Lead
Global usage of leading AI platforms continues to climb, with ChatGPT topping the chart at 810 million monthly active users (MAUs) as of November 2025. Google Gemini is accelerating, reaching 346 million MAUs, while Microsoft 365 Copilot holds 212 million. Smaller players Perplexity, Grok, and Claude trail the leaders.
Key Numbers (Global MAUs)
- ChatGPT: 810 million
- Google Gemini: 346 million
- Microsoft 365 Copilot: 212 million
- Perplexity: 45 million
- Grok: 34 million
- Claude: 11 million
Market Trends
- Gemini is catching up: The platform shows a strong upward trajectory through 2025, narrowing the gap with the category leader.
- Copilot stabilizes: Usage for Microsoft 365 Copilot has grown to a substantial base and appears to be stabilizing around the 200 million mark.
- Long tail grows slowly: Perplexity, Grok, and Claude maintain smaller but expanding user communities relative to the top three.
Competitive Landscape
The data highlights a concentrated market led by ChatGPT, with Google and Microsoft consolidating large user bases through consumer and enterprise distribution. The growth path of Gemini indicates intensifying competition among AI assistants and productivity-focused models, while niche platforms seek differentiation through specialized features and communities.
Why It Matters
- User reach as a moat: MAUs serve as a proxy for platform traction and ecosystem potential, influencing developer interest and third-party integrations.
- Enterprise vs. consumer pull: Copilot’s scale underscores enterprise productivity demand, while ChatGPT and Gemini sustain broad consumer adoption.
- Room for challengers: Although smaller today, platforms like Perplexity, Grok, and Claude could gain ground via targeted use cases and rapid product iteration.
Looking Ahead
Expect continued shifts in the leaderboard as product updates, distribution partnerships, and pricing strategies roll out. With Gemini’s rapid rise and Copilot’s enterprise embedding, competition for user attention is set to intensify into 2026.