ChatGPT Market Share Drops Below 50% as AI Chatbot Competition Grows

By: Harsh Vardhan

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Updated on: 17-Jun-2026 10:01 AM

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ChatGPT, once the clear leader in the AI chatbot market, now holds less than half of the global market share for the first time. In May, ChatGPT's share dropped to 46.4%, reflecting increased competition from other AI chatbots. Gemini follows with a 27.7% share, while Claude holds 10.3%. This marks a significant shift from ChatGPT's initial 100% dominance when it launched.

Key Highlights

• ChatGPT's market share fell to 46.4 percent in May as competitors gained ground.
• Gemini reached 662 million monthly active users while Claude hit 245 million.
• Spending on AI chatbots rose to $4.2 billion in the first half of this year.
• Claude has the highest paid user ratio at 13 percent due to strict free plan limits.
• ChatGPT served ads to 17 percent of daily users and uses referral links to major retailers.

AI Chatbot Usage and Growth

Despite the decrease in market share, overall usage of AI chatbots continues to rise. ChatGPT surpassed 1 billion monthly active users and reached 1.1 billion earlier this month. This milestone makes ChatGPT the first AI chatbot to achieve this number and the fastest-growing online application to date.

Gemini, ChatGPT's closest competitor, now has 662 million monthly active users. Claude, another major player, has 245 million monthly active users. The increasing user base for all three platforms indicates growing public interest in AI chatbots.

Monetization and User Behavior

Spending on AI chatbot applications reached $4.2 billion in the first half of this year. This is a significant increase from $1.83 billion spent in the same period last year. The rise in spending reflects both higher usage and new monetization strategies by chatbot providers.

Claude has the highest proportion of paid users, with 13% of its total user base subscribing to paid plans. This is likely influenced by strict usage limits on Claude's free plan, encouraging users to upgrade. In contrast, ChatGPT has increased its use of advertising. By May, 17% of ChatGPT's daily users encountered ads while using the service. ChatGPT also uses referral links to retailers such as Target, Walmart, and Costco to generate additional revenue.

Changing User Preferences

Users are increasingly switching between different AI chatbots rather than relying on a single platform. This trend suggests that users are seeking the best features and experiences across multiple services. As competition intensifies, chatbot providers are adapting their strategies to retain and attract users.

The AI chatbot market continues to evolve rapidly, with new features, monetization models, and user behaviors shaping the landscape. ChatGPT remains a major force, but its competitors are closing the gap as the market expands.