For the primary time, OpenAI’s ChatGPT has misplaced its majority maintain on the unreal intelligence assistant market. In accordance with a Sensor Tower report, whereas ChatGPT stays the top-ranked AI assistant product, it now holds a plurality somewhat than a majority of the consumer base.
Initially of the yr, ChatGPT managed over 50% of the market share, however that determine dropped to an all-time low of 46.4% as of late Could.
Drivers of the Market Shift

This decline follows a difficult interval for OpenAI’s model picture. In March, the corporate secured a contract with the Pentagon, sparking a backlash from some customers and giving rise to a grassroots boycott motion known as “QuitGPT,” which claims hundreds of thousands of individuals.
Concurrently, OpenAI shifted its inner technique away from consumer-focused artistic tasks towards enterprise and productiveness instruments, which included the discontinuation of its video-generation utility, Sora. The introduction of commercials inside ChatGPT earlier this yr additional impacted consumer sentiment.

In distinction, rivals have capitalized on these shifts. Anthropic positioned itself as a extra ethically minded different, triggering a major rise in its revenue-generating enterprise purchasers.
Whereas Anthropic’s Claude nonetheless holds a modest 10.3% market share, a Reuters evaluation of the Sensor Tower information reveals that its month-to-month lively consumer progress surged by 640% year-over-year, vastly outpacing ChatGPT’s 62% progress fee.
Present Market Panorama
The broader AI assistant market is now extra divided. Google’s Gemini has solidified its place as the first challenger to OpenAI, capturing 27.7% of the market.
The remaining section of the business is extremely fragmented; smaller rivals and different platforms—together with xAI’s Grok, Perplexity, Meta AI, and DeepSeek—are bundled into an “different” class, which collectively accounts for roughly 5% of the overall market share.
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