ChatGPT Holds Strong Revenue Position Amidst Rising Competition

Sensor Tower’s recent market analysis indicates that OpenAI’s ChatGPT continues to dominate the consumer generative AI landscape, capturing 63% of all in-app purchase revenue. This lead is attributed partly to its effective $20 monthly subscription model which converts casual users into loyal paying customers.

The platform has achieved remarkable engagement metrics, reaching over 1 billion monthly active users by May 2026—the fastest mobile software ever to reach this milestone, surpassing TikTok and Instagram by several years. This rapid growth demonstrates a strong market demand for accessible AI tools.

Market Expansion Beyond ChatGPT

The broader generative AI market is experiencing significant expansion, with in-app purchases projected to exceed $4 billion in the first half of 2026—a 36% increase over the previous six months. This indicates a thriving sector poised for continued growth.

Competition Emerges as Alternatives Gain Traction

While ChatGPT maintains its revenue edge, competition is intensifying. Anthropic’s Claude has seen user engagement surge by 452% in the past year, while Google Gemini expands internationally. Users now spend an average of two hours on Claude per session—a significant increase from less than 40 minutes previously.

Despite market fragmentation, ChatGPT, Google Gemini, and DeepSeek collectively account for 90% of user engagement time globally, highlighting the continued dominance of established players while acknowledging the evolving competitive landscape. The emergence of viable alternatives promises more innovation and choice for consumers in the years to come.