT's app downloads, weekly active users (WAUs), and in-app revenue to record levels. By prioritizing image generation as a key feature of their language model, OpenAI underscores its competitive drive to sustain its leadership as other AI models gain traction in international markets.

MMM studio ghibli

Key Takeaways:

  • ChatGPT's app WAUs surpassed 200mn for the first time in the platform’s history in the week of the GPT-4o image generation announcement (3/24/2025) and the following week of the broader rollout (3/31/2025)

  • Weekly app downloads, WAUs and in-app purchase (or subscription) revenue on the ChatGPT app reached an all-time high during the week of 3/24/2025

  • During the week of March 24, 2025, ChatGPT rose to become the fifth most visited desktop site in the US, an increase from its average rank of ninth throughout 2024

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  • Global app downloads and WAUs on the ChatGPT app increased 216% and 27% week-over-week, respectively, during the week of 3/31/2025, following the complete rollout of the image generation upgrade to free and Plus tier users 

    • In-app purchase (or subscription) revenue increased by 19% week-over-week during the 2 week launch period (3/24/2025-4/6/2025)

For more information, request the full report from reports@sensortower.com.


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Sneha Pandey

Written by: Sneha Pandey, Insights Analyst

Date: April 2025