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ChatGPT loses AI prompt share as Gemini and Claude gain
People are using AI assistants more than before.
However, they are spreading their questions across several services.
ChatGPT still has the largest user base, but its share of all prompts has fallen.
Google Gemini and Anthropic Claude have gained more users and conversations.
This does not mean people stopped using ChatGPT.
It means the overall AI market is getting bigger while competitors are growing faster.
AI tools are also appearing more often on phones, computers, and Google search pages.
This may make it harder for publishers to receive website visits from search results.
ChatGPT’s share of AI prompt volume fell from 70% to 50% between January and June 2026.
Google Gemini’s share nearly doubled from 17% to 30%, while Anthropic Claude’s rose from 2% to 11%.
Comscore said overall AI-assistant use is growing as consumers divide prompts among multiple platforms.
Gemini desktop conversations rose from 8 million to 89 million, while Claude reached 22.3 million in June 2026.
Google searches showing AI Overviews increased to 39.4%, raising concerns for publishers dependent on search traffic.
- Who
- Comscore measured usage of ChatGPT, Google Gemini, and Anthropic Claude.
- What
- ChatGPT’s share of AI prompt volume declined as Gemini and Claude gained share in a growing AI-assistant market.
- Where
- Across desktop and mobile AI-assistant use, as well as Google search results.
- When
- The reported prompt-share change occurred between January and June 2026; the report was published in Q2 2026.
- Why
- Consumers are using different AI assistants for different tasks and spreading their prompts across platforms.
Key facts
- ChatGPT prompt share
- Fell from 70% in January to 50% in June 2026.
- Google Gemini prompt share
- Rose from 17% to 30% during the same period.
- Anthropic Claude prompt share
- Rose from 2% to 11% during the same period.
- June desktop conversations
- ChatGPT recorded 168 million; Gemini reached 89 million; Claude reached 22.3 million.
- AI-assistant reach
- In June, 35% of desktop users and 29% of mobile users visited an AI assistant.
- Google AI Overviews
- The share of desktop searches showing an AI Overview rose from 25.8% in July 2025 to 39.4% in June 2026.
- Research sample
- Comscore’s opt-in panel covered between 500,000 and 1 million users.
Quotes
Smriti Sharma
Comscore’s chief analytics and technology officer
“AI assistants collectively are becoming a consumer behavior layer”
firstpost.com
Sources
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