Recent analysis from Sensor Tower reveals that ChatGPT's market share has fallen below 50% for the first time, reaching 46.4% by the end of May. This decline is attributed to the rising popularity of competitors, with Gemini capturing 27.7% and Claude holding 10.3% of the market. Other platforms such as Grok, Perplexity, and DeepSeek collectively hold less than 5%. Despite this downturn, ChatGPT continues to lead as the most widely used AI assistant, boasting over 1 billion monthly active users in May. Following ChatGPT are Gemini with 662 million users and Claude with 245 million. Claude is experiencing the most rapid growth, with a remarkable 640% increase in users over the past year, while ChatGPT's user base has grown by 62%. The overall engagement with generative AI services has more than doubled in the past year, with ChatGPT, Claude, and Gemini accounting for nearly 90% of the total time users spend on these platforms.
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