When we think of AI chatbots, the popular names are ChatGPT, Gemini, and Claude, among others.
However, which of these tools gets used the most? For this explainer, we analyzed the monthly active user (MAU) volume of these three tools to reveal who’s leading and why it matters.
TL;DR
- ChatGPT still remains the most used chatbot globally, with over 500-600 million monthly users
- Google Gemini could rival ChatGPT, given its large user base and growth through the integration of existing Google services.
- Viral features usually spark the initial magnetism of AI Chatbots.
The figures for this visualization come from Views4You’s 2025 AI usage analysis, which tracks user behavior, adoption patterns, and engagement across major chatbot platforms.
Comparing Monthly Active Users Across Leading AI Chatbots
| wdt_ID | wdt_created_by | wdt_created_at | wdt_last_edited_by | wdt_last_edited_at | AI Chatbot | Monthly Active Users (MAUs) |
|---|---|---|---|---|---|---|
| 1 | Monica Ebunoluwa | 04/06/2026 03:06 PM | Monica Ebunoluwa | 04/06/2026 03:06 PM | ChatGPT | 600 million |
| 2 | Monica Ebunoluwa | 04/06/2026 03:06 PM | Monica Ebunoluwa | 04/06/2026 03:06 PM | Gemini | 400 million |
| 3 | Monica Ebunoluwa | 04/06/2026 03:06 PM | Monica Ebunoluwa | 04/06/2026 03:06 PM | Deepseek | 96.9 million |
| 4 | Monica Ebunoluwa | 04/06/2026 03:06 PM | Monica Ebunoluwa | 04/06/2026 03:06 PM | Grok | 35.1 million |
| 5 | Monica Ebunoluwa | 04/06/2026 03:06 PM | Monica Ebunoluwa | 04/06/2026 03:06 PM | Claude | 30 million |
| 6 | Monica Ebunoluwa | 04/06/2026 03:06 PM | Monica Ebunoluwa | 04/06/2026 03:06 PM | Perplexity | 22 million |
Since these numbers change in real time, it’s tricky to determine the actual volume.
Generally, ChatGPT’s growth has been exponential. According to Brad Lightcap, OpenAI’s Chief Operating Officer, ChatGPT had 400 million weekly users in February 2025.
Mary Meeker’s AI report claimed that it had reached 800 million weekly users by October 2025.
Before then, in July 2025, Sam Altman confirmed that users send 2.5 billion prompts each day.
How’s Google Positioning Gemini?
Google said Gemini had 350 million active users, with around 35 million daily activities. Meanwhile, Google Gemini has been downloaded over 80 million times since it launched.
As Google’s core AI, AI Overviews sees 2 billion users every month, thanks to Google Gemini.
Industries such as education, business services, and technology report increasing adoption, signaling a balance between consumer convenience and professional utility.
Does Claude AI Stand a Chance?
Claude surpassed 30 million monthly active users globally in Q2 2025, representing a 40% increase over the same quarter in 2024.
As of June 2025, Claude processes more than 25 billion API calls per month, with 45% of them originating from enterprise platforms.
Claude’s market share in the enterprise AI assistant space rose to 29%, closing the gap with ChatGPT. So in that segment, they are really doing well.
However, user satisfaction with Claude is 92%, a record high, based on aggregated feedback from major platforms.
Claude is now integrated with over 6,000 enterprise software applications, including Salesforce, Notion, and Slack. This signals potential. But it’s difficult to see it at the same level as ChatGPT.
What Fuels Monthly Active User Growth?
Based on trends analyzed over time, viral features usually spark the initial magnetism of AI Chatbots.
Each update becomes a conversation starter on social media and tech forums, turning functional improvements into headline-grabbing growth.
Mobile access and global rollout also amplify reach.
ELI5
The conversation about monthly active users among popular AI Chatbots is pretty straightforward. There’s clear dominance by ChatGPT, with 500-600 million monthly active users (or up to 800 million weekly active users).
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