AI Market Share refers to the distribution of traffic and users across different conversational AI platforms. In 2026, ChatGPT dominates with 68% market share, followed by Gemini (18.2%) and Perplexity (15%).
AI market distribution in 2026
The conversational AI market is distributed as follows in 2026:
- ChatGPT: 68% market share, 800 million weekly users, 5.6 billion monthly visits (4th most visited site globally)
- Gemini: 18.2% (+12.8 points in one year), 750 million monthly users, 2 billion via AI Overviews
- Perplexity: ~15% of AI traffic, 45 million monthly users, +370% YoY growth
- Claude: 30 million monthly users
In total, there are 1.8 billion AI users worldwide.
Why diversification is crucial
ChatGPT lost 19.2 market share points in one year — the most significant shift in generative AI history. Gemini gained +12.8 points. This volatility shows it's dangerous to focus on a single LLM.
Companies only auditing ChatGPT miss over 30% of the AI market and opportunities on fast-growing platforms.
Impact on your visibility strategy
AI market share diversification means auditing your visibility across all models, not just ChatGPT. AEO and GEO should target all platforms to maximize your Visibility Score.
Tracking market share with AI Labs Audit
AI Labs Audit covers a wide selection of models from many providers, enabling you to measure your AI Share of Voice on each platform. Launch a multi-model audit for a complete view of your visibility.