The '2026 State of AI Report' states that as of now, ChatGPT's share in the global AI assistant market has dropped to 46.4%, Gemini's global share has reached 27.7%, and Claude is at 10.3%. Grok, Perplexity, DeepSeek, Meta AI, Doubao, and others have market shares below 5%, but they are also steadily carving up the AI market. ChatGPT is transitioning from a monopoly to everyone sharing a piece of the AI pie.