ChatGPT Dominates AI Market with 80% Share as Traditional Sectors Decline

OpenAI''s ChatGPT has cemented its position as the undisputed leader in generative AI, capturing 80% of the market with 5.5 billion visits in May 2025. Its traffic surpasses the combined total of rivals like Google''s Gemini, DeepSeek, and Claude by a staggering margin. The platform now boasts over 500 million weekly active users, with mobile app usage exceeding 250 million monthly actives.

Meanwhile, Chinese startup DeepSeek has emerged as a cost-efficient contender, scaling from 33.7 million to 436 million visits in just four months while operating at a fraction of Western models'' costs. This growth comes at the expense of traditional sectors: freelance platforms have seen a 14% decline, educational sites dropped 19%, and Chegg collapsed 64% as AI tools reshape user behavior.

The Microsoft partnership has amplified OpenAI''s reach, but ChatGPT''s dominance reflects deeper market dynamics. It has become the default AI assistant for hundreds of millions, rendering technical comparisons between models increasingly irrelevant in the face of overwhelming user adoption.