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Events / Technology / ChatGPT Market Share Falls Below 50%
Tech market share decline

ChatGPT Market Share Falls Below 50%

Analysis based on 19 articles · First reported Jun 16, 2026 · Last updated Jun 17, 2026

Sentiment
0
Attention
6
Articles
19
Market Impact
General
Live prominence charts, article sentiment distribution, and event development timeline available on the Ergen Dashboard
Market Impact

The decline in ChatGPT's market share signals increased competition and a maturing AI assistant market. This shift benefits companies like Alphabet Inc. and Anthropic, whose AI products Gemini and Claude are gaining traction, potentially leading to diversified investment in AI technologies and increased monetization efforts across the industry. The market is moving from rapid expansion toward maturity, with slowing growth rates in downloads and spending.

Technology Software
Event Summary

ChatGPT's market share has fallen below 50% for the first time since its launch, reaching 46.4% by May's end. This decline is attributed to the rise of competing AI assistants like Alphabet Inc.'s Gemini, which now holds 27.7% of the market, and Anthropic's Claude, with 10.3%. Despite the market share dip, ChatGPT's user base continues to grow, reaching over 1.1 billion monthly active users, making it the fastest app to hit the one-billion-user mark. Users are increasingly willing to switch between AI services, influenced by factors such as functionality, brand trust, and specific events like OpenAI's contract with the United States — United States Department of Defense, which led to ChatGPT uninstalls. The overall AI app market is seeing increased consumer spending, projected to reach over $4 billion in the first half of 2026, but growth rates for downloads and spending are decelerating, suggesting market maturation. Claude stands out in monetization, with 13% of its users paying for subscriptions, while ChatGPT is ramping up advertising and referral links to retailers like Walmart and Oracle Corporation.

Entities Involved
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OpenAI
OpenAI, the developer of ChatGPT, is experiencing a decline in its flagship product's market dominance amidst rising competition, despite continued user growth.
Importance 90.0 Sentiment -15.0
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Gemini
Gemini has rapidly expanded its user base to 662 million monthly users and increased its market share to 27.7%, benefiting from integration with Alphabet Inc.'s services.
Importance 80.0 Sentiment 30.0
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Alphabet Inc.
Alphabet Inc.'s Gemini has gained significant market share, reaching 27.7%, largely due to its integration with Alphabet Inc.'s broader ecosystem.
Importance 70.0 Sentiment 20.0
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Anthropic
Anthropic's Claude has seen substantial growth in market share and user retention, particularly for productivity use cases and monetization.
Importance 60.0 Sentiment 25.0
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Sensor Tower
Sensor Tower is the analytics firm that published the 'State of AI Report for 2026', providing key data and insights into the AI assistant market trends.
Importance 50.0 Sentiment 0.0
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United States — United States Department of Defense
OpenAI's contract with the United States — United States Department of Defense led to a surge in ChatGPT uninstalls, influencing user migration to other platforms.
Importance 20.0 Sentiment 0.0
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United States
The United States is a key market where users are gravitating toward AI assistants for productivity tasks and spending more on premium features.
Importance 15.0 Sentiment 0.0
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Xai
Xai's Grok (chatbot) is mentioned as one of the competing chatbots with less than 5% market share.
Importance 10.0 Sentiment 0.0
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Perplexity AI
Perplexity is listed as an AI assistant with less than 5% market share.
Importance 5.0 Sentiment 0.0
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Costco
ChatGPT is using referral links to Costco, indicating AI's growing role in online shopping.
Importance 5.0 Sentiment 0.0
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Walmart
Walmart has seen AI-driven referrals account for more than 1.5% of visits, indicating AI's growing role in online shopping.
Importance 5.0 Sentiment 0.0
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DeepSeek
DeepSeek is mentioned as an AI assistant with less than 5% market share, though it contributes to the top three in time spent on AI apps.
Importance 5.0 Sentiment 0.0
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Oracle Corporation
Oracle Corporation has seen AI-driven referrals account for more than 1.5% of visits, indicating AI's growing role in online shopping.
Importance 5.0 Sentiment 0.0
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Amazon (company)
Amazon (company) has lagged in AI-driven referrals due to its limited access to certain AI web crawlers.
Importance 5.0 Sentiment 0.0
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Meta Platforms
Meta Platforms is listed as an AI assistant with less than 5% market share.
Importance 5.0 Sentiment 0.0
+ 2 more entities View on Dashboard
Relationships
OpenAI related ↔ Gemini
OpenAI competitor ↔ Alphabet Inc. OpenAI is a direct competitor to Alphabet in the artificial intelligence and web browsing markets, actively accelerating
OpenAI competitor ↔ Anthropic OpenAI directly competes with Anthropic in the development of advanced large language models. Despite past exploratory m
OpenAI related ↔ Sensor Tower
OpenAI related ↔ United States — United States Department of Defense
OpenAI related ↔ United States
OpenAI competitor ↔ Xai OpenAI is a leading artificial intelligence research organization that directly competes with xAI. OpenAI is currently d
OpenAI related ↔ Perplexity AI
Gemini related ↔ Alphabet Inc.
Gemini related ↔ Anthropic
Gemini related ↔ Sensor Tower
Gemini related ↔ United States
Alphabet Inc. investor ↔ Anthropic Alphabet is a major investor in and critical cloud supplier to Anthropic, committing up to $40 billion in funding while
Alphabet Inc. related ↔ Sensor Tower
Alphabet Inc. related ↔ United States — United States Department of Defense
+ 13 more relationships View on Dashboard
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